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    at org.apache.maven.lifecycle.internal.MojoExecutor.access$000 (MojoExecutor.java:76)
    at org.apache.maven.lifecycle.internal.MojoExecutor$1.run (MojoExecutor.java:163)
    at org.apache.maven.plugin.DefaultMojosExecutionStrategy.execute (DefaultMojosExecutionStrategy.java:39)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:160)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:105)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:73)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:53)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:118)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:261)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:173)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:101)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:910)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:283)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:206)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:77)
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:568)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:283)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:226)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:407)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:348)
Caused by: org.eclipse.aether.resolution.ArtifactResolutionException: The following artifacts could not be resolved: org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 (absent): org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 was not found in https://oss.sonatype.org/content/repositories/public/ during a previous attempt. This failure was cached in the local repository and resolution is not reattempted until the update interval of tycho has elapsed or updates are forced
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve (DefaultArtifactResolver.java:472)
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts (DefaultArtifactResolver.java:260)
    at org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveDependencies (DefaultRepositorySystem.java:352)
    at org.apache.maven.plugin.internal.DefaultPluginDependenciesResolver.resolveInternal (DefaultPluginDependenciesResolver.java:229)
    at org.apache.maven.plugin.internal.DefaultPluginDependenciesResolver.resolve (DefaultPluginDependenciesResolver.java:175)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.createPluginRealm (DefaultMavenPluginManager.java:380)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.lambda$setupPluginRealm$1 (DefaultMavenPluginManager.java:343)
    at org.apache.maven.plugin.DefaultPluginRealmCache.lambda$get$0 (DefaultPluginRealmCache.java:156)
    at java.util.concurrent.ConcurrentHashMap.computeIfAbsent (ConcurrentHashMap.java:1740)
    at org.apache.maven.plugin.DefaultPluginRealmCache.get (DefaultPluginRealmCache.java:154)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.setupPluginRealm (DefaultMavenPluginManager.java:342)
    at org.apache.maven.plugin.DefaultBuildPluginManager.getPluginRealm (DefaultBuildPluginManager.java:205)
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:98)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2 (MojoExecutor.java:342)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute (MojoExecutor.java:330)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:213)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:175)
    at org.apache.maven.lifecycle.internal.MojoExecutor.access$000 (MojoExecutor.java:76)
    at org.apache.maven.lifecycle.internal.MojoExecutor$1.run (MojoExecutor.java:163)
    at org.apache.maven.plugin.DefaultMojosExecutionStrategy.execute (DefaultMojosExecutionStrategy.java:39)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:160)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:105)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:73)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:53)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:118)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:261)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:173)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:101)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:910)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:283)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:206)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:77)
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:568)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:283)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:226)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:407)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:348)
Caused by: org.eclipse.aether.transfer.ArtifactNotFoundException: org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 was not found in https://oss.sonatype.org/content/repositories/public/ during a previous attempt. This failure was cached in the local repository and resolution is not reattempted until the update interval of tycho has elapsed or updates are forced
    at org.eclipse.aether.internal.impl.DefaultUpdateCheckManager.newException (DefaultUpdateCheckManager.java:204)
    at org.eclipse.aether.internal.impl.DefaultUpdateCheckManager.checkArtifact (DefaultUpdateCheckManager.java:167)
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.gatherDownloads (DefaultArtifactResolver.java:585)
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.performDownloads (DefaultArtifactResolver.java:524)
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve (DefaultArtifactResolver.java:448)
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts (DefaultArtifactResolver.java:260)
    at org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveDependencies (DefaultRepositorySystem.java:352)
    at org.apache.maven.plugin.internal.DefaultPluginDependenciesResolver.resolveInternal (DefaultPluginDependenciesResolver.java:229)
    at org.apache.maven.plugin.internal.DefaultPluginDependenciesResolver.resolve (DefaultPluginDependenciesResolver.java:175)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.createPluginRealm (DefaultMavenPluginManager.java:380)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.lambda$setupPluginRealm$1 (DefaultMavenPluginManager.java:343)
    at org.apache.maven.plugin.DefaultPluginRealmCache.lambda$get$0 (DefaultPluginRealmCache.java:156)
    at java.util.concurrent.ConcurrentHashMap.computeIfAbsent (ConcurrentHashMap.java:1740)
    at org.apache.maven.plugin.DefaultPluginRealmCache.get (DefaultPluginRealmCache.java:154)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.setupPluginRealm (DefaultMavenPluginManager.java:342)
    at org.apache.maven.plugin.DefaultBuildPluginManager.getPluginRealm (DefaultBuildPluginManager.java:205)
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:98)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2 (MojoExecutor.java:342)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute (MojoExecutor.java:330)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:213)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:175)
    at org.apache.maven.lifecycle.internal.MojoExecutor.access$000 (MojoExecutor.java:76)
    at org.apache.maven.lifecycle.internal.MojoExecutor$1.run (MojoExecutor.java:163)
    at org.apache.maven.plugin.DefaultMojosExecutionStrategy.execute (DefaultMojosExecutionStrategy.java:39)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:160)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:105)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:73)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:53)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:118)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:261)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:173)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:101)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:910)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:283)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:206)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:77)
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:568)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:283)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:226)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:407)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:348)
[ERROR] Failed to execute goal org.eclipse.tycho:tycho-packaging-plugin:2.7.5:build-qualifier (default-build-qualifier) on project org.eclipse.jst.ws.jaxws.dom.doc.isv: Execution default-build-qualifier of goal org.eclipse.tycho:tycho-packaging-plugin:2.7.5:build-qualifier failed: Plugin org.eclipse.tycho:tycho-packaging-plugin:2.7.5 or one of its dependencies could not be resolved: The following artifacts could not be resolved: org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 (absent): org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 was not found in https://oss.sonatype.org/content/repositories/public/ during a previous attempt. This failure was cached in the local repository and resolution is not reattempted until the update interval of tycho has elapsed or updates are forced -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.eclipse.tycho:tycho-packaging-plugin:2.7.5:build-qualifier (default-build-qualifier) on project org.eclipse.jst.ws.jaxws.dom.doc.isv: Execution default-build-qualifier of goal org.eclipse.tycho:tycho-packaging-plugin:2.7.5:build-qualifier failed: Plugin org.eclipse.tycho:tycho-packaging-plugin:2.7.5 or one of its dependencies could not be resolved: The following artifacts could not be resolved: org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 (absent): org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 was not found in https://oss.sonatype.org/content/repositories/public/ during a previous attempt. This failure was cached in the local repository and resolution is not reattempted until the update interval of tycho has elapsed or updates are forced
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2 (MojoExecutor.java:347)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute (MojoExecutor.java:330)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:213)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:175)
    at org.apache.maven.lifecycle.internal.MojoExecutor.access$000 (MojoExecutor.java:76)
    at org.apache.maven.lifecycle.internal.MojoExecutor$1.run (MojoExecutor.java:163)
    at org.apache.maven.plugin.DefaultMojosExecutionStrategy.execute (DefaultMojosExecutionStrategy.java:39)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:160)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:105)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:73)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:53)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:118)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:261)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:173)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:101)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:910)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:283)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:206)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:77)
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:568)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:283)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:226)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:407)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:348)
Caused by: org.apache.maven.plugin.PluginExecutionException: Execution default-build-qualifier of goal org.eclipse.tycho:tycho-packaging-plugin:2.7.5:build-qualifier failed: Plugin org.eclipse.tycho:tycho-packaging-plugin:2.7.5 or one of its dependencies could not be resolved: The following artifacts could not be resolved: org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 (absent): org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 was not found in https://oss.sonatype.org/content/repositories/public/ during a previous attempt. This failure was cached in the local repository and resolution is not reattempted until the update interval of tycho has elapsed or updates are forced
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:100)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2 (MojoExecutor.java:342)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute (MojoExecutor.java:330)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:213)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:175)
    at org.apache.maven.lifecycle.internal.MojoExecutor.access$000 (MojoExecutor.java:76)
    at org.apache.maven.lifecycle.internal.MojoExecutor$1.run (MojoExecutor.java:163)
    at org.apache.maven.plugin.DefaultMojosExecutionStrategy.execute (DefaultMojosExecutionStrategy.java:39)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:160)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:105)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:73)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:53)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:118)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:261)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:173)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:101)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:910)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:283)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:206)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:77)
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:568)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:283)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:226)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:407)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:348)
Caused by: org.apache.maven.plugin.PluginResolutionException: Plugin org.eclipse.tycho:tycho-packaging-plugin:2.7.5 or one of its dependencies could not be resolved: The following artifacts could not be resolved: org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 (absent): org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 was not found in https://oss.sonatype.org/content/repositories/public/ during a previous attempt. This failure was cached in the local repository and resolution is not reattempted until the update interval of tycho has elapsed or updates are forced
    at org.apache.maven.plugin.internal.DefaultPluginDependenciesResolver.resolveInternal (DefaultPluginDependenciesResolver.java:233)
    at org.apache.maven.plugin.internal.DefaultPluginDependenciesResolver.resolve (DefaultPluginDependenciesResolver.java:175)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.createPluginRealm (DefaultMavenPluginManager.java:380)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.lambda$setupPluginRealm$1 (DefaultMavenPluginManager.java:343)
