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Build Identifier: M20100211-1343 Today I checked for updates using the Update Manager and it proposed to install something like a JDT patch to support Groovy language. However, since then, when I start Eclipse I now get a ClassNotFoundException for org.codehaus.jdt.groovy.integration.internal.GroovyLanguageSupport. I don't need Groovy and, if Eclipse does, I think it should take care of the necessary dependencies... Reproducible: Always Steps to Reproduce: 1. start Eclipse 2. in the Error Log I find the following: eclipse.buildId= java.version=1.6.0_18 java.vendor=Sun Microsystems Inc. BootLoader constants: OS=win32, ARCH=x86_64, WS=win32, NL=it_IT Command-line arguments: -os win32 -ws win32 -arch x86_64 Error Thu Apr 08 12:41:01 CEST 2010 Error creating Groovy language support java.lang.ClassNotFoundException: org.codehaus.jdt.groovy.integration.internal.GroovyLanguageSupport at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:494) at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:410) at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:398) at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:105) at java.lang.ClassLoader.loadClass(Unknown Source) at org.eclipse.osgi.internal.loader.BundleLoader.loadClass(BundleLoader.java:326) at org.eclipse.osgi.framework.internal.core.BundleHost.loadClass(BundleHost.java:231) at org.eclipse.osgi.framework.internal.core.AbstractBundle.loadClass(AbstractBundle.java:1193) at org.codehaus.jdt.groovy.integration.LanguageSupportFactory.tryInstantiate(LanguageSupportFactory.java:122) at org.codehaus.jdt.groovy.integration.LanguageSupportFactory.getLanguageSupport(LanguageSupportFactory.java:95) at org.codehaus.jdt.groovy.integration.LanguageSupportFactory.newCompilationUnit(LanguageSupportFactory.java:62) at org.eclipse.jdt.internal.core.PackageFragment.buildStructure(PackageFragment.java:92) at org.eclipse.jdt.internal.core.Openable.generateInfos(Openable.java:258) at org.eclipse.jdt.internal.core.JavaElement.openWhenClosed(JavaElement.java:515) at org.eclipse.jdt.internal.core.JavaElement.getElementInfo(JavaElement.java:252) at org.eclipse.jdt.internal.core.JavaElement.getElementInfo(JavaElement.java:238) at org.eclipse.jdt.internal.core.PackageFragment.containsJavaResources(PackageFragment.java:126) at org.eclipse.jdt.internal.ui.packageview.PackageExplorerContentProvider.isEmpty(PackageExplorerContentProvider.java:505) at org.eclipse.jdt.internal.ui.packageview.PackageExplorerContentProvider.getFolded(PackageExplorerContentProvider.java:494) at org.eclipse.jdt.internal.ui.packageview.PackageExplorerContentProvider.getHierarchicalPackageChildren(PackageExplorerContentProvider.java:430) at org.eclipse.jdt.internal.ui.packageview.PackageExplorerContentProvider.getPackageContent(PackageExplorerContentProvider.java:254) at org.eclipse.jdt.ui.StandardJavaElementContentProvider.getChildren(StandardJavaElementContentProvider.java:189) at org.eclipse.jdt.internal.ui.packageview.PackageExplorerContentProvider.getChildren(PackageExplorerContentProvider.java:301) at org.eclipse.jdt.internal.ui.packageview.WorkingSetAwareContentProvider.getChildren(WorkingSetAwareContentProvider.java:87) at org.eclipse.jface.viewers.AbstractTreeViewer.getRawChildren(AbstractTreeViewer.java:1352) at org.eclipse.jface.viewers.TreeViewer.getRawChildren(TreeViewer.java:390) at org.eclipse.jdt.internal.ui.viewsupport.ProblemTreeViewer.hasFilteredChildren(ProblemTreeViewer.java:255) at org.eclipse.jdt.internal.ui.packageview.PackageExplorerPart$PackageExplorerProblemTreeViewer.isEssential(PackageExplorerPart.java:290) at org.eclipse.jdt.internal.ui.packageview.PackageExplorerPart$PackageExplorerProblemTreeViewer.isFiltered(PackageExplorerPart.java:276) at org.eclipse.jdt.internal.ui.viewsupport.ProblemTreeViewer.containsNonFiltered(ProblemTreeViewer.java:291) at org.eclipse.jdt.internal.ui.viewsupport.ProblemTreeViewer.hasFilteredChildren(ProblemTreeViewer.java:256) at org.eclipse.jdt.internal.ui.viewsupport.ProblemTreeViewer.isExpandable(ProblemTreeViewer.java:244) at