java.lang.NullPointerException: parent is null

Coderanch | Simone Li | 8 years ago
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  1. 0

    About PopupMenus...

    Coderanch | 8 years ago | Simone Li
    java.lang.NullPointerException: parent is null
  2. 0

    Popup menu parent ( null pointer exception )

    Google Groups | 2 decades ago | Ilougino Rocha
    java.lang.NullPointerException: parent is null
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    Getting NullPointerException in PopupMenu

    Oracle Community | 1 decade ago | 807577
    java.lang.NullPointerException: parent is null
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    Root Cause Analysis

    1. java.lang.NullPointerException

      parent is null

      at java.awt.PopupMenu.show()
    2. Java RT
      PopupMenu.show
      1. java.awt.PopupMenu.show(PopupMenu.java:149)
      1 frame
    3. Unknown
      PopupMenuTest$PopupListener.mouseReleased
      1. PopupMenuTest$PopupListener.maybeShowPopup(PopupMenuTest.java:50)
      2. PopupMenuTest$PopupListener.mouseReleased(PopupMenuTest.java:45)
      2 frames
    4. Java RT
      AWTEventMulticaster.mouseReleased
      1. java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:290)
      1 frame