    at org.apache.maven.plugin.DefaultPluginRealmCache.lambda$get$0 (DefaultPluginRealmCache.java:156)
    at java.util.concurrent.ConcurrentHashMap.computeIfAbsent (ConcurrentHashMap.java:1740)
    at org.apache.maven.plugin.DefaultPluginRealmCache.get (DefaultPluginRealmCache.java:154)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.setupPluginRealm (DefaultMavenPluginManager.java:342)
    at org.apache.maven.plugin.DefaultBuildPluginManager.getPluginRealm (DefaultBuildPluginManager.java:205)
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:98)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2 (MojoExecutor.java:342)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute (MojoExecutor.java:330)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:213)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:175)
    at org.apache.maven.lifecycle.internal.MojoExecutor.access$000 (MojoExecutor.java:76)
    at org.apache.maven.lifecycle.internal.MojoExecutor$1.run (MojoExecutor.java:163)
    at org.apache.maven.plugin.DefaultMojosExecutionStrategy.execute (DefaultMojosExecutionStrategy.java:39)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:160)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:105)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:73)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:53)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:118)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:261)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:173)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:101)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:910)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:283)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:206)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:77)
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:568)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:283)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:226)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:407)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:348)
Caused by: org.eclipse.aether.resolution.ArtifactResolutionException: The following artifacts could not be resolved: org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 (absent): org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 was not found in https://oss.sonatype.org/content/repositories/public/ during a previous attempt. This failure was cached in the local repository and resolution is not reattempted until the update interval of tycho has elapsed or updates are forced
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve (DefaultArtifactResolver.java:472)
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts (DefaultArtifactResolver.java:260)
    at org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveDependencies (DefaultRepositorySystem.java:352)
    at org.apache.maven.plugin.internal.DefaultPluginDependenciesResolver.resolveInternal (DefaultPluginDependenciesResolver.java:229)
    at org.apache.maven.plugin.internal.DefaultPluginDependenciesResolver.resolve (DefaultPluginDependenciesResolver.java:175)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.createPluginRealm (DefaultMavenPluginManager.java:380)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.lambda$setupPluginRealm$1 (DefaultMavenPluginManager.java:343)
    at org.apache.maven.plugin.DefaultPluginRealmCache.lambda$get$0 (DefaultPluginRealmCache.java:156)
    at java.util.concurrent.ConcurrentHashMap.computeIfAbsent (ConcurrentHashMap.java:1740)
    at org.apache.maven.plugin.DefaultPluginRealmCache.get (DefaultPluginRealmCache.java:154)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.setupPluginRealm (DefaultMavenPluginManager.java:342)
    at org.apache.maven.plugin.DefaultBuildPluginManager.getPluginRealm (DefaultBuildPluginManager.java:205)
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:98)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2 (MojoExecutor.java:342)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute (MojoExecutor.java:330)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:213)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:175)
    at org.apache.maven.lifecycle.internal.MojoExecutor.access$000 (MojoExecutor.java:76)
    at org.apache.maven.lifecycle.internal.MojoExecutor$1.run (MojoExecutor.java:163)
    at org.apache.maven.plugin.DefaultMojosExecutionStrategy.execute (DefaultMojosExecutionStrategy.java:39)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:160)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:105)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:73)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:53)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:118)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:261)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:173)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:101)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:910)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:283)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:206)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:77)
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:568)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:283)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:226)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:407)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:348)
Caused by: org.eclipse.aether.transfer.ArtifactNotFoundException: org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 was not found in https://oss.sonatype.org/content/repositories/public/ during a previous attempt. This failure was cached in the local repository and resolution is not reattempted until the update interval of tycho has elapsed or updates are forced
    at org.eclipse.aether.internal.impl.DefaultUpdateCheckManager.newException (DefaultUpdateCheckManager.java:204)
    at org.eclipse.aether.internal.impl.DefaultUpdateCheckManager.checkArtifact (DefaultUpdateCheckManager.java:167)
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.gatherDownloads (DefaultArtifactResolver.java:585)
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.performDownloads (DefaultArtifactResolver.java:524)
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve (DefaultArtifactResolver.java:448)
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts (DefaultArtifactResolver.java:260)
    at org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveDependencies (DefaultRepositorySystem.java:352)
    at org.apache.maven.plugin.internal.DefaultPluginDependenciesResolver.resolveInternal (DefaultPluginDependenciesResolver.java:229)
    at org.apache.maven.plugin.internal.DefaultPluginDependenciesResolver.resolve (DefaultPluginDependenciesResolver.java:175)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.createPluginRealm (DefaultMavenPluginManager.java:380)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.lambda$setupPluginRealm$1 (DefaultMavenPluginManager.java:343)
    at org.apache.maven.plugin.DefaultPluginRealmCache.lambda$get$0 (DefaultPluginRealmCache.java:156)
    at java.util.concurrent.ConcurrentHashMap.computeIfAbsent (ConcurrentHashMap.java:1740)
    at org.apache.maven.plugin.DefaultPluginRealmCache.get (DefaultPluginRealmCache.java:154)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.setupPluginRealm (DefaultMavenPluginManager.java:342)
    at org.apache.maven.plugin.DefaultBuildPluginManager.getPluginRealm (DefaultBuildPluginManager.java:205)
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:98)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2 (MojoExecutor.java:342)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute (MojoExecutor.java:330)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:213)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:175)
    at org.apache.maven.lifecycle.internal.MojoExecutor.access$000 (MojoExecutor.java:76)
    at org.apache.maven.lifecycle.internal.MojoExecutor$1.run (MojoExecutor.java:163)
    at org.apache.maven.plugin.DefaultMojosExecutionStrategy.execute (DefaultMojosExecutionStrategy.java:39)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:160)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:105)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:73)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:53)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:118)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:261)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:173)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:101)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:910)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:283)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:206)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:77)
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:568)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:283)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:226)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:407)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:348)
[ERROR] Failed to execute goal org.eclipse.tycho:tycho-packaging-plugin:2.7.5:build-qualifier (default-build-qualifier) on project org.jmock: Execution default-build-qualifier of goal org.eclipse.tycho:tycho-packaging-plugin:2.7.5:build-qualifier failed: Plugin org.eclipse.tycho:tycho-packaging-plugin:2.7.5 or one of its dependencies could not be resolved: The following artifacts could not be resolved: org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 (absent): org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 was not found in https://oss.sonatype.org/content/repositories/public/ during a previous attempt. This failure was cached in the local repository and resolution is not reattempted until the update interval of tycho has elapsed or updates are forced -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.eclipse.tycho:tycho-packaging-plugin:2.7.5:build-qualifier (default-build-qualifier) on project org.jmock: Execution default-build-qualifier of goal org.eclipse.tycho:tycho-packaging-plugin:2.7.5:build-qualifier failed: Plugin org.eclipse.tycho:tycho-packaging-plugin:2.7.5 or one of its dependencies could not be resolved: The following artifacts could not be resolved: org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 (absent): org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 was not found in https://oss.sonatype.org/content/repositories/public/ during a previous attempt. This failure was cached in the local repository and resolution is not reattempted until the update interval of tycho has elapsed or updates are forced
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2 (MojoExecutor.java:347)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute (MojoExecutor.java:330)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:213)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:175)
    at org.apache.maven.lifecycle.internal.MojoExecutor.access$000 (MojoExecutor.java:76)
    at org.apache.maven.lifecycle.internal.MojoExecutor$1.run (MojoExecutor.java:163)
    at org.apache.maven.plugin.DefaultMojosExecutionStrategy.execute (DefaultMojosExecutionStrategy.java:39)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:160)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:105)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:73)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:53)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:118)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:261)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:173)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:101)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:910)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:283)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:206)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:77)
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:568)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:283)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:226)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:407)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:348)
Caused by: org.apache.maven.plugin.PluginExecutionException: Execution default-build-qualifier of goal org.eclipse.tycho:tycho-packaging-plugin:2.7.5:build-qualifier failed: Plugin org.eclipse.tycho:tycho-packaging-plugin:2.7.5 or one of its dependencies could not be resolved: The following artifacts could not be resolved: org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 (absent): org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 was not found in https://oss.sonatype.org/content/repositories/public/ during a previous attempt. This failure was cached in the local repository and resolution is not reattempted until the update interval of tycho has elapsed or updates are forced
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:100)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2 (MojoExecutor.java:342)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute (MojoExecutor.java:330)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:213)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:175)
    at org.apache.maven.lifecycle.internal.MojoExecutor.access$000 (MojoExecutor.java:76)
    at org.apache.maven.lifecycle.internal.MojoExecutor$1.run (MojoExecutor.java:163)
    at org.apache.maven.plugin.DefaultMojosExecutionStrategy.execute (DefaultMojosExecutionStrategy.java:39)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:160)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:105)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:73)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:53)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:118)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:261)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:173)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:101)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:910)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:283)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:206)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:77)
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:568)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:283)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:226)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:407)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:348)
Caused by: org.apache.maven.plugin.PluginResolutionException: Plugin org.eclipse.tycho:tycho-packaging-plugin:2.7.5 or one of its dependencies could not be resolved: The following artifacts could not be resolved: org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 (absent): org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 was not found in https://oss.sonatype.org/content/repositories/public/ during a previous attempt. This failure was cached in the local repository and resolution is not reattempted until the update interval of tycho has elapsed or updates are forced
