[kepler-dev] error dragging a relation from a port

Derik Barseghian barseghian at nceas.ucsb.edu
Mon Aug 20 15:28:09 PDT 2012 

Hey Christopher,
Dan and I are getting an error[1] when trying to drag a relation from a port today in Kepler.
I'm also seeing a few other issues that seem to happen after the above. I got an NPE[2] from a click, have strange actor-drag behavior (actor drags wildly / shoots off in one direction), and sometimes dots are left over on canvas at the point where I clicked on the port. Also when I'm dragging out a relation I also notice in the upper left corner of canvas a blue 'port endpoint' square (generally only noticeable in the overview section in the lower left). 
See attached screenshot to see dots and blue square.
Derik

[1]
java.lang.NullPointerException
	at diva.canvas.TransformContext.getTransform(TransformContext.java:161)
	at diva.canvas.AbstractSite.getPoint(AbstractSite.java:82)
	at diva.canvas.connector.BasicManhattanRouter.routeManhattan(BasicManhattanRouter.java:87)
	at diva.canvas.connector.BasicManhattanRouter.route(BasicManhattanRouter.java:68)
	at diva.canvas.connector.ManhattanConnector.route(ManhattanConnector.java:121)
	at ptolemy.vergil.actor.KielerLayoutConnector.route(KielerLayoutConnector.java:214)
	at diva.canvas.connector.AbstractConnector.reroute(AbstractConnector.java:285)
	at diva.canvas.connector.AbstractConnector.tailMoved(AbstractConnector.java:406)
	at diva.canvas.connector.AbstractConnector.setTailSite(AbstractConnector.java:398)
	at ptolemy.vergil.actor.ActorEditorGraphController$LinkCreator.mousePressed(ActorEditorGraphController.java:676)
	at diva.canvas.interactor.CompositeInteractor.mousePressed(CompositeInteractor.java:199)
	at diva.canvas.FigureLayer.dispatchEventUpTree(FigureLayer.java:551)
	at diva.canvas.FigureLayer.grabPointer(FigureLayer.java:319)
	at diva.canvas.FigureLayer.processLayerEvent(FigureLayer.java:673)
	at diva.canvas.FigureLayer.dispatchEvent(FigureLayer.java:203)
	at diva.canvas.CanvasPane.processLayerEvent(CanvasPane.java:280)
	at diva.canvas.CanvasPane.dispatchEvent(CanvasPane.java:89)
	at diva.canvas.JCanvas.internalProcessMouseEvent(JCanvas.java:520)
	at diva.canvas.JCanvas.processMouseEvent(JCanvas.java:474)
	at java.awt.Component.processEvent(Component.java:6140)
	at java.awt.Container.processEvent(Container.java:2083)
	at java.awt.Component.dispatchEventImpl(Component.java:4737)
	at java.awt.Container.dispatchEventImpl(Container.java:2141)
	at java.awt.Component.dispatchEvent(Component.java:4565)
	at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4619)
	at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4277)
	at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4210)
	at java.awt.Container.dispatchEventImpl(Container.java:2127)
	at java.awt.Window.dispatchEventImpl(Window.java:2482)
	at java.awt.Component.dispatchEvent(Component.java:4565)
	at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:684)
	at java.awt.EventQueue.access$000(EventQueue.java:85)
	at java.awt.EventQueue$1.run(EventQueue.java:643)
	at java.awt.EventQueue$1.run(EventQueue.java:641)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87)
	at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:98)
	at java.awt.EventQueue$2.run(EventQueue.java:657)
	at java.awt.EventQueue$2.run(EventQueue.java:655)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:654)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:296)
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:211)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:201)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:196)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:188)
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)


