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I am unable to utilize any form of the "AddUnimplementedMethodsOperation" when the interface/superclass I implement/extend is located within a .jar file. This occurs both from the "New Class" wizard, and the Code Assist "add unimplemented abstract methods" option. The relevent messages from the eclipse log file are as follows: !ENTRY org.eclipse.ui 4 4 2005-09-01 10:20:14.234 !MESSAGE Unhandled event loop exception !ENTRY org.eclipse.ui 4 0 2005-09-01 10:20:14.235 !MESSAGE Failed to execute runnable (java.lang.NullPointerException) !STACK 0 org.eclipse.swt.SWTException: Failed to execute runnable (java.lang.NullPointerException) at org.eclipse.swt.SWT.error(SWT.java:2942) at org.eclipse.swt.SWT.error(SWT.java:2865) at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:126) at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:2844) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2575) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:1699) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1663) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:367) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:143) at org.eclipse.ui.internal.ide.IDEApplication.run(IDEApplication.java:103) at org.eclipse.core.internal.runtime.PlatformActivator$1.run(PlatformActivator.java:226) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:376) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:163) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:324) at org.eclipse.core.launcher.Main.invokeFramework(Main.java:334) at org.eclipse.core.launcher.Main.basicRun(Main.java:278) at org.eclipse.core.launcher.Main.run(Main.java:973) at org.eclipse.core.launcher.Main.main(Main.java:948) Caused by: java.lang.NullPointerException at org.eclipse.jdt.core.dom.TypeBinding.getPackageFragment(TypeBinding.java:599) at org.eclipse.jdt.core.dom.TypeBinding.getClassFile(TypeBinding.java:111) at org.eclipse.jdt.core.dom.TypeBinding.getUnresolvedJavaElement(TypeBinding.java:400) at org.eclipse.jdt.core.dom.TypeBinding.getUnresolvedJavaElement(TypeBinding.java:377) at org.eclipse.jdt.core.dom.TypeBinding.getJavaElement(TypeBinding.java:370) at org.eclipse.jdt.core.dom.MethodBinding.getUnresolvedJavaElement(MethodBinding.java:168) at org.eclipse.jdt.core.dom.MethodBinding.getJavaElement(MethodBinding.java:161) at org.eclipse.jdt.internal.corext.codemanipulation.StubUtility2.suggestArgumentNames(StubUtility2.java:930) at org.eclipse.jdt.internal.corext.codemanipulation.StubUtility2.createParameters(StubUtility2.java:534) at org.eclipse.jdt.internal.corext.codemanipulation.StubUtility2.createImplementationStub(StubUtility2.java:380) at org.eclipse.jdt.internal.ui.text.correction.UnimplementedMethodsCompletionProposal.getRewrite(UnimplementedMethodsCompletionProposal.java: 78) at org.eclipse.jdt.internal.ui.text.correction.ASTRewriteCorrectionProposal.addEdits(ASTRewriteCorrectionProposal.java:61) at org.eclipse.jdt.internal.ui.text.correction.CUCorrectionProposal.initializeTextChange(CUCorrectionProposal.java:141) at org.eclipse.jdt.internal.ui.text.correction.UnimplementedMethodsCompletionProposal.getAdditionalProposalInfo(UnimplementedMethodsCompletio nProposal.java:89) at org.eclipse.jface.text.contentassist.AdditionalInfoController.computeInformation(AdditionalInfoController.java:221) at org.eclipse.jface.text.AbstractInformationControlManager.doShowInformation(AbstractInformationControlManager.java:820) at org.eclipse.jface.text.AbstractInformationControlManager.showInformation(AbstractInformationControlManager.java:810) at org.eclipse.jface.text.contentassist.AdditionalInfoController$1.run(AdditionalInfoController.java:173) at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35) at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:123) ... 18 more
As an aside, this problem does *not* occur if I copy the actual .java file into the project I am working in. It only occurs when referencing a .class file in a .jar. I have also tried removing my .metadata directory and re-importing the project, to no avail.
Could you please provide steps to reproduce? Also we need the build id. I tried with java.lang.Runnable and it works fine.
I've just figured out what the problem was: The project I was having the problem in had a name containing '[]' characters, whereas all other projects did not. Renaming the project without [] characters causes eclipse to behaviour normally in seemingly all cases now. Version: 3.1.0 Build id: I20050627-1435
Thanks for the report. Problem was the ']' character. It is used as a separator for type parameters in the memento. Fixed by adding this character to be escaped in JavaElement#escapeMementoName(...). Added regression test MementoTests#testProjectMemento3().
Verified in I20050920-0010 for 3.2M2