    at org.apache.maven.plugin.internal.DefaultPluginDependenciesResolver.resolveInternal (DefaultPluginDependenciesResolver.java:233)
    at org.apache.maven.plugin.internal.DefaultPluginDependenciesResolver.resolve (DefaultPluginDependenciesResolver.java:175)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.createPluginRealm (DefaultMavenPluginManager.java:380)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.lambda$setupPluginRealm$1 (DefaultMavenPluginManager.java:343)
    at org.apache.maven.plugin.DefaultPluginRealmCache.lambda$get$0 (DefaultPluginRealmCache.java:156)
    at java.util.concurrent.ConcurrentHashMap.computeIfAbsent (ConcurrentHashMap.java:1740)
    at org.apache.maven.plugin.DefaultPluginRealmCache.get (DefaultPluginRealmCache.java:154)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.setupPluginRealm (DefaultMavenPluginManager.java:342)
    at org.apache.maven.plugin.DefaultBuildPluginManager.getPluginRealm (DefaultBuildPluginManager.java:205)
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:98)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2 (MojoExecutor.java:342)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute (MojoExecutor.java:330)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:213)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:175)
    at org.apache.maven.lifecycle.internal.MojoExecutor.access$000 (MojoExecutor.java:76)
    at org.apache.maven.lifecycle.internal.MojoExecutor$1.run (MojoExecutor.java:163)
    at org.apache.maven.plugin.DefaultMojosExecutionStrategy.execute (DefaultMojosExecutionStrategy.java:39)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:160)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:105)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:73)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:53)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:118)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:261)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:173)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:101)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:910)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:283)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:206)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:77)
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:568)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:283)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:226)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:407)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:348)
Caused by: org.eclipse.aether.resolution.ArtifactResolutionException: The following artifacts could not be resolved: org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 (absent): org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 was not found in https://oss.sonatype.org/content/repositories/public/ during a previous attempt. This failure was cached in the local repository and resolution is not reattempted until the update interval of tycho has elapsed or updates are forced
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve (DefaultArtifactResolver.java:472)
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts (DefaultArtifactResolver.java:260)
    at org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveDependencies (DefaultRepositorySystem.java:352)
    at org.apache.maven.plugin.internal.DefaultPluginDependenciesResolver.resolveInternal (DefaultPluginDependenciesResolver.java:229)
    at org.apache.maven.plugin.internal.DefaultPluginDependenciesResolver.resolve (DefaultPluginDependenciesResolver.java:175)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.createPluginRealm (DefaultMavenPluginManager.java:380)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.lambda$setupPluginRealm$1 (DefaultMavenPluginManager.java:343)
    at org.apache.maven.plugin.DefaultPluginRealmCache.lambda$get$0 (DefaultPluginRealmCache.java:156)
    at java.util.concurrent.ConcurrentHashMap.computeIfAbsent (ConcurrentHashMap.java:1740)
    at org.apache.maven.plugin.DefaultPluginRealmCache.get (DefaultPluginRealmCache.java:154)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.setupPluginRealm (DefaultMavenPluginManager.java:342)
    at org.apache.maven.plugin.DefaultBuildPluginManager.getPluginRealm (DefaultBuildPluginManager.java:205)
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:98)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2 (MojoExecutor.java:342)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute (MojoExecutor.java:330)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:213)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:175)
    at org.apache.maven.lifecycle.internal.MojoExecutor.access$000 (MojoExecutor.java:76)
    at org.apache.maven.lifecycle.internal.MojoExecutor$1.run (MojoExecutor.java:163)
    at org.apache.maven.plugin.DefaultMojosExecutionStrategy.execute (DefaultMojosExecutionStrategy.java:39)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:160)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:105)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:73)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:53)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:118)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:261)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:173)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:101)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:910)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:283)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:206)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:77)
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:568)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:283)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:226)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:407)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:348)
Caused by: org.eclipse.aether.transfer.ArtifactNotFoundException: org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 was not found in https://oss.sonatype.org/content/repositories/public/ during a previous attempt. This failure was cached in the local repository and resolution is not reattempted until the update interval of tycho has elapsed or updates are forced
    at org.eclipse.aether.internal.impl.DefaultUpdateCheckManager.newException (DefaultUpdateCheckManager.java:204)
    at org.eclipse.aether.internal.impl.DefaultUpdateCheckManager.checkArtifact (DefaultUpdateCheckManager.java:167)
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.gatherDownloads (DefaultArtifactResolver.java:585)
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.performDownloads (DefaultArtifactResolver.java:524)
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve (DefaultArtifactResolver.java:448)
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts (DefaultArtifactResolver.java:260)
    at org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveDependencies (DefaultRepositorySystem.java:352)
    at org.apache.maven.plugin.internal.DefaultPluginDependenciesResolver.resolveInternal (DefaultPluginDependenciesResolver.java:229)
    at org.apache.maven.plugin.internal.DefaultPluginDependenciesResolver.resolve (DefaultPluginDependenciesResolver.java:175)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.createPluginRealm (DefaultMavenPluginManager.java:380)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.lambda$setupPluginRealm$1 (DefaultMavenPluginManager.java:343)
    at org.apache.maven.plugin.DefaultPluginRealmCache.lambda$get$0 (DefaultPluginRealmCache.java:156)
    at java.util.concurrent.ConcurrentHashMap.computeIfAbsent (ConcurrentHashMap.java:1740)
    at org.apache.maven.plugin.DefaultPluginRealmCache.get (DefaultPluginRealmCache.java:154)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.setupPluginRealm (DefaultMavenPluginManager.java:342)
    at org.apache.maven.plugin.DefaultBuildPluginManager.getPluginRealm (DefaultBuildPluginManager.java:205)
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:98)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2 (MojoExecutor.java:342)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute (MojoExecutor.java:330)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:213)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:175)
    at org.apache.maven.lifecycle.internal.MojoExecutor.access$000 (MojoExecutor.java:76)
    at org.apache.maven.lifecycle.internal.MojoExecutor$1.run (MojoExecutor.java:163)
    at org.apache.maven.plugin.DefaultMojosExecutionStrategy.execute (DefaultMojosExecutionStrategy.java:39)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:160)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:105)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:73)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:53)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:118)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:261)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:173)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:101)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:910)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:283)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:206)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:77)
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:568)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:283)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:226)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:407)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:348)
[ERROR] Failed to execute goal org.eclipse.tycho:tycho-packaging-plugin:2.7.5:build-qualifier (default-build-qualifier) on project org.eclipse.jst.ws.axis2.ui.doc.user: Execution default-build-qualifier of goal org.eclipse.tycho:tycho-packaging-plugin:2.7.5:build-qualifier failed: Plugin org.eclipse.tycho:tycho-packaging-plugin:2.7.5 or one of its dependencies could not be resolved: The following artifacts could not be resolved: org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 (absent): org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 was not found in https://oss.sonatype.org/content/repositories/public/ during a previous attempt. This failure was cached in the local repository and resolution is not reattempted until the update interval of tycho has elapsed or updates are forced -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.eclipse.tycho:tycho-packaging-plugin:2.7.5:build-qualifier (default-build-qualifier) on project org.eclipse.jst.ws.axis2.ui.doc.user: Execution default-build-qualifier of goal org.eclipse.tycho:tycho-packaging-plugin:2.7.5:build-qualifier failed: Plugin org.eclipse.tycho:tycho-packaging-plugin:2.7.5 or one of its dependencies could not be resolved: The following artifacts could not be resolved: org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 (absent): org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 was not found in https://oss.sonatype.org/content/repositories/public/ during a previous attempt. This failure was cached in the local repository and resolution is not reattempted until the update interval of tycho has elapsed or updates are forced
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2 (MojoExecutor.java:347)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute (MojoExecutor.java:330)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:213)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:175)
    at org.apache.maven.lifecycle.internal.MojoExecutor.access$000 (MojoExecutor.java:76)
    at org.apache.maven.lifecycle.internal.MojoExecutor$1.run (MojoExecutor.java:163)
    at org.apache.maven.plugin.DefaultMojosExecutionStrategy.execute (DefaultMojosExecutionStrategy.java:39)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:160)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:105)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:73)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:53)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:118)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:261)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:173)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:101)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:910)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:283)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:206)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:77)
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:568)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:283)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:226)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:407)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:348)
Caused by: org.apache.maven.plugin.PluginExecutionException: Execution default-build-qualifier of goal org.eclipse.tycho:tycho-packaging-plugin:2.7.5:build-qualifier failed: Plugin org.eclipse.tycho:tycho-packaging-plugin:2.7.5 or one of its dependencies could not be resolved: The following artifacts could not be resolved: org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 (absent): org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 was not found in https://oss.sonatype.org/content/repositories/public/ during a previous attempt. This failure was cached in the local repository and resolution is not reattempted until the update interval of tycho has elapsed or updates are forced
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:100)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2 (MojoExecutor.java:342)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute (MojoExecutor.java:330)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:213)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:175)
    at org.apache.maven.lifecycle.internal.MojoExecutor.access$000 (MojoExecutor.java:76)
    at org.apache.maven.lifecycle.internal.MojoExecutor$1.run (MojoExecutor.java:163)
    at org.apache.maven.plugin.DefaultMojosExecutionStrategy.execute (DefaultMojosExecutionStrategy.java:39)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:160)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:105)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:73)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:53)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:118)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:261)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:173)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:101)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:910)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:283)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:206)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:77)
