java.lang.NullPointerException

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Solutions on the web123908

  • via Terracotta by unnutz, 11 months ago
    This exception has no message.
  • This exception has no message.
  • This exception has no message.
  • Stack trace

    • java.lang.NullPointerException at MyProject.GroupableTableHeaderUI.getHeaderHeight(GroupableHeaderExample.java:345) at MyProject.GroupableTableHeaderUI.createHeaderSize(GroupableHeaderExample.java:366) at MyProject.GroupableTableHeaderUI.getPreferredSize(GroupableHeaderExample.java:376) at javax.swing.JComponent.getPreferredSize(JComponent.java:1262) at javax.swing.ViewportLayout.preferredLayoutSize(ViewportLayout.java:75) at java.awt.Container.preferredSize(Container.java:1134) at java.awt.Container.getPreferredSize(Container.java:1118)

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