java.lang.NullPointerException

Oracle Community | 807541 | 1 decade ago
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  1. 0

    Exception occured during dispatch error

    Oracle Community | 1 decade ago | 807541
    java.lang.NullPointerException
  2. 0

    Strange error messages

    Oracle Community | 1 decade ago | 807541
    java.lang.NullPointerException

    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at test5.client$1.getColumnClass()
    2. test5
      client$1.getColumnClass
      1. test5.client$1.getColumnClass(client.java:86)
      1 frame
    3. Java RT
      Container.processEvent
      1. javax.swing.JTable.getColumnClass(JTable.java:1695)
      2. javax.swing.JTable.getCellRenderer(JTable.java:3512)
      3. javax.swing.JTable.getToolTipText(JTable.java:2303)
      4. javax.swing.ToolTipManager.mouseEntered(ToolTipManager.java:397)
      5. java.awt.AWTEventMulticaster.mouseEntered(AWTEventMulticaster.java:240)
      6. java.awt.Component.processMouseEvent(Component.java:3724)
      7. java.awt.Component.processEvent(Component.java:3544)
      8. java.awt.Container.processEvent(Container.java:1164)
      8 frames