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Home » Eclipse Projects » Eclipse Platform » Cannot open input element(Text editor does not have a document provider)
Cannot open input element [message #524480] Thu, 01 April 2010 06:34
Milind is currently offline MilindFriend
Messages: 31
Registered: April 2010
Member
Hi,

I created common navigator for my GMF RCP application. When trying to view the diagram file created inside a project it is throwing the following error.
:Text Editor does not have a document provider"

If the same diagram file is created in the workspace, it is getting displayed. When it is inside a proeject under the workspace it is not getting displayed.

Following is the stack trace:

java.lang.NullPointerException
at org.eclipse.gmf.runtime.diagram.ui.resources.editor.parts.Di agramDocumentEditor$1.run(DiagramDocumentEditor.java:131)
at org.eclipse.jface.operation.ModalContext.runInCurrentThread( ModalContext.java:464)
at org.eclipse.jface.operation.ModalContext.run(ModalContext.ja va:372)
at org.eclipse.jface.window.ApplicationWindow$1.run(Application Window.java:759)
at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator .java:70)
at org.eclipse.jface.window.ApplicationWindow.run(ApplicationWi ndow.java:756)
at org.eclipse.ui.internal.WorkbenchWindow.run(WorkbenchWindow. java:2579)
at org.eclipse.gmf.runtime.diagram.ui.resources.editor.parts.Di agramDocumentEditor.init(DiagramDocumentEditor.java:140)
at org.eclipse.ui.internal.EditorManager.createSite(EditorManag er.java:798)
at org.eclipse.ui.internal.EditorReference.createPartHelper(Edi torReference.java:644)
at org.eclipse.ui.internal.EditorReference.createPart(EditorRef erence.java:462)
at org.eclipse.ui.internal.WorkbenchPartReference.getPart(Workb enchPartReference.java:595)
at org.eclipse.ui.internal.PartPane.setVisible(PartPane.java:31 3)
at org.eclipse.ui.internal.presentations.PresentablePart.setVis ible(PresentablePart.java:180)
at org.eclipse.ui.internal.presentations.util.PresentablePartFo lder.select(PresentablePartFolder.java:270)
at org.eclipse.ui.internal.presentations.util.LeftToRightTabOrd er.select(LeftToRightTabOrder.java:65)
at org.eclipse.ui.internal.presentations.util.TabbedStackPresen tation.selectPart(TabbedStackPresentation.java:473)
at org.eclipse.ui.internal.PartStack.refreshPresentationSelecti on(PartStack.java:1256)
at org.eclipse.ui.internal.PartStack.setSelection(PartStack.jav a:1209)
at org.eclipse.ui.internal.PartStack.showPart(PartStack.java:16 08)
at org.eclipse.ui.internal.PartStack.add(PartStack.java:499)
at org.eclipse.ui.internal.EditorStack.add(EditorStack.java:103 )
at org.eclipse.ui.internal.PartStack.add(PartStack.java:485)
at org.eclipse.ui.internal.EditorStack.add(EditorStack.java:112 )
at org.eclipse.ui.internal.EditorSashContainer.addEditor(Editor SashContainer.java:63)
at org.eclipse.ui.internal.EditorAreaHelper.addToLayout(EditorA reaHelper.java:225)
at org.eclipse.ui.internal.EditorAreaHelper.addEditor(EditorAre aHelper.java:213)
at org.eclipse.ui.internal.EditorManager.createEditorTab(Editor Manager.java:778)
at org.eclipse.ui.internal.EditorManager.openEditorFromDescript or(EditorManager.java:677)
at org.eclipse.ui.internal.EditorManager.openEditor(EditorManag er.java:638)
at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditorBatched( WorkbenchPage.java:2854)
at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor(Workben chPage.java:2762)
at org.eclipse.ui.internal.WorkbenchPage.access$11(WorkbenchPag e.java:2754)
at org.eclipse.ui.internal.WorkbenchPage$10.run(WorkbenchPage.j ava:2705)
at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator .java:70)
at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPa ge.java:2701)
at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPa ge.java:2685)
at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPa ge.java:2676)
at org.eclipse.ui.ide.IDE.openEditor(IDE.java:651)
at org.eclipse.ui.ide.IDE.openEditor(IDE.java:610)
at org.eclipse.ui.actions.OpenFileAction.openFile(OpenFileActio n.java:99)
at org.eclipse.ui.actions.OpenSystemEditorAction.run(OpenSystem EditorAction.java:99)
at org.eclipse.ui.actions.RetargetAction.run(RetargetAction.jav a:221)
at org.eclipse.ui.navigator.CommonNavigatorManager$3.open(Commo nNavigatorManager.java:202)
at org.eclipse.ui.OpenAndLinkWithEditorHelper$InternalListener. open(OpenAndLinkWithEditorHelper.java:48)
at org.eclipse.jface.viewers.StructuredViewer$2.run(StructuredV iewer.java:842)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
at org.eclipse.core.runtime.Platform.run(Platform.java:888)
at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:48)
at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:17 5)
at org.eclipse.jface.viewers.StructuredViewer.fireOpen(Structur edViewer.java:840)
at org.eclipse.jface.viewers.StructuredViewer.handleOpen(Struct uredViewer.java:1101)
at org.eclipse.ui.navigator.CommonViewer.handleOpen(CommonViewe r.java:467)
at org.eclipse.jface.viewers.StructuredViewer$6.handleOpen(Stru cturedViewer.java:1205)
at org.eclipse.jface.util.OpenStrategy.fireOpenEvent(OpenStrate gy.java:264)
at org.eclipse.jface.util.OpenStrategy.access$2(OpenStrategy.ja va:258)
at org.eclipse.jface.util.OpenStrategy$1.handleEvent(OpenStrate gy.java:298)
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.ja va:3880)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java :3473)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.jav a:2405)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2369)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:22 21)
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(Work bench.java:493)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.j ava:149)
at com.bt.pmf.prodtool.billingtariff.diagram.application.Prodto olApplication.start(ProdtoolApplication.java:19)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(Eclips eAppHandle.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(EclipseS tarter.java:368)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseS tarter.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: 559)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:514)
at org.eclipse.equinox.launcher.Main.run(Main.java:1311)
at org.eclipse.equinox.launcher.Main.main(Main.java:1287)


Could anyone know what should be done for viewing the diagram file inside a project structure
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