java.lang.NullPointerException

Oracle Community | 807577 | 1 decade ago
  1. 0

    Custom Look and Feel Error

    Oracle Community | 1 decade ago | 807577
    java.lang.NullPointerException
  2. 0

    NullPointerException in isDispatchThread() methods

    Oracle Community | 1 decade ago | 843805
    java.lang.NullPointerException
  3. 0
    The Fragment was destroyed, and getActivity() returned null. Don't destroy the Fragment.
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  5. 0

    Android: Saving Map State in Google map

    Stack Overflow | 1 year ago | Junie Negentien
    java.lang.RuntimeException: Unable to resume activity {com.ourThesis.junieNegentien2015/com.ourThesis.junieNegentien2015.MainActivity}: java.lang.NullPointerException

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    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at java.util.Hashtable.get()
    2. Java RT
      JInternalFrame.<init>
      1. java.util.Hashtable.get(Hashtable.java:329)
      2. java.awt.Component.getFontMetrics(Component.java:2175)
      3. javax.swing.plaf.basic.BasicInternalFrameTitlePane$TitlePaneLayout.minimumLayoutSize(BasicInternalFrameTitlePane.java:442)
      4. javax.swing.plaf.basic.BasicInternalFrameTitlePane$TitlePaneLayout.preferredLayoutSize(BasicInternalFrameTitlePane.java:425)
      5. java.awt.Container.preferredSize(Container.java:1175)
      6. java.awt.Container.getPreferredSize(Container.java:1159)
      7. javax.swing.JComponent.getPreferredSize(JComponent.java:1274)
      8. java.awt.BorderLayout.preferredLayoutSize(BorderLayout.java:564)
      9. javax.swing.plaf.basic.BasicDesktopIconUI.getPreferredSize(BasicDesktopIconUI.java:102)
      10. javax.swing.JComponent.getPreferredSize(JComponent.java:1272)
      11. javax.swing.JInternalFrame$JDesktopIcon.updateUI(JInternalFrame.java:2187)
      12. javax.swing.JInternalFrame$JDesktopIcon.<init>(JInternalFrame.java:2116)
      13. javax.swing.JInternalFrame.<init>(JInternalFrame.java:285)
      14. javax.swing.JInternalFrame.<init>(JInternalFrame.java:203)
      14 frames
    3. test
      Run.main
      1. test.Frame.<init>(Frame.java:189)
      2. test.Run.<init>(Run.java:13)
      3. test.Run.main(Run.java:37)
      3 frames