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RC3 - new workspace, 5.0 is default compliance and 5.0 JRE is default - enable 'fill argument names' - do code assist and select ArrayList - breakpoint in GenericJavaTypeProposal, linme 308: Type parameters are returned but do not exist. package test; import java.util.ArrayList; public class E { Object o= new ArrayL|code assist } !ENTRY org.eclipse.jdt.ui 4 10001 2005-06-22 13:04:21.03 !MESSAGE Internal Error !STACK 1 Java Model Exception: Java Model Status [<E> [in ArrayList [in ArrayList.class [in java.util [in C:\devel\jdk1.5.0_03\jre\lib\rt.jar [in Test]]]]] does not exist] at org.eclipse.jdt.internal.core.JavaElement.newNotPresentException(JavaElement.java:468) at org.eclipse.jdt.internal.core.JavaElement.openWhenClosed(JavaElement.java:499) at org.eclipse.jdt.internal.core.JavaElement.getElementInfo(JavaElement.java:232) at org.eclipse.jdt.internal.core.JavaElement.getElementInfo(JavaElement.java:218) at org.eclipse.jdt.internal.core.TypeParameter.getBounds(TypeParameter.java:36) at org.eclipse.jdt.internal.ui.text.java.GenericJavaTypeProposal.computeTypeProposal(GenericJavaTypeProposal.java:367) at org.eclipse.jdt.internal.ui.text.java.GenericJavaTypeProposal.computeTypeArgumentProposals(GenericJavaTypeProposal.java:349) at org.eclipse.jdt.internal.ui.text.java.GenericJavaTypeProposal.apply(GenericJavaTypeProposal.java:225) at org.eclipse.jdt.internal.ui.text.java.LazyJavaCompletionProposal.apply(LazyJavaCompletionProposal.java:320) at org.eclipse.jface.text.contentassist.CompletionProposalPopup.insertProposal(CompletionProposalPopup.java:447) at org.eclipse.jface.text.contentassist.CompletionProposalPopup.selectProposalWithMask(CompletionProposalPopup.java:398) at org.eclipse.jface.text.contentassist.CompletionProposalPopup.verifyKey(CompletionProposalPopup.java:777) at org.eclipse.jface.text.contentassist.ContentAssistant$InternalListener.verifyKey(ContentAssistant.java:630) at org.eclipse.jface.text.TextViewer$VerifyKeyListenersManager.verifyKey(TextViewer.java:415) at org.eclipse.swt.custom.StyledTextListener.handleEvent(StyledTextListener.java:55) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:844) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:868) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:853) at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:661) at org.eclipse.swt.custom.StyledText.handleKeyDown(StyledText.java:5133) at org.eclipse.swt.custom.StyledText$7.handleEvent(StyledText.java:4868) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:844) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:868) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:853) at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:881) at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:877) at org.eclipse.swt.widgets.Widget.wmChar(Widget.java:1189) at org.eclipse.swt.widgets.Control.WM_CHAR(Control.java:3134) at org.eclipse.swt.widgets.Control.windowProc(Control.java:3037) at org.eclipse.swt.widgets.Display.windowProc(Display.java:3694) at org.eclipse.swt.internal.win32.OS.DispatchMessageW(Native Method) at org.eclipse.swt.internal.win32.OS.DispatchMessage(OS.java:1656) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2701) 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:585) 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) !SUBENTRY 1 org.eclipse.jdt.core 4 969 2005-06-22 13:04:21.03 !MESSAGE <E> [in ArrayList [in ArrayList.class [in java.util [in C:\devel\jdk1.5.0_03\jre\lib\rt.jar [in Test]]]]] does not exist
this bug is not always reproducable. It seem that the Java model is in a certain state, where the element infos can't be found. I had it working on a new workspace, but after changing to Object o= new ArrayList(); Object t= new List The problem was there again.
To get it again, I also removed the import for java.util.List
I cannot reproduce with N20050622 + latest JDT Core
still reproducable in 20050623-0010 - start with new workspace (runs on JRE 1.5.0_03) - open preference page: (JRE 1.5.0_03) was detected - set the workspace compiler compliance to 5.0 - enable 'fill argument names..' on Java > Editor > Code Assist - ok (full build yes (of course useless) - create project 'Test' - create type 'E' in test - paste code from comment 0 - code assist, works (<E> added), complete to new ArrayList<E>(); - type Object x= new Li code assist, select java.util.List - no <E>, Exception in log !SESSION 2005-06-23 12:50:49.962 ----------------------------------------------- eclipse.buildId=N20050623-0010 java.version=1.5.0_03 java.vendor=Sun Microsystems Inc. BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=de_CH Framework arguments: -application org.eclipse.ui.ide.workbench -update -showlocation Command-line arguments: -ws win32 -application org.eclipse.ui.ide.workbench -update -debug -showlocation -data d:\eclipse-testpass3 !ENTRY org.eclipse.jdt.ui 4 10001 2005-06-23 12:52:20.791 !MESSAGE Internal Error !STACK 1 Java Model Exception: Java Model Status [<E> [in List [in List.class [in java.util [in C:\devel\jdk1.5.0_03\jre\lib\rt.jar [in Test]]]]] does not exist] at org.eclipse.jdt.internal.core.JavaElement.newNotPresentException(JavaElement.java:468) at org.eclipse.jdt.internal.core.JavaElement.openWhenClosed(JavaElement.java:499) at org.eclipse.jdt.internal.core.JavaElement.getElementInfo(JavaElement.java:232) at org.eclipse.jdt.internal.core.JavaElement.getElementInfo(JavaElement.java:218) at org.eclipse.jdt.internal.core.TypeParameter.getBounds(TypeParameter.java:36) at org.eclipse.jdt.internal.ui.text.java.GenericJavaTypeProposal.computeTypeProposal(GenericJavaTypeProposal.java:367)
Reproduced. This happens when a binary type parameter is opened but its parent has not been opened yet.
Created attachment 26308 [details] Fix
Created attachment 26309 [details] Regression test
+1 for 3.1.1
Released fix and regression test in both HEAD and R3_1_maintenance branch.
Verified in I20050920-0010 for 3.2M2
Verified for 3.1.1 using M20050923-1430.