org.eclipse.jface.viewers.AbstractTreeViewer.isExpandable(AbstractTreeViewer.java:2109) at org.eclipse.jface.viewers.AbstractTreeViewer.updatePlus(AbstractTreeViewer.java:2791) at org.eclipse.jface.viewers.TreeViewer.updatePlus(TreeViewer.java:847) at org.eclipse.jface.viewers.AbstractTreeViewer.createTreeItem(AbstractTreeViewer.java:828) at org.eclipse.jface.viewers.AbstractTreeViewer$1.run(AbstractTreeViewer.java:802) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70) at org.eclipse.jface.viewers.AbstractTreeViewer.createChildren(AbstractTreeViewer.java:776) at org.eclipse.jface.viewers.TreeViewer.createChildren(TreeViewer.java:639) at org.eclipse.jface.viewers.AbstractTreeViewer.internalExpand(AbstractTreeViewer.java:1585) at org.eclipse.jface.viewers.AbstractTreeViewer.internalExpand(AbstractTreeViewer.java:1582) at org.eclipse.jface.viewers.AbstractTreeViewer.setSelectionToWidget(AbstractTreeViewer.java:2463) at org.eclipse.jface.viewers.StructuredViewer.setSelectionToWidget(StructuredViewer.java:1711) at org.eclipse.jface.viewers.AbstractTreeViewer.setSelectionToWidget(AbstractTreeViewer.java:2903) at org.eclipse.jface.viewers.StructuredViewer.setSelection(StructuredViewer.java:1667) at org.eclipse.jface.viewers.TreeViewer.setSelection(TreeViewer.java:1124) at org.eclipse.jdt.internal.ui.packageview.PackageExplorerPart.showInput(PackageExplorerPart.java:1050) at org.eclipse.jdt.internal.ui.packageview.PackageExplorerPart.editorActivated(PackageExplorerPart.java:999) at org.eclipse.jdt.internal.ui.packageview.PackageExplorerPart.setLinkingEnabled(PackageExplorerPart.java:1271) at org.eclipse.jdt.internal.ui.packageview.PackageExplorerPart.createPartControl(PackageExplorerPart.java:548) at org.eclipse.ui.internal.ViewReference.createPartHelper(ViewReference.java:367) at org.eclipse.ui.internal.ViewReference.createPart(ViewReference.java:226) at org.eclipse.ui.internal.WorkbenchPartReference.getPart(WorkbenchPartReference.java:595) at org.eclipse.ui.internal.WorkbenchPage$ActivationList.setActive(WorkbenchPage.java:4212) at org.eclipse.ui.internal.WorkbenchPage$18.runWithException(WorkbenchPage.java:3271) at org.eclipse.ui.internal.StartupThreading$StartupRunnable.run(StartupThreading.java:31) 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:3885) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3506) at org.eclipse.ui.application.WorkbenchAdvisor.openWindows(WorkbenchAdvisor.java:803) at org.eclipse.ui.internal.Workbench$28.runWithException(Workbench.java:1384) at org.eclipse.ui.internal.StartupThreading$StartupRunnable.run(StartupThreading.java:31) 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:3885) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3506) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2316) 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.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 sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) 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)
This looks like a problem with the groovy plugins. Closing as NOT_ECLIPSE. Please report the problem to the groovy team.
Ok, sorry, it seems that something (maybe the latest Spring IDE plugin) has installed "JDT Core patch for Groovy-Eclipse plugin" on my system by simply doing a "Check for updates" (not "Install new software"!) and I thought this were something by the JDT team rather than the Groovy Eclipse plugin team. I do not use Groovy, I do not need it and I never installed the Groovy Eclipse plugin on my system... So I just uninstalled it now, although I'm quite surprised that Eclipse didn't complain about some broken dependency (why p2 requested its installation if it doesn't seem to be needed by any other plugin in my system?). This is why I was confused. Mauro.
My guess is that this JDT patch doesn't define its dependencies the way it should. You might want to check it to make sure that p2 doesn't have a bug. If dependencies look ok, then you should report a bug against p2. Otherwise you should report a bug against groovy for not specifying the right dependencies.
Verified for 3.6M7.
