Description Jerome JADOULLE 2005-08-11 09:18:59 EDT

When using eclipse 3.1 on a project where I use the java 1.5 syntax, i
encountered a very annoying problem with the content assist: it crashes each
time I call it and produces an exception (nullPointerException).

If i close the project and try the content assist on another project, it works
fine.  It seems that the content assist crashes while "reading" my code in order
to be able to produce its assist window.

Note that there are no compilation error in the project.

the logFile outputs the following text:

!ENTRY org.eclipse.ui 4 4 2005-08-11 11:50:28.660
!MESSAGE Unhandled event loop exception

!ENTRY org.eclipse.ui 4 0 2005-08-11 11:50:28.660
!MESSAGE java.lang.NullPointerException
!STACK 0
java.lang.NullPointerException
	at
org.eclipse.jdt.internal.compiler.lookup.ReferenceBinding.implementsInterface(ReferenceBinding.java:681)
	at
org.eclipse.jdt.internal.compiler.lookup.ReferenceBinding.isCompatibleWith(ReferenceBinding.java:766)
	at
org.eclipse.jdt.internal.compiler.lookup.TypeVariableBinding.boundCheck(TypeVariableBinding.java:135)
	at
org.eclipse.jdt.internal.compiler.lookup.ParameterizedTypeBinding.boundCheck(ParameterizedTypeBinding.java:58)
	at
org.eclipse.jdt.internal.compiler.ast.ParameterizedSingleTypeReference.checkBounds(ParameterizedSingleTypeReference.java:40)
	at
org.eclipse.jdt.internal.compiler.lookup.ClassScope.checkParameterizedTypeBounds(ClassScope.java:707)
	at
org.eclipse.jdt.internal.compiler.lookup.ClassScope.connectTypeHierarchy(ClassScope.java:935)
	at
org.eclipse.jdt.internal.compiler.lookup.CompilationUnitScope.connectTypeHierarchy(CompilationUnitScope.java:254)
	at
org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.completeTypeBindings(LookupEnvironment.java:249)
	at org.eclipse.jdt.internal.codeassist.impl.Engine.accept(Engine.java:92)
	at
org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.askForType(LookupEnvironment.java:131)
	at
org.eclipse.jdt.internal.compiler.lookup.PackageBinding.getTypeOrPackage(PackageBinding.java:178)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.getTypeOrPackage(Scope.java:2392)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.getType(Scope.java:2137)
	at
org.eclipse.jdt.internal.compiler.ast.SingleTypeReference.getTypeBinding(SingleTypeReference.java:39)
	at
org.eclipse.jdt.internal.compiler.ast.TypeReference.resolveType(TypeReference.java:141)
	at
org.eclipse.jdt.internal.compiler.ast.TypeReference.resolveTypeArgument(TypeReference.java:158)
	at
org.eclipse.jdt.internal.compiler.ast.ParameterizedSingleTypeReference.internalResolveType(ParameterizedSingleTypeReference.java:132)
	at
org.eclipse.jdt.internal.compiler.ast.ParameterizedSingleTypeReference.resolveType(ParameterizedSingleTypeReference.java:217)
	at
org.eclipse.jdt.internal.compiler.ast.TypeReference.resolveSuperType(TypeReference.java:104)
	at
org.eclipse.jdt.internal.compiler.lookup.ClassScope.findSupertype(ClassScope.java:1088)
	at
org.eclipse.jdt.internal.compiler.lookup.ClassScope.connectSuperInterfaces(ClassScope.java:837)
	at
org.eclipse.jdt.internal.compiler.lookup.ClassScope.connectTypeHierarchy(ClassScope.java:928)
	at
org.eclipse.jdt.internal.compiler.lookup.CompilationUnitScope.connectTypeHierarchy(CompilationUnitScope.java:254)
	at
org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.completeTypeBindings(LookupEnvironment.java:249)
	at
org.eclipse.jdt.internal.codeassist.SelectionEngine.select(SelectionEngine.java:660)
	at org.eclipse.jdt.internal.core.Openable.codeSelect(Openable.java:165)
	at
org.eclipse.jdt.internal.core.CompilationUnit.codeSelect(CompilationUnit.java:314)
	at
org.eclipse.jdt.internal.core.CompilationUnit.codeSelect(CompilationUnit.java:308)
	at
org.eclipse.jdt.internal.ui.javaeditor.JavaElementHyperlinkDetector.detectHyperlinks(JavaElementHyperlinkDetector.java:73)
	at
org.eclipse.jface.text.hyperlink.HyperlinkManager.findHyperlinks(HyperlinkManager.java:232)
	at
org.eclipse.jface.text.hyperlink.HyperlinkManager.mouseMove(HyperlinkManager.java:419)
	at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:145)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:843)
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3080)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2713)
	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(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	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)

also note that, even after cleaning the project, rebuilding, shutting the
computer down,... the problem stays the same BUT IS LIMITED TO a specific
project, where I use Java 1.5 syntax (generics,...).

Finally, note that I am also using Java 1.5 syntax for other projects but no
problem is found...