[jbosstools-issues] [JBoss JIRA] Created: (JBIDE-2565) NPE when deleting a pages.xml entry

[Georg Sendt (JIRA)]

NPE when deleting a pages.xml entry
-----------------------------------

                 Key: JBIDE-2565
                 URL: https://jira.jboss.org/jira/browse/JBIDE-2565
             Project: Tools (JBoss Tools)
          Issue Type: Bug
         Environment: Plugin:  org.jboss.tools.common.model.ui (2.0.0.200807152328-nightly)

Eclipse Version: 3.4.0
Build id: I20080617-2000
Java 1.5 / XP
            Reporter: Georg Sendt


1. Load  pages.xml into graphical editor
2. go to source tab
3. delete the first entry

java.lang.NullPointerException
at org.eclipse.draw2d.PolylineConnection.layout(PolylineConnection.java:176)
at org.jboss.tools.seam.ui.pages.editor.edit.LinkEditPart$AdapterImpl.notifyChanged(LinkEditPart.java:263)
at org.eclipse.emf.common.notify.impl.BasicNotifierImpl.eNotify(BasicNotifierImpl.java:247)
at org.eclipse.emf.common.notify.impl.NotificationImpl.dispatch(NotificationImpl.java:1030)
at org.eclipse.emf.common.notify.impl.NotificationImpl.dispatch(NotificationImpl.java:1035)
at org.jboss.tools.seam.ui.pages.editor.ecore.pages.impl.LinkImpl.setToElement(LinkImpl.java:280)
at org.jboss.tools.seam.ui.pages.editor.ecore.pages.impl.PagesModelImpl$ML.structureChanged(PagesModelImpl.java:351)
at org.jboss.tools.common.model.impl.XModelImpl$2.run(XModelImpl.java:493)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37)
at org.jboss.tools.common.model.impl.XModelImpl.fireStructureChanged(XModelImpl.java:489)
at org.jboss.tools.common.model.impl.XModelObjectImpl.fireStructureChanged(XModelObjectImpl.java:404)
at org.jboss.tools.common.model.impl.XModelObjectImpl.removeChild(XModelObjectImpl.java:253)
at org.jboss.tools.common.model.impl.XModelObjectImpl.removeFromParent(XModelObjectImpl.java:259)
at org.jboss.tools.seam.pages.xml.model.helpers.SeamPagesDiagramHelper.removeObsoletePageItems(SeamPagesDiagramHelper.java:157)
at org.jboss.tools.seam.pages.xml.model.helpers.SeamPagesDiagramHelper.updateDiagram0(SeamPagesDiagramHelper.java:114)
at org.jboss.tools.seam.pages.xml.model.helpers.SeamPagesDiagramHelper.updateDiagram(SeamPagesDiagramHelper.java:67)
at org.jboss.tools.seam.pages.xml.model.FileSeamPagesImpl.mergeAll(FileSeamPagesImpl.java:47)
at org.jboss.tools.common.model.filesystems.impl.AbstractExtendedXMLFileImpl.edit(AbstractExtendedXMLFileImpl.java:192)
at org.jboss.tools.common.model.filesystems.impl.AbstractExtendedXMLFileImpl.edit(AbstractExtendedXMLFileImpl.java:144)
at org.jboss.tools.common.model.ui.texteditors.TextEditorSupport.save(TextEditorSupport.java:89)
at org.jboss.tools.common.model.ui.texteditors.TextEditorSupport.save(TextEditorSupport.java:81)
at org.jboss.tools.common.model.ui.texteditors.XMLTextEditorComponent.save(XMLTextEditorComponent.java:141)
at org.jboss.tools.common.model.ui.texteditors.xmleditor.XMLTextEditor$TextFocusListener$1.run(XMLTextEditor.java:281)
at org.eclipse.swt.widgets.Synchronizer.syncExec(Synchronizer.java:178)
at org.eclipse.ui.internal.UISynchronizer.syncExec(UISynchronizer.java:150)
at org.eclipse.swt.widgets.Display.syncExec(Display.java:4251)
at org.jboss.tools.common.model.ui.texteditors.xmleditor.XMLTextEditor$TextFocusListener.focusLost(XMLTextEditor.java:273)
at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:137)
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.Widget.sendEvent(Widget.java:1027)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1008)
at org.eclipse.swt.widgets.Control.sendFocusEvent(Control.java:2429)
at org.eclipse.swt.widgets.Widget.wmKillFocus(Widget.java:1765)
