java.lang.NullPointerException

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Solutions on the web123720

  • 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 java.awt.Container.addImpl(Container.java:625) at java.awt.Container.add(Container.java:307) at biz.FlueVentSizing.buildSectionPanel(FlueVentSizing.java:216) at biz.FlueVentSizing.<init>(FlueVentSizing.java:150) at biz.HVACMenu.populateTabbedPane(HVACMenu.java:52) at biz.HVACMenu.<init>(HVACMenu.java:41) at biz.HVACMenu.main(HVACMenu.java:100)

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