DiagramView.copyToClipboard(true) causes java.lang.NullPointerException - Diagramming Components

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DiagramView.copyToClipboard(true) causes java.lang.NullPointerException (Read 4036 times)

Jan Meyer YaBB Newbies Offline I Love MindFusion! Posts: 23 Joined: Feb 26^th, 2012	DiagramView.copyToClipboard(true) causes java.lang.NullPointerException Aug 8^th, 2012 at 8:45am	Print Post
	When I create a selection containing a 2 linked nodes (the link is selected, too), and a 3rd node is attached to the link I will get a null-pointer exception: Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException at com.mindfusion.diagramming.Serialization.writeRect(Unknown Source) at com.mindfusion.diagramming.Group.writeExternal(Unknown Source) at java.io.ObjectOutputStream.writeExternalData(Unknown Source) at java.io.ObjectOutputStream.writeOrdinaryObject(Unknown Source) at java.io.ObjectOutputStream.writeObject0(Unknown Source) at java.io.ObjectOutputStream.writeObject(Unknown Source) at com.mindfusion.diagramming.DiagramItem.writeExternal(Unknown Source) at com.mindfusion.diagramming.DiagramLink.writeExternal(Unknown Source) at java.io.ObjectOutputStream.writeExternalData(Unknown Source) at java.io.ObjectOutputStream.writeOrdinaryObject(Unknown Source) at java.io.ObjectOutputStream.writeObject0(Unknown Source) at java.io.ObjectOutputStream.writeObject(Unknown Source) at com.mindfusion.diagramming.BaseList.writeExternal(Unknown Source) at java.io.ObjectOutputStream.writeExternalData(Unknown Source) at java.io.ObjectOutputStream.writeOrdinaryObject(Unknown Source) at java.io.ObjectOutputStream.writeObject0(Unknown Source) at java.io.ObjectOutputStream.writeObject(Unknown Source) at com.mindfusion.diagramming.DiagramNode.writeExternal(Unknown Source) at com.mindfusion.diagramming.ShapeNode.writeExternal(Unknown Source) at java.io.ObjectOutputStream.writeExternalData(Unknown Source) at java.io.ObjectOutputStream.writeOrdinaryObject(Unknown Source) at java.io.ObjectOutputStream.writeObject0(Unknown Source) at java.io.ObjectOutputStream.writeObject(Unknown Source) at com.mindfusion.diagramming.BaseList.writeExternal(Unknown Source) at java.io.ObjectOutputStream.writeExternalData(Unknown Source) at java.io.ObjectOutputStream.writeOrdinaryObject(Unknown Source) at java.io.ObjectOutputStream.writeObject0(Unknown Source) at java.io.ObjectOutputStream.writeObject(Unknown Source) at com.mindfusion.diagramming.Diagram.a(Unknown Source) at com.mindfusion.diagramming.Diagram.a(Unknown Source) at com.mindfusion.diagramming.Diagram.saveTo(Unknown Source) at com.mindfusion.diagramming.DiagramView.a(Unknown Source) at com.mindfusion.diagramming.DiagramView.copyToClipboard(Unknown Source) When I deselect the link copyToClipboard(true) will be ok. Regards, Jan


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Jan Meyer YaBB Newbies Offline I Love MindFusion! Posts: 23 Joined: Feb 26^th, 2012	Re: DiagramView.copyToClipboard(true) causes java.lang.NullPointerException Reply #1 - Aug 8^th, 2012 at 12:29pm	Print Post
	After some research I noticed the following facts: * After attaching DiagramNode to DiagramLink, it is not possible to use Diagram.copyToClipboard(true). * Even detaching the attached DiagramNode afterwards will cause same the run-time exception. * Saving and loading diagram containing DiagramLinks with subordinated DiagramNodes will work. (XML-format tested) Regards, Jan


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Stoyo God Member Offline MindFusion support Posts: 13230 Joined: Jul 20^th, 2005	Re: DiagramView.copyToClipboard(true) causes java.lang.NullPointerException Reply #2 - Aug 8^th, 2012 at 4:51pm	Print Post
	This version should fix the exception: https://mindfusion.eu/_beta/jdiag_copylg.zip If you are using attached nodes to display additional link labels, since v3.3 you can use the link's addLabel method instead. I hope that helps, Stoyan


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Jan Meyer YaBB Newbies Offline I Love MindFusion! Posts: 23 Joined: Feb 26^th, 2012	Re: DiagramView.copyToClipboard(true) causes java.lang.NullPointerException Reply #3 - Aug 8^th, 2012 at 6:00pm	Print Post
	Thanx a lot! LinkLabels have a major disadvantage. Their x/y-offset can't be modified by using the mouse. Also you can't select more than one LinkLabel and move them arround. I would like to use LinkLabels if they can be selected and modified by mouse. Regards, Jan


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