Bug 251281

Description Axel Kratel 2008-10-17 16:32:52 EDT

Build ID: Eclipse Platform  Version: 3.4.1 Build id: M20080911-1700

Steps To Reproduce:
1. Double click on build.xml in a module in the workspace
2. Look at tab where the file is supposed to open, just get a stack trace.

It's a difficult issue to reproduce. it seems to be tied to running a diff with CVS (Compare with latest from HEAD). Or after running a "Build with Ant". 

The work around is to stop eclipse and then start it up again. It's very annoying after a while. 


More information:
java.lang.ClassCastException: org.apache.xerces.parsers.XML11Configuration
	at org.apache.xerces.parsers.SAXParser.<init>(Unknown Source)
	at org.apache.xerces.parsers.SAXParser.<init>(Unknown Source)
	at org.apache.xerces.jaxp.SAXParserImpl.<init>(Unknown Source)
	at org.apache.xerces.jaxp.SAXParserFactoryImpl.newSAXParser(Unknown Source)
	at org.apache.tools.ant.util.JAXPUtils.newSAXParser(JAXPUtils.java:215)
	at org.apache.tools.ant.util.JAXPUtils.getNamespaceXMLReader(JAXPUtils.java:172)
	at org.apache.tools.ant.helper.ProjectHelper2.parse(ProjectHelper2.java:185)
	at org.apache.tools.ant.helper.ProjectHelper2.parseUnknownElement(ProjectHelper2.java:86)
	at org.apache.tools.ant.taskdefs.Antlib.createAntlib(Antlib.java:75)
	at org.apache.tools.ant.taskdefs.Definer.loadAntlib(Definer.java:429)
	at org.apache.tools.ant.taskdefs.Definer.execute(Definer.java:281)
	at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
	at org.eclipse.ant.internal.ui.model.AntDefiningTaskNode.configure(AntDefiningTaskNode.java:86)
	at org.eclipse.ant.internal.ui.model.AntModel.resolveBuildfile(AntModel.java:504)
	at org.eclipse.ant.internal.ui.model.AntModel.resolveBuildfile(AntModel.java:506)
	at org.eclipse.ant.internal.ui.model.AntModel.parseDocument(AntModel.java:329)
	at org.eclipse.ant.internal.ui.model.AntModel.reconcile(AntModel.java:265)
	at org.eclipse.ant.internal.ui.model.AntModel.getProjectNode(AntModel.java:1386)
	at org.eclipse.ant.internal.ui.model.AntModel.getProjectNode(AntModel.java:1396)
	at org.eclipse.ant.internal.ui.editor.text.AntFoldingStructureProvider.updateFoldingRegions(AntFoldingStructureProvider.java:88)
	at org.eclipse.ant.internal.ui.editor.AntEditor.projectionEnabled(AntEditor.java:1243)
	at org.eclipse.jface.text.source.projection.ProjectionViewer.fireProjectionEnabled(ProjectionViewer.java:480)
	at org.eclipse.jface.text.source.projection.ProjectionViewer.enableProjection(ProjectionViewer.java:528)
	at org.eclipse.jface.text.source.projection.ProjectionViewer.doOperation(ProjectionViewer.java:1413)
	at org.eclipse.ant.internal.ui.editor.AntEditor$StatusLineSourceViewer.doOperation(AntEditor.java:215)
	at org.eclipse.ant.internal.ui.editor.AntEditor.createPartControl(AntEditor.java:971)
	at org.eclipse.ui.internal.EditorReference.createPartHelper(EditorReference.java:661)
	at org.eclipse.ui.internal.EditorReference.createPart(EditorReference.java:428)
	at org.eclipse.ui.internal.WorkbenchPartReference.getPart(WorkbenchPartReference.java:594)
	at org.eclipse.ui.internal.EditorReference.getEditor(EditorReference.java:266)
	at org.eclipse.ui.internal.EditorManager.findEditor(EditorManager.java:403)
	at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditorBatched(WorkbenchPage.java:2766)
	at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor(WorkbenchPage.java:2729)
	at org.eclipse.ui.internal.WorkbenchPage.access$11(WorkbenchPage.java:2721)
	at org.eclipse.ui.internal.WorkbenchPage$10.run(WorkbenchPage.java:2673)
	at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
	at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2668)
	at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2652)
	at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2643)
	at org.eclipse.ui.ide.IDE.openEditor(IDE.java:646)
	at org.eclipse.ui.ide.IDE.openEditor(IDE.java:605)
	at org.eclipse.jdt.internal.ui.javaeditor.EditorUtility.openInEditor(EditorUtility.java:318)
	at org.eclipse.jdt.internal.ui.javaeditor.EditorUtility.openInEditor(EditorUtility.java:160)
	at org.eclipse.jdt.ui.actions.OpenAction.run(OpenAction.java:228)
	at org.eclipse.jdt.ui.actions.OpenAction.run(OpenAction.java:207)
	at org.eclipse.jdt.ui.actions.SelectionDispatchAction.dispatchRun(SelectionDispatchAction.java:274)
	at org.eclipse.jdt.ui.actions.SelectionDispatchAction.run(SelectionDispatchAction.java:250)
	at org.eclipse.jdt.internal.ui.packageview.PackageExplorerActionGroup.handleOpen(PackageExplorerActionGroup.java:363)
	at org.eclipse.jdt.internal.ui.packageview.PackageExplorerPart$5.open(PackageExplorerPart.java:603)
	at org.eclipse.jface.viewers.StructuredViewer$2.run(StructuredViewer.java:820)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37)
	at org.eclipse.core.runtime.Platform.run(Platform.java:880)
	at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:48)
	at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:175)
	at org.eclipse.jface.viewers.StructuredViewer.fireOpen(StructuredViewer.java:818)
	at org.eclipse.jface.viewers.StructuredViewer.handleOpen(StructuredViewer.java:1079)
	at org.eclipse.jface.viewers.StructuredViewer$6.handleOpen(StructuredViewer.java:1183)
	at org.eclipse.jface.util.OpenStrategy.fireOpenEvent(OpenStrategy.java:263)
	at org.eclipse.jface.util.OpenStrategy.access$2(OpenStrategy.java:257)
	at org.eclipse.jface.util.OpenStrategy$1.handleEvent(OpenStrategy.java:297)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1003)
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3823)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3422)
	at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2382)
	at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2346)
	at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2198)
	at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:493)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:288)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:488)
	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:193)
	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:386)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
	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.equinox.launcher.Main.invokeFramework(Main.java:549)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:504)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1236)