java.lang.ClassCastException: java.util.ArrayList cannot be cast to org.eclipse.gef.EditPart

GitHub | cxbrooks | 11 months ago
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    Dragging a TrigFunction actor fails in the May 29 build and throws an exception in the head

    GitHub | 11 months ago | cxbrooks
    java.lang.ClassCastException: java.util.ArrayList cannot be cast to org.eclipse.gef.EditPart

    Root Cause Analysis

    1. java.lang.ClassCastException

      java.util.ArrayList cannot be cast to org.eclipse.gef.EditPart

      at org.eclipse.triquetrum.workflow.editor.palette.ui.PaletteTreeViewer.findObjectAtExcluding()
    2. org.eclipse.triquetrum
      PaletteTreeViewer.findObjectAtExcluding
      1. org.eclipse.triquetrum.workflow.editor.palette.ui.PaletteTreeViewer.findObjectAtExcluding(PaletteTreeViewer.java:127)
      1 frame
    3. Graphical Editing Framework
      GraphicalViewerImpl$1$TheLastListener.dragFinished
      1. org.eclipse.gef.tools.TargetingTool.updateTargetUnderMouse(TargetingTool.java:425)
      2. org.eclipse.gef.tools.TargetingTool.unlockTargetEditPart(TargetingTool.java:388)
      3. org.eclipse.gef.tools.SelectionTool.handleNativeDragFinished(SelectionTool.java:396)
      4. org.eclipse.gef.tools.AbstractTool.nativeDragFinished(AbstractTool.java:1247)
      5. org.eclipse.gef.EditDomain.nativeDragFinished(EditDomain.java:330)
      6. org.eclipse.gef.ui.parts.DomainEventDispatcher.dispatchNativeDragFinished(DomainEventDispatcher.java:396)
      7. org.eclipse.gef.ui.parts.GraphicalViewerImpl$1$TheLastListener.dragFinished(GraphicalViewerImpl.java:376)
      7 frames
    4. RWT
      DragSource.dragSourceProc
      1. org.eclipse.swt.dnd.DNDListener.handleEvent(DNDListener.java:45)
      2. org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
      3. org.eclipse.swt.widgets.Display.sendEvent(Display.java:4230)
      4. org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1491)
      5. org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1514)
      6. org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1499)
      7. org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:1299)
      8. org.eclipse.swt.dnd.DragSource.draggedImage_endedAt_operation(DragSource.java:445)
      9. org.eclipse.swt.dnd.DragSource.dragSourceProc(DragSource.java:562)
      9 frames
    5. org.eclipse.swt
      OS.objc_msgSendSuper
      1. org.eclipse.swt.internal.cocoa.OS.objc_msgSendSuper(Native Method)
      1 frame
    6. RWT
      Display.windowProc
      1. org.eclipse.swt.widgets.Widget.callSuper(Widget.java:227)
      2. org.eclipse.swt.widgets.Widget.mouseDownSuper(Widget.java:1121)
      3. org.eclipse.swt.widgets.Tree.mouseDownSuper(Tree.java:2047)
      4. org.eclipse.swt.widgets.Widget.mouseDown(Widget.java:1113)
      5. org.eclipse.swt.widgets.Control.mouseDown(Control.java:2569)
      6. org.eclipse.swt.widgets.Tree.mouseDown(Tree.java:2015)
      7. org.eclipse.swt.widgets.Display.windowProc(Display.java:5692)
      7 frames
    7. org.eclipse.swt
      OS.objc_msgSendSuper
      1. org.eclipse.swt.internal.cocoa.OS.objc_msgSendSuper(Native Method)
      1 frame
    8. RWT
      Display.windowProc
      1. org.eclipse.swt.widgets.Widget.callSuper(Widget.java:227)
      2. org.eclipse.swt.widgets.Widget.windowSendEvent(Widget.java:2130)
      3. org.eclipse.swt.widgets.Shell.windowSendEvent(Shell.java:2337)
      4. org.eclipse.swt.widgets.Display.windowProc(Display.java:5756)
      4 frames
    9. org.eclipse.swt
      OS.objc_msgSendSuper
      1. org.eclipse.swt.internal.cocoa.OS.objc_msgSendSuper(Native Method)
      1 frame
    10. RWT
      Display.applicationProc
      1. org.eclipse.swt.widgets.Display.applicationSendEvent(Display.java:5193)
      2. org.eclipse.swt.widgets.Display.applicationProc(Display.java:5342)
      2 frames
    11. org.eclipse.swt
      NSApplication.sendEvent
      1. org.eclipse.swt.internal.cocoa.OS.objc_msgSend(Native Method)
      2. org.eclipse.swt.internal.cocoa.NSApplication.sendEvent(NSApplication.java:128)
      2 frames
    12. RWT
      Display.readAndDispatch
      1. org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3695)
      1 frame
    13. Eclipse Workbench SWT
      PartRenderingEngine$4.run
      1. org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$4.run(PartRenderingEngine.java:1127)
      1 frame
    14. Databinding
      Realm.runWithDefault
      1. org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337)
      1 frame
    15. Eclipse Workbench SWT
      PartRenderingEngine.run
      1. org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1018)
      1 frame
    16. Eclipse Workbench
      E4Workbench.createAndRunUI
      1. org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:156)
      1 frame
    17. Eclipse UI
      Workbench$5.run
      1. org.eclipse.ui.internal.Workbench$5.run(Workbench.java:654)
      1 frame
    18. Databinding
      Realm.runWithDefault
      1. org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337)
      1 frame
    19. Eclipse UI
      Workbench.createAndRunWorkbench
      1. org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:598)
      1 frame
    20. Eclipse UI
      PlatformUI.createAndRunWorkbench
      1. org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150)
      1 frame
    21. Eclipse IDE
      IDEApplication.start
      1. org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:139)
      1 frame
    22. Equinox Container
      EclipseAppHandle.run
      1. org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
      1 frame
    23. Eclipse OSGi
      EclipseStarter.run
      1. org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134)
      2. org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
      3. org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:380)
      4. org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:235)
      4 frames
    24. Java RT
      Method.invoke
      1. sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      2. sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
      3. sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      4. java.lang.reflect.Method.invoke(Method.java:497)
      4 frames
    25. Equinox
      Main.main
      1. org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:669)
      2. org.eclipse.equinox.launcher.Main.basicRun(Main.java:608)
      3. org.eclipse.equinox.launcher.Main.run(Main.java:1515)
      4. org.eclipse.equinox.launcher.Main.main(Main.java:1488)
      4 frames