java.awt.dnd.InvalidDnDOperationException: failed to create native peer: java.lang.NullPointerException: null native data for trigger event

Oracle Community | 807577 | 1 decade ago
  1. 0

    drag and drop on linux

    Oracle Community | 1 decade ago | 807577
    java.awt.dnd.InvalidDnDOperationException: failed to create native peer: java.lang.NullPointerException: null native data for trigger event
  2. 0

    [URGENT PB] DnD with JTree And popupmenu ???

    Google Groups | 2 decades ago | Christophe Lallement
    java.awt.dnd.InvalidDnDOperationException: The operation requested cannot be performed by the DnD system since it is not in the appropriate state
  3. 0

    DnD

    Oracle Community | 1 decade ago | 843807
    java.awt.dnd.InvalidDnDOperationException: The operation requested cannot be performed by the DnD system since it is not in the appropriate state
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  5. 0

    exception when dragging panels on waveform window

    java.net Bugzilla | 6 years ago | strubin
    java.awt.dnd.InvalidDnDOperationException: Drag and drop in progress at sun.awt.dnd.SunDragSourceContextPeer.setDragDropInProgress(SunDragSourceContextPeer.java:298)
  6. 0

    DnD exception when Draging a component

    Oracle Community | 1 decade ago | 807577
    java.awt.dnd.InvalidDnDOperationException: The operation requested cannot be performed by the DnD system since it is not in the appropriate state

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    Root Cause Analysis

    1. java.awt.dnd.InvalidDnDOperationException

      failed to create native peer: java.lang.NullPointerException: null native data for trigger event

      at sun.awt.motif.MDragSourceContextPeer.startDrag()
    2. Java RT
      DragSource.startDrag
      1. sun.awt.motif.MDragSourceContextPeer.startDrag(MDragSourceContextPeer.java:71)
      2. sun.awt.dnd.SunDragSourceContextPeer.startDrag(SunDragSourceContextPeer.java:106)
      3. java.awt.dnd.DragSource.startDrag(DragSource.java:305)
      3 frames