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:568)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:283)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:226)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:407)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:348)
Caused by: org.apache.maven.plugin.PluginResolutionException: Plugin org.eclipse.tycho:tycho-packaging-plugin:2.7.5 or one of its dependencies could not be resolved: The following artifacts could not be resolved: org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 (absent): org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 was not found in https://oss.sonatype.org/content/repositories/public/ during a previous attempt. This failure was cached in the local repository and resolution is not reattempted until the update interval of tycho has elapsed or updates are forced
    at org.apache.maven.plugin.internal.DefaultPluginDependenciesResolver.resolveInternal (DefaultPluginDependenciesResolver.java:233)
    at org.apache.maven.plugin.internal.DefaultPluginDependenciesResolver.resolve (DefaultPluginDependenciesResolver.java:175)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.createPluginRealm (DefaultMavenPluginManager.java:380)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.lambda$setupPluginRealm$1 (DefaultMavenPluginManager.java:343)
    at org.apache.maven.plugin.DefaultPluginRealmCache.lambda$get$0 (DefaultPluginRealmCache.java:156)
    at java.util.concurrent.ConcurrentHashMap.computeIfAbsent (ConcurrentHashMap.java:1740)
    at org.apache.maven.plugin.DefaultPluginRealmCache.get (DefaultPluginRealmCache.java:154)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.setupPluginRealm (DefaultMavenPluginManager.java:342)
    at org.apache.maven.plugin.DefaultBuildPluginManager.getPluginRealm (DefaultBuildPluginManager.java:205)
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:98)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2 (MojoExecutor.java:342)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute (MojoExecutor.java:330)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:213)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:175)
    at org.apache.maven.lifecycle.internal.MojoExecutor.access$000 (MojoExecutor.java:76)
    at org.apache.maven.lifecycle.internal.MojoExecutor$1.run (MojoExecutor.java:163)
    at org.apache.maven.plugin.DefaultMojosExecutionStrategy.execute (DefaultMojosExecutionStrategy.java:39)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:160)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:105)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:73)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:53)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:118)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:261)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:173)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:101)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:910)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:283)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:206)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:77)
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:568)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:283)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:226)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:407)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:348)
Caused by: org.eclipse.aether.resolution.ArtifactResolutionException: The following artifacts could not be resolved: org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 (absent): org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 was not found in https://oss.sonatype.org/content/repositories/public/ during a previous attempt. This failure was cached in the local repository and resolution is not reattempted until the update interval of tycho has elapsed or updates are forced
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve (DefaultArtifactResolver.java:472)
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts (DefaultArtifactResolver.java:260)
    at org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveDependencies (DefaultRepositorySystem.java:352)
    at org.apache.maven.plugin.internal.DefaultPluginDependenciesResolver.resolveInternal (DefaultPluginDependenciesResolver.java:229)
    at org.apache.maven.plugin.internal.DefaultPluginDependenciesResolver.resolve (DefaultPluginDependenciesResolver.java:175)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.createPluginRealm (DefaultMavenPluginManager.java:380)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.lambda$setupPluginRealm$1 (DefaultMavenPluginManager.java:343)
    at org.apache.maven.plugin.DefaultPluginRealmCache.lambda$get$0 (DefaultPluginRealmCache.java:156)
    at java.util.concurrent.ConcurrentHashMap.computeIfAbsent (ConcurrentHashMap.java:1740)
    at org.apache.maven.plugin.DefaultPluginRealmCache.get (DefaultPluginRealmCache.java:154)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.setupPluginRealm (DefaultMavenPluginManager.java:342)
    at org.apache.maven.plugin.DefaultBuildPluginManager.getPluginRealm (DefaultBuildPluginManager.java:205)
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:98)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2 (MojoExecutor.java:342)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute (MojoExecutor.java:330)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:213)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:175)
    at org.apache.maven.lifecycle.internal.MojoExecutor.access$000 (MojoExecutor.java:76)
    at org.apache.maven.lifecycle.internal.MojoExecutor$1.run (MojoExecutor.java:163)
    at org.apache.maven.plugin.DefaultMojosExecutionStrategy.execute (DefaultMojosExecutionStrategy.java:39)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:160)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:105)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:73)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:53)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:118)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:261)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:173)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:101)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:910)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:283)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:206)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:77)
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:568)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:283)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:226)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:407)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:348)
Caused by: org.eclipse.aether.transfer.ArtifactNotFoundException: org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 was not found in https://oss.sonatype.org/content/repositories/public/ during a previous attempt. This failure was cached in the local repository and resolution is not reattempted until the update interval of tycho has elapsed or updates are forced
    at org.eclipse.aether.internal.impl.DefaultUpdateCheckManager.newException (DefaultUpdateCheckManager.java:204)
    at org.eclipse.aether.internal.impl.DefaultUpdateCheckManager.checkArtifact (DefaultUpdateCheckManager.java:167)
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.gatherDownloads (DefaultArtifactResolver.java:585)
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.performDownloads (DefaultArtifactResolver.java:524)
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve (DefaultArtifactResolver.java:448)
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts (DefaultArtifactResolver.java:260)
    at org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveDependencies (DefaultRepositorySystem.java:352)
    at org.apache.maven.plugin.internal.DefaultPluginDependenciesResolver.resolveInternal (DefaultPluginDependenciesResolver.java:229)
    at org.apache.maven.plugin.internal.DefaultPluginDependenciesResolver.resolve (DefaultPluginDependenciesResolver.java:175)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.createPluginRealm (DefaultMavenPluginManager.java:380)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.lambda$setupPluginRealm$1 (DefaultMavenPluginManager.java:343)
    at org.apache.maven.plugin.DefaultPluginRealmCache.lambda$get$0 (DefaultPluginRealmCache.java:156)
    at java.util.concurrent.ConcurrentHashMap.computeIfAbsent (ConcurrentHashMap.java:1740)
    at org.apache.maven.plugin.DefaultPluginRealmCache.get (DefaultPluginRealmCache.java:154)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.setupPluginRealm (DefaultMavenPluginManager.java:342)
    at org.apache.maven.plugin.DefaultBuildPluginManager.getPluginRealm (DefaultBuildPluginManager.java:205)
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:98)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2 (MojoExecutor.java:342)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute (MojoExecutor.java:330)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:213)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:175)
    at org.apache.maven.lifecycle.internal.MojoExecutor.access$000 (MojoExecutor.java:76)
    at org.apache.maven.lifecycle.internal.MojoExecutor$1.run (MojoExecutor.java:163)
    at org.apache.maven.plugin.DefaultMojosExecutionStrategy.execute (DefaultMojosExecutionStrategy.java:39)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:160)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:105)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:73)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:53)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:118)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:261)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:173)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:101)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:910)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:283)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:206)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:77)
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:568)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:283)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:226)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:407)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:348)
[ERROR] Failed to execute goal org.eclipse.tycho:tycho-packaging-plugin:2.7.5:build-qualifier-aggregator (default-build-qualifier-aggregator) on project org.eclipse.jst.enterprise_core.feature: Execution default-build-qualifier-aggregator of goal org.eclipse.tycho:tycho-packaging-plugin:2.7.5:build-qualifier-aggregator failed: Plugin org.eclipse.tycho:tycho-packaging-plugin:2.7.5 or one of its dependencies could not be resolved: The following artifacts could not be resolved: org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 (absent): org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 was not found in https://oss.sonatype.org/content/repositories/public/ during a previous attempt. This failure was cached in the local repository and resolution is not reattempted until the update interval of tycho has elapsed or updates are forced -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.eclipse.tycho:tycho-packaging-plugin:2.7.5:build-qualifier-aggregator (default-build-qualifier-aggregator) on project org.eclipse.jst.enterprise_core.feature: Execution default-build-qualifier-aggregator of goal org.eclipse.tycho:tycho-packaging-plugin:2.7.5:build-qualifier-aggregator failed: Plugin org.eclipse.tycho:tycho-packaging-plugin:2.7.5 or one of its dependencies could not be resolved: The following artifacts could not be resolved: org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 (absent): org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 was not found in https://oss.sonatype.org/content/repositories/public/ during a previous attempt. This failure was cached in the local repository and resolution is not reattempted until the update interval of tycho has elapsed or updates are forced
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2 (MojoExecutor.java:347)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute (MojoExecutor.java:330)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:213)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:175)
    at org.apache.maven.lifecycle.internal.MojoExecutor.access$000 (MojoExecutor.java:76)
    at org.apache.maven.lifecycle.internal.MojoExecutor$1.run (MojoExecutor.java:163)
    at org.apache.maven.plugin.DefaultMojosExecutionStrategy.execute (DefaultMojosExecutionStrategy.java:39)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:160)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:105)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:73)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:53)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:118)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:261)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:173)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:101)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:910)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:283)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:206)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:77)
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:568)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:283)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:226)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:407)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:348)
Caused by: org.apache.maven.plugin.PluginExecutionException: Execution default-build-qualifier-aggregator of goal org.eclipse.tycho:tycho-packaging-plugin:2.7.5:build-qualifier-aggregator failed: Plugin org.eclipse.tycho:tycho-packaging-plugin:2.7.5 or one of its dependencies could not be resolved: The following artifacts could not be resolved: org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 (absent): org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 was not found in https://oss.sonatype.org/content/repositories/public/ during a previous attempt. This failure was cached in the local repository and resolution is not reattempted until the update interval of tycho has elapsed or updates are forced
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:100)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2 (MojoExecutor.java:342)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute (MojoExecutor.java:330)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:213)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:175)
    at org.apache.maven.lifecycle.internal.MojoExecutor.access$000 (MojoExecutor.java:76)
