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Create a JSP using the standard template. Then, from that file, perform a Save As... and create a new file. Once you do this, you should get an NPE: java.lang.NullPointerException at org.eclipse.jst.jsp.core.internal.modelquery.TaglibModelQueryExtension.getAvailableElementContent(TaglibModelQueryExtension.java:45) at org.eclipse.wst.xml.core.internal.contentmodel.internal.modelqueryimpl.ModelQueryExtensionManagerImpl.filterAvailableElementContent(ModelQueryExtensionManagerImpl.java:100) at org.eclipse.wst.xml.core.internal.contentmodel.modelqueryimpl.ModelQueryImpl.getAvailableContent(ModelQueryImpl.java:312) at org.eclipse.wst.html.core.internal.modelquery.HTMLModelQueryImpl.getAvailableContent(HTMLModelQueryImpl.java:48) at org.eclipse.jst.jsp.core.internal.modelquery.JSPModelQueryImpl.getAvailableContent(JSPModelQueryImpl.java:90) at org.eclipse.wst.xml.ui.views.contentoutline.XMLContentOutlineConfiguration$AttributeShowingLabelProvider.getText(XMLContentOutlineConfiguration.java:101) at org.eclipse.jface.viewers.ColumnLabelProvider.update(ColumnLabelProvider.java:36) at org.eclipse.jface.viewers.ViewerColumn.refresh(ViewerColumn.java:145) at org.eclipse.jface.viewers.AbstractTreeViewer.doUpdateItem(AbstractTreeViewer.java:931) at org.eclipse.jface.viewers.AbstractTreeViewer$UpdateItemSafeRunnable.run(AbstractTreeViewer.java:102) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42) at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:49) at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:175) at org.eclipse.jface.viewers.AbstractTreeViewer.doUpdateItem(AbstractTreeViewer.java:1011) at org.eclipse.jface.viewers.StructuredViewer$UpdateItemSafeRunnable.run(StructuredViewer.java:481) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42) at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:49) at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:175) at org.eclipse.jface.viewers.StructuredViewer.updateItem(StructuredViewer.java:2111) at org.eclipse.jface.viewers.AbstractTreeViewer.createTreeItem(AbstractTreeViewer.java:826) at org.eclipse.jface.viewers.AbstractTreeViewer$1.run(AbstractTreeViewer.java:801) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70) at org.eclipse.jface.viewers.AbstractTreeViewer.createChildren(AbstractTreeViewer.java:775) at org.eclipse.jface.viewers.TreeViewer.createChildren(TreeViewer.java:639) at org.eclipse.jface.viewers.AbstractTreeViewer.internalInitializeTree(AbstractTreeViewer.java:1489) at org.eclipse.jface.viewers.TreeViewer.internalInitializeTree(TreeViewer.java:828) at org.eclipse.jface.viewers.AbstractTreeViewer$5.run(AbstractTreeViewer.java:1473) at org.eclipse.jface.viewers.StructuredViewer.preservingSelection(StructuredViewer.java:1392) at org.eclipse.jface.viewers.TreeViewer.preservingSelection(TreeViewer.java:402) at org.eclipse.jface.viewers.StructuredViewer.preservingSelection(StructuredViewer.java:1353) at org.eclipse.jface.viewers.AbstractTreeViewer.inputChanged(AbstractTreeViewer.java:1466) at org.eclipse.jface.viewers.ContentViewer.setInput(ContentViewer.java:274) at org.eclipse.jface.viewers.StructuredViewer.setInput(StructuredViewer.java:1634) at org.eclipse.wst.sse.ui.internal.contentoutline.ConfigurableContentOutlinePage.setInput(ConfigurableContentOutlinePage.java:664) at org.eclipse.wst.sse.ui.internal.contentoutline.ConfigurableContentOutlinePage.setConfiguration(ConfigurableContentOutlinePage.java:639) at org.eclipse.wst.sse.ui.StructuredTextEditor.update(StructuredTextEditor.java:2688) at org.eclipse.wst.sse.ui.StructuredTextEditor.setModel(StructuredTextEditor.java:2627) at org.eclipse.wst.sse.ui.StructuredTextEditor.doSetInput(StructuredTextEditor.java:1664) at org.eclipse.ui.texteditor.AbstractTextEditor.setInputWithNotify(AbstractTextEditor.java:4105) at org.eclipse.ui.texteditor.AbstractTextEditor.setInput(AbstractTextEditor.java:4127) at org.eclipse.ui.texteditor.AbstractDecoratedTextEditor.performSaveAs(AbstractDecoratedTextEditor.java:1535) at org.eclipse.ui.texteditor.AbstractTextEditor.doSaveAs(AbstractTextEditor.java:4602) at org.eclipse.ui.internal.SaveAsAction.run(SaveAsAction.java:64) at org.eclipse.jface.action.Action.runWithEvent(Action.java:498) at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:584) at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:501) at org.eclipse.jface.action.ActionContributionItem$5.handleEvent(ActionContributionItem.java:411) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1002) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3902) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3495) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2404) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2368) at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2220) at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:500) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:493) 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:194) 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:367) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179) 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.equinox.launcher.Main.invokeFramework(Main.java:611) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:566) at org.eclipse.equinox.launcher.Main.run(Main.java:1363)
Created attachment 150298 [details] Fix Patch Adds null check. It seems its possible for there not to be a manager yet at key points in time, such as when doing a save as and creating a new document.
Released the changes but removed the unused import that was added. Thanks.
*** Bug 293909 has been marked as a duplicate of this bug. ***