at org.eclipse.swt.widgets.Control.WM_KILLFOCUS(Control.java:4130)
at org.eclipse.swt.widgets.Canvas.WM_KILLFOCUS(Canvas.java:429)
at org.eclipse.swt.widgets.Control.windowProc(Control.java:3820)
at org.eclipse.swt.widgets.Canvas.windowProc(Canvas.java:337)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:4541)
at org.eclipse.swt.internal.win32.OS.SetFocus(Native Method)
at org.eclipse.swt.widgets.Control.forceFocus(Control.java:974)
at org.eclipse.swt.widgets.Control.setFixedFocus(Control.java:2791)
at org.eclipse.swt.widgets.Composite.setFixedFocus(Composite.java:913)
at org.eclipse.swt.widgets.Composite.setFixedFocus(Composite.java:911)
at org.eclipse.swt.widgets.Control.fixFocus(Control.java:932)
at org.eclipse.swt.widgets.Control.setEnabled(Control.java:2786)
at org.eclipse.jface.window.ApplicationWindow.run(ApplicationWindow.java:743)
at org.eclipse.ui.internal.WorkbenchWindow.run(WorkbenchWindow.java:2483)
at org.eclipse.ui.internal.SaveableHelper.runProgressMonitorOperation(SaveableHelper.java:274)
at org.eclipse.ui.internal.SaveableHelper.runProgressMonitorOperation(SaveableHelper.java:253)
at org.eclipse.ui.internal.SaveableHelper.savePart(SaveableHelper.java:148)
at org.eclipse.ui.internal.EditorManager.savePart(EditorManager.java:1350)
at org.eclipse.ui.internal.WorkbenchPage.savePart(WorkbenchPage.java:3291)
at org.eclipse.ui.internal.WorkbenchPage.saveEditor(WorkbenchPage.java:3304)
at org.jboss.tools.common.model.ui.texteditors.SaveAction2.run(XMLTextEditorComponent.java:443)
at org.eclipse.jface.action.Action.runWithEvent(Action.java:498)
at org.eclipse.jface.commands.ActionHandler.execute(ActionHandler.java:119)
at org.eclipse.core.commands.Command.executeWithChecks(Command.java:476)
at org.eclipse.core.commands.ParameterizedCommand.executeWithChecks(ParameterizedCommand.java:508)
at org.eclipse.ui.internal.handlers.HandlerService.executeCommand(HandlerService.java:169)
at org.eclipse.ui.internal.keys.WorkbenchKeyboard.executeCommand(WorkbenchKeyboard.java:471)
at org.eclipse.ui.internal.keys.WorkbenchKeyboard.press(WorkbenchKeyboard.java:822)
at org.eclipse.ui.internal.keys.WorkbenchKeyboard.processKeyEvent(WorkbenchKeyboard.java:880)
at org.eclipse.ui.internal.keys.WorkbenchKeyboard.filterKeySequenceBindings(WorkbenchKeyboard.java:569)
at org.eclipse.ui.internal.keys.WorkbenchKeyboard.access$3(WorkbenchKeyboard.java:511)
at org.eclipse.ui.internal.keys.WorkbenchKeyboard$KeyDownFilter.handleEvent(WorkbenchKeyboard.java:126)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Display.filterEvent(Display.java:1184)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1002)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1027)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1012)
at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:1040)
at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:1036)
at org.eclipse.swt.widgets.Widget.wmChar(Widget.java:1352)
at org.eclipse.swt.widgets.Control.WM_CHAR(Control.java:3894)
at org.eclipse.swt.widgets.Canvas.WM_CHAR(Canvas.java:341)
at org.eclipse.swt.widgets.Control.windowProc(Control.java:3787)
at org.eclipse.swt.widgets.Canvas.windowProc(Canvas.java:337)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:4528)
at org.eclipse.swt.internal.win32.OS.DispatchMessageW(Native Method)
at org.eclipse.swt.internal.win32.OS.DispatchMessage(OS.java:2370)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3420)
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:382)
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)


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