    at org.apache.maven.lifecycle.internal.MojoExecutor$1.run (MojoExecutor.java:163)
    at org.apache.maven.plugin.DefaultMojosExecutionStrategy.execute (DefaultMojosExecutionStrategy.java:39)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:160)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:105)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:73)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:53)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:118)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:261)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:173)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:101)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:910)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:283)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:206)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:77)
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:568)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:283)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:226)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:407)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:348)
Caused by: org.apache.maven.plugin.PluginResolutionException: Plugin org.eclipse.tycho:tycho-packaging-plugin:2.7.5 or one of its dependencies could not be resolved: The following artifacts could not be resolved: org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 (absent): org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 was not found in https://oss.sonatype.org/content/repositories/public/ during a previous attempt. This failure was cached in the local repository and resolution is not reattempted until the update interval of tycho has elapsed or updates are forced
    at org.apache.maven.plugin.internal.DefaultPluginDependenciesResolver.resolveInternal (DefaultPluginDependenciesResolver.java:233)
    at org.apache.maven.plugin.internal.DefaultPluginDependenciesResolver.resolve (DefaultPluginDependenciesResolver.java:175)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.createPluginRealm (DefaultMavenPluginManager.java:380)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.lambda$setupPluginRealm$1 (DefaultMavenPluginManager.java:343)
    at org.apache.maven.plugin.DefaultPluginRealmCache.lambda$get$0 (DefaultPluginRealmCache.java:156)
    at java.util.concurrent.ConcurrentHashMap.computeIfAbsent (ConcurrentHashMap.java:1740)
    at org.apache.maven.plugin.DefaultPluginRealmCache.get (DefaultPluginRealmCache.java:154)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.setupPluginRealm (DefaultMavenPluginManager.java:342)
    at org.apache.maven.plugin.DefaultBuildPluginManager.getPluginRealm (DefaultBuildPluginManager.java:205)
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:98)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2 (MojoExecutor.java:342)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute (MojoExecutor.java:330)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:213)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:175)
    at org.apache.maven.lifecycle.internal.MojoExecutor.access$000 (MojoExecutor.java:76)
    at org.apache.maven.lifecycle.internal.MojoExecutor$1.run (MojoExecutor.java:163)
    at org.apache.maven.plugin.DefaultMojosExecutionStrategy.execute (DefaultMojosExecutionStrategy.java:39)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:160)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:105)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:73)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:53)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:118)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:261)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:173)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:101)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:910)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:283)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:206)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:77)
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:568)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:283)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:226)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:407)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:348)
Caused by: org.eclipse.aether.resolution.ArtifactResolutionException: The following artifacts could not be resolved: org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 (absent): org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 was not found in https://oss.sonatype.org/content/repositories/public/ during a previous attempt. This failure was cached in the local repository and resolution is not reattempted until the update interval of tycho has elapsed or updates are forced
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve (DefaultArtifactResolver.java:472)
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts (DefaultArtifactResolver.java:260)
    at org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveDependencies (DefaultRepositorySystem.java:352)
    at org.apache.maven.plugin.internal.DefaultPluginDependenciesResolver.resolveInternal (DefaultPluginDependenciesResolver.java:229)
    at org.apache.maven.plugin.internal.DefaultPluginDependenciesResolver.resolve (DefaultPluginDependenciesResolver.java:175)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.createPluginRealm (DefaultMavenPluginManager.java:380)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.lambda$setupPluginRealm$1 (DefaultMavenPluginManager.java:343)
    at org.apache.maven.plugin.DefaultPluginRealmCache.lambda$get$0 (DefaultPluginRealmCache.java:156)
    at java.util.concurrent.ConcurrentHashMap.computeIfAbsent (ConcurrentHashMap.java:1740)
    at org.apache.maven.plugin.DefaultPluginRealmCache.get (DefaultPluginRealmCache.java:154)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.setupPluginRealm (DefaultMavenPluginManager.java:342)
    at org.apache.maven.plugin.DefaultBuildPluginManager.getPluginRealm (DefaultBuildPluginManager.java:205)
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:98)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2 (MojoExecutor.java:342)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute (MojoExecutor.java:330)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:213)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:175)
    at org.apache.maven.lifecycle.internal.MojoExecutor.access$000 (MojoExecutor.java:76)
    at org.apache.maven.lifecycle.internal.MojoExecutor$1.run (MojoExecutor.java:163)
    at org.apache.maven.plugin.DefaultMojosExecutionStrategy.execute (DefaultMojosExecutionStrategy.java:39)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:160)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:105)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:73)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:53)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:118)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:261)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:173)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:101)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:910)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:283)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:206)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:77)
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:568)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:283)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:226)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:407)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:348)
Caused by: org.eclipse.aether.transfer.ArtifactNotFoundException: org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 was not found in https://oss.sonatype.org/content/repositories/public/ during a previous attempt. This failure was cached in the local repository and resolution is not reattempted until the update interval of tycho has elapsed or updates are forced
    at org.eclipse.aether.internal.impl.DefaultUpdateCheckManager.newException (DefaultUpdateCheckManager.java:204)
    at org.eclipse.aether.internal.impl.DefaultUpdateCheckManager.checkArtifact (DefaultUpdateCheckManager.java:167)
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.gatherDownloads (DefaultArtifactResolver.java:585)
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.performDownloads (DefaultArtifactResolver.java:524)
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve (DefaultArtifactResolver.java:448)
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts (DefaultArtifactResolver.java:260)
    at org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveDependencies (DefaultRepositorySystem.java:352)
    at org.apache.maven.plugin.internal.DefaultPluginDependenciesResolver.resolveInternal (DefaultPluginDependenciesResolver.java:229)
    at org.apache.maven.plugin.internal.DefaultPluginDependenciesResolver.resolve (DefaultPluginDependenciesResolver.java:175)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.createPluginRealm (DefaultMavenPluginManager.java:380)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.lambda$setupPluginRealm$1 (DefaultMavenPluginManager.java:343)
    at org.apache.maven.plugin.DefaultPluginRealmCache.lambda$get$0 (DefaultPluginRealmCache.java:156)
    at java.util.concurrent.ConcurrentHashMap.computeIfAbsent (ConcurrentHashMap.java:1740)
    at org.apache.maven.plugin.DefaultPluginRealmCache.get (DefaultPluginRealmCache.java:154)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.setupPluginRealm (DefaultMavenPluginManager.java:342)
    at org.apache.maven.plugin.DefaultBuildPluginManager.getPluginRealm (DefaultBuildPluginManager.java:205)
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:98)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2 (MojoExecutor.java:342)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute (MojoExecutor.java:330)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:213)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:175)
    at org.apache.maven.lifecycle.internal.MojoExecutor.access$000 (MojoExecutor.java:76)
    at org.apache.maven.lifecycle.internal.MojoExecutor$1.run (MojoExecutor.java:163)
    at org.apache.maven.plugin.DefaultMojosExecutionStrategy.execute (DefaultMojosExecutionStrategy.java:39)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:160)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:105)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:73)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:53)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:118)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:261)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:173)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:101)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:910)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:283)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:206)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:77)
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:568)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:283)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:226)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:407)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:348)
[ERROR] Failed to execute goal org.eclipse.tycho:tycho-packaging-plugin:2.7.5:build-qualifier-aggregator (default-build-qualifier-aggregator) on project org.eclipse.jst.web_tests.feature: Execution default-build-qualifier-aggregator of goal org.eclipse.tycho:tycho-packaging-plugin:2.7.5:build-qualifier-aggregator failed: Plugin org.eclipse.tycho:tycho-packaging-plugin:2.7.5 or one of its dependencies could not be resolved: The following artifacts could not be resolved: org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 (absent): org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 was not found in https://oss.sonatype.org/content/repositories/public/ during a previous attempt. This failure was cached in the local repository and resolution is not reattempted until the update interval of tycho has elapsed or updates are forced -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.eclipse.tycho:tycho-packaging-plugin:2.7.5:build-qualifier-aggregator (default-build-qualifier-aggregator) on project org.eclipse.jst.web_tests.feature: Execution default-build-qualifier-aggregator of goal org.eclipse.tycho:tycho-packaging-plugin:2.7.5:build-qualifier-aggregator failed: Plugin org.eclipse.tycho:tycho-packaging-plugin:2.7.5 or one of its dependencies could not be resolved: The following artifacts could not be resolved: org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 (absent): org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 was not found in https://oss.sonatype.org/content/repositories/public/ during a previous attempt. This failure was cached in the local repository and resolution is not reattempted until the update interval of tycho has elapsed or updates are forced
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2 (MojoExecutor.java:347)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute (MojoExecutor.java:330)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:213)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:175)
    at org.apache.maven.lifecycle.internal.MojoExecutor.access$000 (MojoExecutor.java:76)
    at org.apache.maven.lifecycle.internal.MojoExecutor$1.run (MojoExecutor.java:163)
    at org.apache.maven.plugin.DefaultMojosExecutionStrategy.execute (DefaultMojosExecutionStrategy.java:39)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:160)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:105)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:73)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:53)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:118)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:261)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:173)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:101)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:910)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:283)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:206)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:77)
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:568)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:283)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:226)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:407)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:348)
