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20021001 In presence of duplicate entries on the CP, there seem to be little/no refresh of the CP markers. auto-build is off. e.g. 1. create project P with src source folder. 2. edit its .classpath file <?xml version="1.0" encoding="UTF-8"?> <classpath> <classpathentry kind="src" path="src"/> <classpathentry kind="src" path="src2"/> <classpathentry kind="src" path="src3"/> <classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/> <classpathentry kind="output" path="bin"/> </classpath> 3. observe 2 errors are signaled (missing src2 and src3) 4. revert .classpath file to initial content <?xml version="1.0" encoding="UTF-8"?> <classpath> <classpathentry kind="src" path="src"/> <classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/> <classpathentry kind="output" path="bin"/> </classpath> 5. observe the CP marker go away 6. now change the .classpath file as follows <?xml version="1.0" encoding="UTF-8"?> <classpath> <classpathentry kind="src" path="src"/> <classpathentry kind="src" path="src"/> <classpathentry kind="src" path="src3"/> <classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/> <classpathentry kind="output" path="bin"/> </classpath> 7. observe no CP marker is generated (should be a duplicate one and still missing src3). ======= When forcing manual build actions, symptoms are changing a little bit, but still not satisfactory.
You get the following stack trace on step 6: !ENTRY org.eclipse.jdt.core 4 4 Oct 08, 2002 18:17:33.87 !MESSAGE Could not set classpath for /Test !STACK 1 Java Model Exception: Java Model Status [Cannot nest entry /Test/src inside entry /Test/src.] at org.eclipse.jdt.internal.core.JavaModelOperation.execute (JavaModelOperation.java:322) at org.eclipse.jdt.internal.core.JavaModelOperation.run (JavaModelOperation.java:620) at org.eclipse.core.internal.resources.Workspace.run (Workspace.java:1378) at org.eclipse.jdt.internal.core.JavaElement.runOperation (JavaElement.java:563) at org.eclipse.jdt.internal.core.JavaProject.setRawClasspath (JavaProject.java:2238) at org.eclipse.jdt.internal.core.DeltaProcessor.reconcileClasspathFileUpdate (DeltaProcessor.java:1293) at org.eclipse.jdt.internal.core.DeltaProcessor.performPreBuildCheck (DeltaProcessor.java:1106) at org.eclipse.jdt.internal.core.DeltaProcessor.performPreBuildCheck (DeltaProcessor.java:1120) at org.eclipse.jdt.internal.core.DeltaProcessor.performPreBuildCheck (DeltaProcessor.java:1120) at org.eclipse.jdt.internal.core.DeltaProcessor.resourceChanged (DeltaProcessor.java:1429) at org.eclipse.core.internal.events.NotificationManager$1.run (NotificationManager.java:128) at org.eclipse.core.internal.runtime.InternalPlatform.run (InternalPlatform.java:839) at org.eclipse.core.runtime.Platform.run(Platform.java:413) at org.eclipse.core.internal.events.NotificationManager.notify (NotificationManager.java:143) at org.eclipse.core.internal.events.NotificationManager.broadcastChanges (NotificationManager.java:67) at org.eclipse.core.internal.resources.Workspace.broadcastChanges (Workspace.java:133) at org.eclipse.core.internal.resources.Workspace.endOperation (Workspace.java:742) at org.eclipse.core.internal.resources.Workspace.run (Workspace.java:1383) at org.eclipse.ui.actions.WorkspaceModifyOperation.run (WorkspaceModifyOperation.java:78) at org.eclipse.ui.texteditor.AbstractTextEditor.performSaveOperation (AbstractTextEditor.java:2413) at org.eclipse.ui.texteditor.AbstractTextEditor.doSave (AbstractTextEditor.java:2267) at org.eclipse.ui.internal.EditorManager$11.run(EditorManager.java:1005) at org.eclipse.ui.internal.EditorManager$8.run(EditorManager.java:874) at org.eclipse.jface.operation.ModalContext.runInCurrentThread (ModalContext.java:299) at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:249) at org.eclipse.jface.window.ApplicationWindow$1.run (ApplicationWindow.java:394) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:66) at org.eclipse.jface.window.ApplicationWindow.run (ApplicationWindow.java:391) at org.eclipse.ui.internal.WorkbenchWindow.run (WorkbenchWindow.java:1117) at org.eclipse.ui.internal.EditorManager.runProgressMonitorOperation (EditorManager.java:880) at org.eclipse.ui.internal.EditorManager.saveEditor (EditorManager.java:1010) at org.eclipse.ui.internal.WorkbenchPage.saveEditor (WorkbenchPage.java:2012) at org.eclipse.ui.internal.SaveAction.run(SaveAction.java:32) at org.eclipse.jface.action.Action.runWithEvent(Action.java:749) at org.eclipse.ui.internal.registry.AcceleratorScope$AcceleratorAction.run (AcceleratorScope.java:289) at org.eclipse.ui.internal.registry.AcceleratorScope.processKey (AcceleratorScope.java:249) at org.eclipse.ui.internal.KeyBindingMenu$3.handleEvent (KeyBindingMenu.java:90) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:77) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:833) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:1622) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:1368) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:1272) at org.eclipse.ui.internal.Workbench.run(Workbench.java:1255) at org.eclipse.core.internal.boot.InternalBootLoader.run (InternalBootLoader.java:775) at org.eclipse.core.boot.BootLoader.run(BootLoader.java:462) 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.basicRun(Main.java:247) at org.eclipse.core.launcher.Main.run(Main.java:703) at org.eclipse.core.launcher.Main.main(Main.java:539)
First problem was with JavaConventions.validateClasspath() that returned the wrong status for duplicate entries ("Cannot nest entry" instead of "Name collision"). Second problem was that DeltaProcessor.reconcileClasspathFileUpdate() was not handling the JavaModelException correctly. It now creates a marker and don't log the exception. Added regression test ClasspathTests.testDuplicateEntries()
Verified.
