org.jboss.tools.common.model.ui.test.ModelUiAllTests has been failing for 4 builds:

http://hudson.qa.jboss.com/hudson/view/DevStudio/job/jbosstools-nightly-3.1.x/lastCompletedBuild/testReport/%28root%29/ModelUiAllTests/testOpenJarProperties/

java.lang.NullPointerException
at org.eclipse.ui.wizards.datatransfer.ImportOperation.importFile(ImportOperation.java:521)
at org.eclipse.ui.wizards.datatransfer.ImportOperation.importRecursivelyFrom(ImportOperation.java:713)
at org.eclipse.ui.wizards.datatransfer.ImportOperation.execute(ImportOperation.java:374)
at org.eclipse.ui.actions.WorkspaceModifyOperation$1.run(WorkspaceModifyOperation.java:106)
at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:1800)
at org.eclipse.ui.actions.WorkspaceModifyOperation.run(WorkspaceModifyOperation.java:118)
at org.jboss.tools.test.util.ResourcesUtils.importProjectIntoWorkspace(ResourcesUtils.java:233)
at org.jboss.tools.test.util.ResourcesUtils.importProject(ResourcesUtils.java:57)
at org.jboss.tools.test.util.ResourcesUtils.importProject(ResourcesUtils.java:159)
at org.jboss.tools.common.test.util.TestProjectProvider.<init>(TestProjectProvider.java:62)
at org.jboss.tools.common.model.ui.jarproperties.JarPropertiesTest.setUp(JarPropertiesTest.java:30)
at org.eclipse.test.EclipseTestRunner.run(EclipseTestRunner.java:354)
at org.eclipse.test.EclipseTestRunner.run(EclipseTestRunner.java:206)
at org.eclipse.test.UITestApplication$3.run(UITestApplication.java:195)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:134)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3468)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3115)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2405)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2369)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2221)
at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:500)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:493)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:113)
at org.eclipse.test.UITestApplication.runApplication(UITestApplication.java:138)
at org.eclipse.test.UITestApplication.run(UITestApplication.java:60)
at org.eclipse.test.UITestApplication.start(UITestApplication.java:210)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:194)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:368)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:559)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:514)
at org.eclipse.equinox.launcher.Main.run(Main.java:1311)
at org.eclipse.equinox.launcher.Main.main(Main.java:1287)
at org.eclipse.core.launcher.Main.main(Main.java:34)