Caused by: org.apache.maven.plugin.PluginExecutionException: Execution default-build-qualifier-aggregator of goal org.eclipse.tycho:tycho-packaging-plugin:2.7.5:build-qualifier-aggregator failed: Plugin org.eclipse.tycho:tycho-packaging-plugin:2.7.5 or one of its dependencies could not be resolved: The following artifacts could not be resolved: org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 (absent): org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 was not found in https://oss.sonatype.org/content/repositories/public/ during a previous attempt. This failure was cached in the local repository and resolution is not reattempted until the update interval of tycho has elapsed or updates are forced
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:100)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2 (MojoExecutor.java:342)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute (MojoExecutor.java:330)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:213)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:175)
    at org.apache.maven.lifecycle.internal.MojoExecutor.access$000 (MojoExecutor.java:76)
    at org.apache.maven.lifecycle.internal.MojoExecutor$1.run (MojoExecutor.java:163)
    at org.apache.maven.plugin.DefaultMojosExecutionStrategy.execute (DefaultMojosExecutionStrategy.java:39)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:160)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:105)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:73)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:53)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:118)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:261)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:173)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:101)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:910)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:283)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:206)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:77)
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:568)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:283)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:226)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:407)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:348)
Caused by: org.apache.maven.plugin.PluginResolutionException: Plugin org.eclipse.tycho:tycho-packaging-plugin:2.7.5 or one of its dependencies could not be resolved: The following artifacts could not be resolved: org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 (absent): org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 was not found in https://oss.sonatype.org/content/repositories/public/ during a previous attempt. This failure was cached in the local repository and resolution is not reattempted until the update interval of tycho has elapsed or updates are forced
    at org.apache.maven.plugin.internal.DefaultPluginDependenciesResolver.resolveInternal (DefaultPluginDependenciesResolver.java:233)
    at org.apache.maven.plugin.internal.DefaultPluginDependenciesResolver.resolve (DefaultPluginDependenciesResolver.java:175)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.createPluginRealm (DefaultMavenPluginManager.java:380)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.lambda$setupPluginRealm$1 (DefaultMavenPluginManager.java:343)
    at org.apache.maven.plugin.DefaultPluginRealmCache.lambda$get$0 (DefaultPluginRealmCache.java:156)
    at java.util.concurrent.ConcurrentHashMap.computeIfAbsent (ConcurrentHashMap.java:1740)
    at org.apache.maven.plugin.DefaultPluginRealmCache.get (DefaultPluginRealmCache.java:154)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.setupPluginRealm (DefaultMavenPluginManager.java:342)
    at org.apache.maven.plugin.DefaultBuildPluginManager.getPluginRealm (DefaultBuildPluginManager.java:205)
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:98)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2 (MojoExecutor.java:342)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute (MojoExecutor.java:330)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:213)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:175)
    at org.apache.maven.lifecycle.internal.MojoExecutor.access$000 (MojoExecutor.java:76)
    at org.apache.maven.lifecycle.internal.MojoExecutor$1.run (MojoExecutor.java:163)
    at org.apache.maven.plugin.DefaultMojosExecutionStrategy.execute (DefaultMojosExecutionStrategy.java:39)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:160)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:105)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:73)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:53)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:118)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:261)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:173)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:101)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:910)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:283)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:206)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:77)
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:568)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:283)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:226)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:407)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:348)
Caused by: org.eclipse.aether.resolution.ArtifactResolutionException: The following artifacts could not be resolved: org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 (absent): org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 was not found in https://oss.sonatype.org/content/repositories/public/ during a previous attempt. This failure was cached in the local repository and resolution is not reattempted until the update interval of tycho has elapsed or updates are forced
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve (DefaultArtifactResolver.java:472)
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts (DefaultArtifactResolver.java:260)
    at org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveDependencies (DefaultRepositorySystem.java:352)
    at org.apache.maven.plugin.internal.DefaultPluginDependenciesResolver.resolveInternal (DefaultPluginDependenciesResolver.java:229)
    at org.apache.maven.plugin.internal.DefaultPluginDependenciesResolver.resolve (DefaultPluginDependenciesResolver.java:175)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.createPluginRealm (DefaultMavenPluginManager.java:380)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.lambda$setupPluginRealm$1 (DefaultMavenPluginManager.java:343)
    at org.apache.maven.plugin.DefaultPluginRealmCache.lambda$get$0 (DefaultPluginRealmCache.java:156)
    at java.util.concurrent.ConcurrentHashMap.computeIfAbsent (ConcurrentHashMap.java:1740)
    at org.apache.maven.plugin.DefaultPluginRealmCache.get (DefaultPluginRealmCache.java:154)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.setupPluginRealm (DefaultMavenPluginManager.java:342)
    at org.apache.maven.plugin.DefaultBuildPluginManager.getPluginRealm (DefaultBuildPluginManager.java:205)
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:98)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2 (MojoExecutor.java:342)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute (MojoExecutor.java:330)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:213)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:175)
    at org.apache.maven.lifecycle.internal.MojoExecutor.access$000 (MojoExecutor.java:76)
    at org.apache.maven.lifecycle.internal.MojoExecutor$1.run (MojoExecutor.java:163)
    at org.apache.maven.plugin.DefaultMojosExecutionStrategy.execute (DefaultMojosExecutionStrategy.java:39)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:160)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:105)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:73)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:53)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:118)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:261)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:173)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:101)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:910)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:283)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:206)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:77)
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:568)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:283)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:226)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:407)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:348)
Caused by: org.eclipse.aether.transfer.ArtifactNotFoundException: org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 was not found in https://oss.sonatype.org/content/repositories/public/ during a previous attempt. This failure was cached in the local repository and resolution is not reattempted until the update interval of tycho has elapsed or updates are forced
    at org.eclipse.aether.internal.impl.DefaultUpdateCheckManager.newException (DefaultUpdateCheckManager.java:204)
    at org.eclipse.aether.internal.impl.DefaultUpdateCheckManager.checkArtifact (DefaultUpdateCheckManager.java:167)
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.gatherDownloads (DefaultArtifactResolver.java:585)
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.performDownloads (DefaultArtifactResolver.java:524)
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve (DefaultArtifactResolver.java:448)
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts (DefaultArtifactResolver.java:260)
    at org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveDependencies (DefaultRepositorySystem.java:352)
    at org.apache.maven.plugin.internal.DefaultPluginDependenciesResolver.resolveInternal (DefaultPluginDependenciesResolver.java:229)
    at org.apache.maven.plugin.internal.DefaultPluginDependenciesResolver.resolve (DefaultPluginDependenciesResolver.java:175)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.createPluginRealm (DefaultMavenPluginManager.java:380)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.lambda$setupPluginRealm$1 (DefaultMavenPluginManager.java:343)
    at org.apache.maven.plugin.DefaultPluginRealmCache.lambda$get$0 (DefaultPluginRealmCache.java:156)
    at java.util.concurrent.ConcurrentHashMap.computeIfAbsent (ConcurrentHashMap.java:1740)
    at org.apache.maven.plugin.DefaultPluginRealmCache.get (DefaultPluginRealmCache.java:154)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.setupPluginRealm (DefaultMavenPluginManager.java:342)
    at org.apache.maven.plugin.DefaultBuildPluginManager.getPluginRealm (DefaultBuildPluginManager.java:205)
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:98)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2 (MojoExecutor.java:342)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute (MojoExecutor.java:330)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:213)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:175)
    at org.apache.maven.lifecycle.internal.MojoExecutor.access$000 (MojoExecutor.java:76)
    at org.apache.maven.lifecycle.internal.MojoExecutor$1.run (MojoExecutor.java:163)
    at org.apache.maven.plugin.DefaultMojosExecutionStrategy.execute (DefaultMojosExecutionStrategy.java:39)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:160)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:105)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:73)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:53)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:118)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:261)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:173)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:101)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:910)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:283)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:206)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:77)
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:568)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:283)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:226)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:407)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:348)
[ERROR] Failed to execute goal org.eclipse.tycho:tycho-packaging-plugin:2.7.5:build-qualifier-aggregator (default-build-qualifier-aggregator) on project org.eclipse.jst.web_js_support.feature: Execution default-build-qualifier-aggregator of goal org.eclipse.tycho:tycho-packaging-plugin:2.7.5:build-qualifier-aggregator failed: Plugin org.eclipse.tycho:tycho-packaging-plugin:2.7.5 or one of its dependencies could not be resolved: The following artifacts could not be resolved: org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 (absent): org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 was not found in https://oss.sonatype.org/content/repositories/public/ during a previous attempt. This failure was cached in the local repository and resolution is not reattempted until the update interval of tycho has elapsed or updates are forced -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.eclipse.tycho:tycho-packaging-plugin:2.7.5:build-qualifier-aggregator (default-build-qualifier-aggregator) on project org.eclipse.jst.web_js_support.feature: Execution default-build-qualifier-aggregator of goal org.eclipse.tycho:tycho-packaging-plugin:2.7.5:build-qualifier-aggregator failed: Plugin org.eclipse.tycho:tycho-packaging-plugin:2.7.5 or one of its dependencies could not be resolved: The following artifacts could not be resolved: org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 (absent): org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 was not found in https://oss.sonatype.org/content/repositories/public/ during a previous attempt. This failure was cached in the local repository and resolution is not reattempted until the update interval of tycho has elapsed or updates are forced
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2 (MojoExecutor.java:347)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute (MojoExecutor.java:330)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:213)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:175)
    at org.apache.maven.lifecycle.internal.MojoExecutor.access$000 (MojoExecutor.java:76)
    at org.apache.maven.lifecycle.internal.MojoExecutor$1.run (MojoExecutor.java:163)
    at org.apache.maven.plugin.DefaultMojosExecutionStrategy.execute (DefaultMojosExecutionStrategy.java:39)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:160)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:105)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:73)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:53)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:118)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:261)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:173)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:101)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:910)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:283)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:206)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:77)
