Regression
org.eclipse.wst.jsdt.ui.tests.contentassist.ClosureTests.testClosures_SameFile_EmptyLine (from org.eclipse.wst.jsdt.ui.tests.JSDTUITests)
Error Message
Unable to open JS editor: class org.eclipse.ui.internal.genericeditor.ExtensionBasedTextEditor
Stacktrace
junit.framework.AssertionFailedError: Unable to open JS editor: class org.eclipse.ui.internal.genericeditor.ExtensionBasedTextEditor at org.eclipse.wst.jsdt.ui.tests.contentassist.ClosureTests.testClosures_SameFile_EmptyLine(ClosureTests.java:65)