java.lang.NullPointerException

Coderanch | Leajon First | 4 years ago
  1. 0

    DefaultTableModel got a NullPointerException.

    Coderanch | 4 years ago | Leajon First
    java.lang.NullPointerException
  2. 0

    Android: Saving Map State in Google map

    Stack Overflow | 11 months 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 tbl.TestTable$TM.getRowCount()
    2. tbl
      TestTable$TM.getRowCount
      1. tbl.TestTable$TM.getRowCount(TestTable.java:45)
      1 frame
    3. Java RT
      DefaultTableModel.<init>
      1. javax.swing.table.DefaultTableModel.setDataVector(DefaultTableModel.java:224)
      2. javax.swing.table.DefaultTableModel.<init>(DefaultTableModel.java:124)
      3. javax.swing.table.DefaultTableModel.<init>(DefaultTableModel.java:106)
      4. javax.swing.table.DefaultTableModel.<init>(DefaultTableModel.java:86)
      4 frames
    4. tbl
      TestTable$1.run
      1. tbl.TestTable$TM.<init>(TestTable.java:35)
      2. tbl.TestTable.initComponents(TestTable.java:28)
      3. tbl.TestTable.<init>(TestTable.java:24)
      4. tbl.TestTable.createAndShowGUI(TestTable.java:55)
      5. tbl.TestTable.access$000(TestTable.java:21)
      6. tbl.TestTable$1.run(TestTable.java:63)
      6 frames
    5. Java RT
      EventDispatchThread.run
      1. java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:251)
      2. java.awt.EventQueue.dispatchEventImpl(EventQueue.java:711)
      3. java.awt.EventQueue.access$000(EventQueue.java:104)
      4. java.awt.EventQueue$3.run(EventQueue.java:672)
      5. java.awt.EventQueue$3.run(EventQueue.java:670)
      6. java.security.AccessController.doPrivileged(Native Method)
      7. java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
      8. java.awt.EventQueue.dispatchEvent(EventQueue.java:681)
      9. java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:244)
      10. java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:163)
      11. java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:151)
      12. java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:147)
      13. java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:139)
      14. java.awt.EventDispatchThread.run(EventDispatchThread.java:97)
      14 frames