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:568)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:283)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:226)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:407)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:348)
Caused by: org.apache.maven.plugin.PluginExecutionException: Execution default-build-qualifier-aggregator of goal org.eclipse.tycho:tycho-packaging-plugin:2.7.5:build-qualifier-aggregator failed: Plugin org.eclipse.tycho:tycho-packaging-plugin:2.7.5 or one of its dependencies could not be resolved: The following artifacts could not be resolved: org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 (absent): org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 was not found in https://oss.sonatype.org/content/repositories/public/ during a previous attempt. This failure was cached in the local repository and resolution is not reattempted until the update interval of tycho has elapsed or updates are forced
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:100)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2 (MojoExecutor.java:342)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute (MojoExecutor.java:330)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:213)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:175)
    at org.apache.maven.lifecycle.internal.MojoExecutor.access$000 (MojoExecutor.java:76)
    at org.apache.maven.lifecycle.internal.MojoExecutor$1.run (MojoExecutor.java:163)
    at org.apache.maven.plugin.DefaultMojosExecutionStrategy.execute (DefaultMojosExecutionStrategy.java:39)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:160)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:105)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:73)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:53)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:118)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:261)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:173)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:101)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:910)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:283)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:206)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:77)
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:568)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:283)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:226)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:407)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:348)
Caused by: org.apache.maven.plugin.PluginResolutionException: Plugin org.eclipse.tycho:tycho-packaging-plugin:2.7.5 or one of its dependencies could not be resolved: The following artifacts could not be resolved: org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 (absent): org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 was not found in https://oss.sonatype.org/content/repositories/public/ during a previous attempt. This failure was cached in the local repository and resolution is not reattempted until the update interval of tycho has elapsed or updates are forced
    at org.apache.maven.plugin.internal.DefaultPluginDependenciesResolver.resolveInternal (DefaultPluginDependenciesResolver.java:233)
    at org.apache.maven.plugin.internal.DefaultPluginDependenciesResolver.resolve (DefaultPluginDependenciesResolver.java:175)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.createPluginRealm (DefaultMavenPluginManager.java:380)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.lambda$setupPluginRealm$1 (DefaultMavenPluginManager.java:343)
    at org.apache.maven.plugin.DefaultPluginRealmCache.lambda$get$0 (DefaultPluginRealmCache.java:156)
    at java.util.concurrent.ConcurrentHashMap.computeIfAbsent (ConcurrentHashMap.java:1740)
    at org.apache.maven.plugin.DefaultPluginRealmCache.get (DefaultPluginRealmCache.java:154)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.setupPluginRealm (DefaultMavenPluginManager.java:342)
    at org.apache.maven.plugin.DefaultBuildPluginManager.getPluginRealm (DefaultBuildPluginManager.java:205)
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:98)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2 (MojoExecutor.java:342)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute (MojoExecutor.java:330)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:213)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:175)
    at org.apache.maven.lifecycle.internal.MojoExecutor.access$000 (MojoExecutor.java:76)
    at org.apache.maven.lifecycle.internal.MojoExecutor$1.run (MojoExecutor.java:163)
    at org.apache.maven.plugin.DefaultMojosExecutionStrategy.execute (DefaultMojosExecutionStrategy.java:39)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:160)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:105)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:73)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:53)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:118)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:261)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:173)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:101)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:910)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:283)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:206)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:77)
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:568)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:283)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:226)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:407)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:348)
Caused by: org.eclipse.aether.resolution.ArtifactResolutionException: The following artifacts could not be resolved: org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 (absent): org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 was not found in https://oss.sonatype.org/content/repositories/public/ during a previous attempt. This failure was cached in the local repository and resolution is not reattempted until the update interval of tycho has elapsed or updates are forced
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve (DefaultArtifactResolver.java:472)
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts (DefaultArtifactResolver.java:260)
    at org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveDependencies (DefaultRepositorySystem.java:352)
    at org.apache.maven.plugin.internal.DefaultPluginDependenciesResolver.resolveInternal (DefaultPluginDependenciesResolver.java:229)
    at org.apache.maven.plugin.internal.DefaultPluginDependenciesResolver.resolve (DefaultPluginDependenciesResolver.java:175)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.createPluginRealm (DefaultMavenPluginManager.java:380)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.lambda$setupPluginRealm$1 (DefaultMavenPluginManager.java:343)
    at org.apache.maven.plugin.DefaultPluginRealmCache.lambda$get$0 (DefaultPluginRealmCache.java:156)
    at java.util.concurrent.ConcurrentHashMap.computeIfAbsent (ConcurrentHashMap.java:1740)
    at org.apache.maven.plugin.DefaultPluginRealmCache.get (DefaultPluginRealmCache.java:154)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.setupPluginRealm (DefaultMavenPluginManager.java:342)
    at org.apache.maven.plugin.DefaultBuildPluginManager.getPluginRealm (DefaultBuildPluginManager.java:205)
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:98)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2 (MojoExecutor.java:342)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute (MojoExecutor.java:330)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:213)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:175)
    at org.apache.maven.lifecycle.internal.MojoExecutor.access$000 (MojoExecutor.java:76)
    at org.apache.maven.lifecycle.internal.MojoExecutor$1.run (MojoExecutor.java:163)
    at org.apache.maven.plugin.DefaultMojosExecutionStrategy.execute (DefaultMojosExecutionStrategy.java:39)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:160)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:105)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:73)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:53)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:118)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:261)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:173)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:101)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:910)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:283)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:206)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:77)
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:568)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:283)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:226)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:407)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:348)
Caused by: org.eclipse.aether.transfer.ArtifactNotFoundException: org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 was not found in https://oss.sonatype.org/content/repositories/public/ during a previous attempt. This failure was cached in the local repository and resolution is not reattempted until the update interval of tycho has elapsed or updates are forced
    at org.eclipse.aether.internal.impl.DefaultUpdateCheckManager.newException (DefaultUpdateCheckManager.java:204)
    at org.eclipse.aether.internal.impl.DefaultUpdateCheckManager.checkArtifact (DefaultUpdateCheckManager.java:167)
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.gatherDownloads (DefaultArtifactResolver.java:585)
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.performDownloads (DefaultArtifactResolver.java:524)
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve (DefaultArtifactResolver.java:448)
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts (DefaultArtifactResolver.java:260)
    at org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveDependencies (DefaultRepositorySystem.java:352)
    at org.apache.maven.plugin.internal.DefaultPluginDependenciesResolver.resolveInternal (DefaultPluginDependenciesResolver.java:229)
    at org.apache.maven.plugin.internal.DefaultPluginDependenciesResolver.resolve (DefaultPluginDependenciesResolver.java:175)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.createPluginRealm (DefaultMavenPluginManager.java:380)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.lambda$setupPluginRealm$1 (DefaultMavenPluginManager.java:343)
    at org.apache.maven.plugin.DefaultPluginRealmCache.lambda$get$0 (DefaultPluginRealmCache.java:156)
    at java.util.concurrent.ConcurrentHashMap.computeIfAbsent (ConcurrentHashMap.java:1740)
    at org.apache.maven.plugin.DefaultPluginRealmCache.get (DefaultPluginRealmCache.java:154)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.setupPluginRealm (DefaultMavenPluginManager.java:342)
    at org.apache.maven.plugin.DefaultBuildPluginManager.getPluginRealm (DefaultBuildPluginManager.java:205)
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:98)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2 (MojoExecutor.java:342)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute (MojoExecutor.java:330)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:213)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:175)
    at org.apache.maven.lifecycle.internal.MojoExecutor.access$000 (MojoExecutor.java:76)
    at org.apache.maven.lifecycle.internal.MojoExecutor$1.run (MojoExecutor.java:163)
    at org.apache.maven.plugin.DefaultMojosExecutionStrategy.execute (DefaultMojosExecutionStrategy.java:39)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:160)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:105)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:73)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:53)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:118)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:261)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:173)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:101)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:910)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:283)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:206)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:77)
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:568)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:283)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:226)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:407)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:348)
[ERROR] Failed to execute goal org.eclipse.tycho:tycho-packaging-plugin:2.7.5:build-qualifier-aggregator (default-build-qualifier-aggregator) on project org.eclipse.jst.web_userdoc.feature: Execution default-build-qualifier-aggregator of goal org.eclipse.tycho:tycho-packaging-plugin:2.7.5:build-qualifier-aggregator failed: Plugin org.eclipse.tycho:tycho-packaging-plugin:2.7.5 or one of its dependencies could not be resolved: The following artifacts could not be resolved: org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 (absent): org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 was not found in https://oss.sonatype.org/content/repositories/public/ during a previous attempt. This failure was cached in the local repository and resolution is not reattempted until the update interval of tycho has elapsed or updates are forced -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.eclipse.tycho:tycho-packaging-plugin:2.7.5:build-qualifier-aggregator (default-build-qualifier-aggregator) on project org.eclipse.jst.web_userdoc.feature: Execution default-build-qualifier-aggregator of goal org.eclipse.tycho:tycho-packaging-plugin:2.7.5:build-qualifier-aggregator failed: Plugin org.eclipse.tycho:tycho-packaging-plugin:2.7.5 or one of its dependencies could not be resolved: The following artifacts could not be resolved: org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 (absent): org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 was not found in https://oss.sonatype.org/content/repositories/public/ during a previous attempt. This failure was cached in the local repository and resolution is not reattempted until the update interval of tycho has elapsed or updates are forced
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2 (MojoExecutor.java:347)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute (MojoExecutor.java:330)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:213)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:175)
