Description LI Daobing 2010-11-02 02:16:10 EDT

What steps will reproduce the problem?
1. 
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-- Error Details --
Date: Tue Nov 02 14:10:24 CST 2010
Message: Unable to create editor ID org.eclipse.compare.CompareEditor: An unexpected exception was thrown.
Severity: Error
Product: Eclipse 1.3.1.20100913-1228 (org.eclipse.epp.package.java.product)
Plugin: org.eclipse.ui
Session Data:
eclipse.buildId=M20100909-0800
java.version=1.6.0_18
java.vendor=Sun Microsystems Inc.
BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US
Framework arguments:  -product org.eclipse.epp.package.java.product
Command-line arguments:  -os linux -ws gtk -arch x86_64 -product org.eclipse.epp.package.java.product


Exception Stack Trace:
java.lang.NullPointerException
at org.eclipse.php.internal.core.format.FormatPreferencesSupport.verifyValidity(FormatPreferencesSupport.java:100)
at org.eclipse.php.internal.core.format.FormatPreferencesSupport.getIndentationChar(FormatPreferencesSupport.java:89)
at org.eclipse.php.internal.ui.editor.configuration.PHPStructuredTextViewerConfiguration.getIndentPrefixes(PHPStructuredTextViewerConfiguration.java:448)
at org.eclipse.wst.sse.ui.internal.StructuredTextViewer.configure(StructuredTextViewer.java:311)
at org.eclipse.php.internal.ui.compare.MergeSourceViewer.configure(MergeSourceViewer.java:542)
at org.eclipse.php.internal.ui.compare.TextMergeViewer$ContributorInfo.internalSetDocument(TextMergeViewer.java:546)
at org.eclipse.php.internal.ui.compare.TextMergeViewer$ContributorInfo.setDocument(TextMergeViewer.java:434)
at org.eclipse.php.internal.ui.compare.TextMergeViewer.updateContent(TextMergeViewer.java:2569)
at org.eclipse.php.internal.ui.compare.ContentMergeViewer.internalRefresh(ContentMergeViewer.java:814)
at org.eclipse.php.internal.ui.compare.ContentMergeViewer.inputChanged(ContentMergeViewer.java:704)
at org.eclipse.jface.viewers.ContentViewer.setInput(ContentViewer.java:274)
at org.eclipse.compare.CompareViewerSwitchingPane.setInput(CompareViewerSwitchingPane.java:276)
at org.eclipse.compare.internal.CompareContentViewerSwitchingPane.setInput(CompareContentViewerSwitchingPane.java:158)
at org.eclipse.compare.CompareEditorInput.internalSetContentPaneInput(CompareEditorInput.java:844)
at org.eclipse.compare.CompareEditorInput.access$8(CompareEditorInput.java:842)
at org.eclipse.compare.CompareEditorInput$11.run(CompareEditorInput.java:778)
at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
at org.eclipse.compare.CompareEditorInput.feed1(CompareEditorInput.java:772)
at org.eclipse.compare.CompareEditorInput.feedInput(CompareEditorInput.java:750)
at org.eclipse.compare.CompareEditorInput.createContents(CompareEditorInput.java:554)
at org.eclipse.compare.internal.CompareEditor.createCompareControl(CompareEditor.java:456)
at org.eclipse.compare.internal.CompareEditor.createPartControl(CompareEditor.java:414)
at org.eclipse.ui.internal.EditorReference.createPartHelper(EditorReference.java:670)
at org.eclipse.ui.internal.EditorReference.createPart(EditorReference.java:465)
at org.eclipse.ui.internal.WorkbenchPartReference.getPart(WorkbenchPartReference.java:595)
at org.eclipse.ui.internal.EditorReference.getEditor(EditorReference.java:289)
at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditorBatched(WorkbenchPage.java:2863)
at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor(WorkbenchPage.java:2768)
at org.eclipse.ui.internal.WorkbenchPage.access$11(WorkbenchPage.java:2760)
at org.eclipse.ui.internal.WorkbenchPage$10.run(WorkbenchPage.java:2711)
at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2707)
at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2691)
at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2682)
at org.eclipse.compare.internal.CompareUIPlugin$1.run(CompareUIPlugin.java:518)
at org.eclipse.compare.internal.CompareUIPlugin.syncExec(CompareUIPlugin.java:1258)
at org.eclipse.compare.internal.CompareUIPlugin.internalOpenEditor(CompareUIPlugin.java:529)
at org.eclipse.compare.internal.CompareUIPlugin.openCompareEditor(CompareUIPlugin.java:491)
at org.eclipse.compare.CompareUI.openCompareEditorOnPage(CompareUI.java:168)
at org.eclipse.compare.CompareUI.openCompareEditor(CompareUI.java:137)
at org.eclipse.compare.CompareUI.openCompareEditor(CompareUI.java:121)
at org.eclipse.team.svn.ui.compare.ResourceCompareInput.openCompareEditor(ResourceCompareInput.java:117)
at org.eclipse.team.svn.ui.operation.CompareResourcesInternalOperation$4$1.run(CompareResourcesInternalOperation.java:175)
at org.eclipse.ui.internal.UILockListener.doPendingWork(UILockListener.java:164)
at org.eclipse.ui.internal.UISynchronizer$3.run(UISynchronizer.java:158)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:134)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3515)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3164)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2640)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2604)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2438)
at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:671)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:664)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:115)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
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:369)
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:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:616)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:619)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:574)
at org.eclipse.equinox.launcher.Main.run(Main.java:1407)
at org.eclipse.equinox.launcher.Main.main(Main.java:1383)