[2]
      [run] Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
      [run] 	at diva.canvas.TransformContext.getTransform(TransformContext.java:161)
      [run] 	at diva.canvas.AbstractSite.getPoint(AbstractSite.java:82)
      [run] 	at diva.canvas.interactor.BasicGrabHandle.relocate(BasicGrabHandle.java:94)
      [run] 	at diva.canvas.interactor.Manipulator.relocateGrabHandles(Manipulator.java:191)
      [run] 	at diva.canvas.interactor.Manipulator.repaint(Manipulator.java:211)
      [run] 	at diva.canvas.interactor.Manipulator.repaint(Manipulator.java:175)
      [run] 	at diva.canvas.AbstractFigure.repaint(AbstractFigure.java:236)
      [run] 	at diva.canvas.AbstractFigure.repaint(AbstractFigure.java:224)
      [run] 	at diva.canvas.FigureDecorator.setChild(FigureDecorator.java:190)
      [run] 	at diva.canvas.connector.ConnectorManipulator.setChild(ConnectorManipulator.java:215)
      [run] 	at diva.canvas.FigureLayer.decorate(FigureLayer.java:180)
      [run] 	at diva.canvas.interactor.BasicSelectionRenderer.renderSelected(BasicSelectionRenderer.java:119)
      [run] 	at diva.canvas.interactor.BasicSelectionModel.renderSelected(BasicSelectionModel.java:271)
      [run] 	at diva.canvas.interactor.BasicSelectionModel.addSelection(BasicSelectionModel.java:101)
      [run] 	at diva.canvas.interactor.SelectionInteractor.mousePressed(SelectionInteractor.java:172)
      [run] 	at diva.canvas.FigureLayer.dispatchEventUpTree(FigureLayer.java:551)
      [run] 	at diva.canvas.FigureLayer.grabPointer(FigureLayer.java:319)
      [run] 	at diva.canvas.FigureLayer.processLayerEvent(FigureLayer.java:673)
      [run] 	at diva.canvas.FigureLayer.dispatchEvent(FigureLayer.java:203)
      [run] 	at diva.canvas.CanvasPane.processLayerEvent(CanvasPane.java:280)
      [run] 	at diva.canvas.CanvasPane.dispatchEvent(CanvasPane.java:89)
      [run] 	at diva.canvas.JCanvas.internalProcessMouseEvent(JCanvas.java:520)
      [run] 	at diva.canvas.JCanvas.processMouseEvent(JCanvas.java:474)
      [run] 	at java.awt.Component.processEvent(Component.java:6140)
      [run] 	at java.awt.Container.processEvent(Container.java:2083)
      [run] 	at java.awt.Component.dispatchEventImpl(Component.java:4737)
      [run] 	at java.awt.Container.dispatchEventImpl(Container.java:2141)
      [run] 	at java.awt.Component.dispatchEvent(Component.java:4565)
      [run] 	at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4619)
      [run] 	at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4277)
      [run] 	at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4210)
      [run] 	at java.awt.Container.dispatchEventImpl(Container.java:2127)
      [run] 	at java.awt.Window.dispatchEventImpl(Window.java:2482)
      [run] 	at java.awt.Component.dispatchEvent(Component.java:4565)
      [run] 	at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:684)
      [run] 	at java.awt.EventQueue.access$000(EventQueue.java:85)
      [run] 	at java.awt.EventQueue$1.run(EventQueue.java:643)
      [run] 	at java.awt.EventQueue$1.run(EventQueue.java:641)
      [run] 	at java.security.AccessController.doPrivileged(Native Method)
      [run] 	at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87)
      [run] 	at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:98)
      [run] 	at java.awt.EventQueue$2.run(EventQueue.java:657)
      [run] 	at java.awt.EventQueue$2.run(EventQueue.java:655)
      [run] 	at java.security.AccessController.doPrivileged(Native Method)
      [run] 	at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87)
      [run] 	at java.awt.EventQueue.dispatchEvent(EventQueue.java:654)
      [run] 	at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:296)
      [run] 	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:211)
      [run] 	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:201)
      [run] 	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:196)
      [run] 	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:188)
      [run] 	at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)



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