    at org.apache.maven.lifecycle.internal.MojoExecutor.access$000 (MojoExecutor.java:76)
    at org.apache.maven.lifecycle.internal.MojoExecutor$1.run (MojoExecutor.java:163)
    at org.apache.maven.plugin.DefaultMojosExecutionStrategy.execute (DefaultMojosExecutionStrategy.java:39)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:160)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:105)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:73)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:53)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:118)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:261)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:173)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:101)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:910)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:283)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:206)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:77)
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:568)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:283)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:226)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:407)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:348)
Caused by: org.apache.maven.plugin.PluginExecutionException: Execution default-build-qualifier-aggregator of goal org.eclipse.tycho:tycho-packaging-plugin:2.7.5:build-qualifier-aggregator failed: Plugin org.eclipse.tycho:tycho-packaging-plugin:2.7.5 or one of its dependencies could not be resolved: The following artifacts could not be resolved: org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 (absent): org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 was not found in https://oss.sonatype.org/content/repositories/public/ during a previous attempt. This failure was cached in the local repository and resolution is not reattempted until the update interval of tycho has elapsed or updates are forced
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:100)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2 (MojoExecutor.java:342)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute (MojoExecutor.java:330)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:213)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:175)
    at org.apache.maven.lifecycle.internal.MojoExecutor.access$000 (MojoExecutor.java:76)
    at org.apache.maven.lifecycle.internal.MojoExecutor$1.run (MojoExecutor.java:163)
    at org.apache.maven.plugin.DefaultMojosExecutionStrategy.execute (DefaultMojosExecutionStrategy.java:39)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:160)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:105)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:73)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:53)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:118)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:261)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:173)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:101)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:910)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:283)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:206)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:77)
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:568)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:283)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:226)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:407)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:348)
Caused by: org.apache.maven.plugin.PluginResolutionException: Plugin org.eclipse.tycho:tycho-packaging-plugin:2.7.5 or one of its dependencies could not be resolved: The following artifacts could not be resolved: org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 (absent): org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 was not found in https://oss.sonatype.org/content/repositories/public/ during a previous attempt. This failure was cached in the local repository and resolution is not reattempted until the update interval of tycho has elapsed or updates are forced
    at org.apache.maven.plugin.internal.DefaultPluginDependenciesResolver.resolveInternal (DefaultPluginDependenciesResolver.java:233)
    at org.apache.maven.plugin.internal.DefaultPluginDependenciesResolver.resolve (DefaultPluginDependenciesResolver.java:175)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.createPluginRealm (DefaultMavenPluginManager.java:380)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.lambda$setupPluginRealm$1 (DefaultMavenPluginManager.java:343)
    at org.apache.maven.plugin.DefaultPluginRealmCache.lambda$get$0 (DefaultPluginRealmCache.java:156)
    at java.util.concurrent.ConcurrentHashMap.computeIfAbsent (ConcurrentHashMap.java:1740)
    at org.apache.maven.plugin.DefaultPluginRealmCache.get (DefaultPluginRealmCache.java:154)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.setupPluginRealm (DefaultMavenPluginManager.java:342)
    at org.apache.maven.plugin.DefaultBuildPluginManager.getPluginRealm (DefaultBuildPluginManager.java:205)
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:98)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2 (MojoExecutor.java:342)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute (MojoExecutor.java:330)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:213)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:175)
    at org.apache.maven.lifecycle.internal.MojoExecutor.access$000 (MojoExecutor.java:76)
    at org.apache.maven.lifecycle.internal.MojoExecutor$1.run (MojoExecutor.java:163)
    at org.apache.maven.plugin.DefaultMojosExecutionStrategy.execute (DefaultMojosExecutionStrategy.java:39)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:160)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:105)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:73)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:53)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:118)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:261)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:173)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:101)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:910)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:283)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:206)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:77)
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:568)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:283)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:226)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:407)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:348)
Caused by: org.eclipse.aether.resolution.ArtifactResolutionException: The following artifacts could not be resolved: org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 (absent): org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 was not found in https://oss.sonatype.org/content/repositories/public/ during a previous attempt. This failure was cached in the local repository and resolution is not reattempted until the update interval of tycho has elapsed or updates are forced
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve (DefaultArtifactResolver.java:472)
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts (DefaultArtifactResolver.java:260)
    at org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveDependencies (DefaultRepositorySystem.java:352)
    at org.apache.maven.plugin.internal.DefaultPluginDependenciesResolver.resolveInternal (DefaultPluginDependenciesResolver.java:229)
    at org.apache.maven.plugin.internal.DefaultPluginDependenciesResolver.resolve (DefaultPluginDependenciesResolver.java:175)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.createPluginRealm (DefaultMavenPluginManager.java:380)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.lambda$setupPluginRealm$1 (DefaultMavenPluginManager.java:343)
    at org.apache.maven.plugin.DefaultPluginRealmCache.lambda$get$0 (DefaultPluginRealmCache.java:156)
    at java.util.concurrent.ConcurrentHashMap.computeIfAbsent (ConcurrentHashMap.java:1740)
    at org.apache.maven.plugin.DefaultPluginRealmCache.get (DefaultPluginRealmCache.java:154)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.setupPluginRealm (DefaultMavenPluginManager.java:342)
    at org.apache.maven.plugin.DefaultBuildPluginManager.getPluginRealm (DefaultBuildPluginManager.java:205)
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:98)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2 (MojoExecutor.java:342)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute (MojoExecutor.java:330)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:213)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:175)
    at org.apache.maven.lifecycle.internal.MojoExecutor.access$000 (MojoExecutor.java:76)
    at org.apache.maven.lifecycle.internal.MojoExecutor$1.run (MojoExecutor.java:163)
    at org.apache.maven.plugin.DefaultMojosExecutionStrategy.execute (DefaultMojosExecutionStrategy.java:39)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:160)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:105)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:73)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:53)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:118)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:261)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:173)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:101)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:910)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:283)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:206)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:77)
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:568)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:283)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:226)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:407)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:348)
Caused by: org.eclipse.aether.transfer.ArtifactNotFoundException: org.eclipse.tycho:tycho-buildtimestamp-jgit:jar:2.7.5 was not found in https://oss.sonatype.org/content/repositories/public/ during a previous attempt. This failure was cached in the local repository and resolution is not reattempted until the update interval of tycho has elapsed or updates are forced
    at org.eclipse.aether.internal.impl.DefaultUpdateCheckManager.newException (DefaultUpdateCheckManager.java:204)
    at org.eclipse.aether.internal.impl.DefaultUpdateCheckManager.checkArtifact (DefaultUpdateCheckManager.java:167)
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.gatherDownloads (DefaultArtifactResolver.java:585)
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.performDownloads (DefaultArtifactResolver.java:524)
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve (DefaultArtifactResolver.java:448)
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts (DefaultArtifactResolver.java:260)
    at org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveDependencies (DefaultRepositorySystem.java:352)
    at org.apache.maven.plugin.internal.DefaultPluginDependenciesResolver.resolveInternal (DefaultPluginDependenciesResolver.java:229)
    at org.apache.maven.plugin.internal.DefaultPluginDependenciesResolver.resolve (DefaultPluginDependenciesResolver.java:175)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.createPluginRealm (DefaultMavenPluginManager.java:380)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.lambda$setupPluginRealm$1 (DefaultMavenPluginManager.java:343)
    at org.apache.maven.plugin.DefaultPluginRealmCache.lambda$get$0 (DefaultPluginRealmCache.java:156)
    at java.util.concurrent.ConcurrentHashMap.computeIfAbsent (ConcurrentHashMap.java:1740)
    at org.apache.maven.plugin.DefaultPluginRealmCache.get (DefaultPluginRealmCache.java:154)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.setupPluginRealm (DefaultMavenPluginManager.java:342)
    at org.apache.maven.plugin.DefaultBuildPluginManager.getPluginRealm (DefaultBuildPluginManager.java:205)
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:98)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2 (MojoExecutor.java:342)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute (MojoExecutor.java:330)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:213)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:175)
    at org.apache.maven.lifecycle.internal.MojoExecutor.access$000 (MojoExecutor.java:76)
    at org.apache.maven.lifecycle.internal.MojoExecutor$1.run (MojoExecutor.java:163)
    at org.apache.maven.plugin.DefaultMojosExecutionStrategy.execute (DefaultMojosExecutionStrategy.java:39)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:160)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:105)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:73)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:53)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:118)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:261)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:173)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:101)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:910)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:283)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:206)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:77)
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:568)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:283)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:226)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:407)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:348)
[ERROR] 
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/PluginResolutionException
[ERROR] 
[ERROR] After correcting the problems, you can resume the build with the command
[ERROR]   mvn <args> -rf :org.eclipse.wst.command.env.core
Build step 'Invoke top-level Maven targets' marked build as failure
Taking screenshot.
[webtools-webservices-gerrit_master] $ echo $XAUTHORITY
/home/jenkins/agent/workspace/webtools-webservices-gerrit_master/.Xauthority-17249475652543813662
[webtools-webservices-gerrit_master] $ ls -l $XAUTHORITY
-rw-r--r--. 1 jenkins 1000750000 0 Aug  1 23:08 /home/jenkins/agent/workspace/webtools-webservices-gerrit_master/.Xauthority-17249475652543813662
[webtools-webservices-gerrit_master] $ import -window root -display :61 screenshot.jpg
Terminating xvnc.

Tue Aug  1 23:11:57 2023
 ComparingUpdateTracker: 0 pixels in / 0 pixels out
 ComparingUpdateTracker: (1:-nan ratio)
Recording test results
ERROR: Step ‘Publish JUnit test result report’ failed: No test report files were found. Configuration error?
Finished: FAILURE