java.lang.NullPointerException

Oracle Community | 843851 | 7 years ago
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    Drag&Drop + JComponent = NullPointerException

    Oracle Community | 7 years ago | 843851
    java.lang.NullPointerException

    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at com.sun.embeddedswing.EmbeddedEventQueue.moveToVisibleAndOnScreen()
    2. com.sun.embeddedswing
      EmbeddedEventQueue$EventQueueDelegateFactory$2.call
      1. com.sun.embeddedswing.EmbeddedEventQueue.moveToVisibleAndOnScreen(EmbeddedEventQueue.java:155)
      2. com.sun.embeddedswing.EmbeddedEventQueue.beforeDispatch(EmbeddedEventQueue.java:376)
      3. com.sun.embeddedswing.EmbeddedEventQueue.access$400(EmbeddedEventQueue.java:74)
      4. com.sun.embeddedswing.EmbeddedEventQueue$EventQueueDelegateFactory$2.call(EmbeddedEventQueue.java:728)
      4 frames
    3. Java RT
      SwingUtilities3$EventQueueDelegateFromMap.beforeDispatch
      1. com.sun.java.swing.SwingUtilities3$EventQueueDelegateFromMap.beforeDispatch(SwingUtilities3.java:198)
      1 frame