Started by user roman.grigoriadi@oracle.com Checkout:workspace / /home/hudson/genie.yasson/.hudson/jobs/yasson-release/workspace - hudson.remoting.LocalChannel@44fb3437 Using strategy: Default Git Exe: git Last Built Revision: Revision 1070c5c4fbdfdfd542587d892f29c9b4e504e11a (origin/master) Checkout:workspace / /home/hudson/genie.yasson/.hudson/jobs/yasson-release/workspace - hudson.remoting.LocalChannel@44fb3437 Cloning the remote Git repository Cloning repository origin Fetching upstream changes from https://github.com/eclipse/yasson.git Commencing build of Revision 1070c5c4fbdfdfd542587d892f29c9b4e504e11a (origin/master) Checking out Revision 1070c5c4fbdfdfd542587d892f29c9b4e504e11a (origin/master) FATAL: Could not checkout master with start point 1070c5c4fbdfdfd542587d892f29c9b4e504e11a hudson.plugins.git.GitException: Could not checkout master with start point 1070c5c4fbdfdfd542587d892f29c9b4e504e11a at hudson.plugins.git.GitAPI.checkoutBranch(GitAPI.java:920) at hudson.plugins.git.GitSCM$1.invoke(GitSCM.java:873) at hudson.plugins.git.GitSCM$1.invoke(GitSCM.java:856) at hudson.FilePath.act(FilePath.java:793) at hudson.FilePath.act(FilePath.java:775) at hudson.plugins.git.GitSCM.getBuildConfig(GitSCM.java:856) at hudson.plugins.git.GitSCM.checkout(GitSCM.java:817) at hudson.model.AbstractProject.checkout(AbstractProject.java:1558) at hudson.model.AbstractBuild$AbstractRunner.checkout(AbstractBuild.java:607) at hudson.model.AbstractBuild$AbstractRunner.run(AbstractBuild.java:518) at hudson.model.Run.run(Run.java:1495) at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:44) at hudson.model.ResourceController.execute(ResourceController.java:82) at hudson.model.Executor.run(Executor.java:137) Caused by: org.eclipse.jgit.api.errors.RefAlreadyExistsException: Ref master already exists at org.eclipse.jgit.api.CreateBranchCommand.call(CreateBranchCommand.java:133) at org.eclipse.jgit.api.CheckoutCommand.call(CheckoutCommand.java:222) at hudson.plugins.git.GitAPI.checkoutBranch(GitAPI.java:912) ... 13 more