java.lang.NullPointerException: This exception has no message.

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via Coderanch by oghenekaro EFEKODO, 1 year ago
This exception has no message.
via Oracle Community by 843805, 1 year ago
This exception has no message.
via Oracle Community by 807551, 1 year ago
This exception has no message.
via GitHub by sergeykad
, 1 year ago
This exception has no message.
via Oracle Community by 843805, 1 year ago
This exception has no message.
via Oracle Community by 807587, 1 year ago
java.lang.NullPointerException:
at java.awt.Container.addImpl(Unknown Source)
at java.awt.Container.add(Unknown Source)
at javax.swing.JDialog.addImpl(Unknown Source)
at java.awt.Container.add(Unknown Source)
at undefined.TestDialog.(TryDialog.java:28)
at undefined.TryDialog.(TryDialog.java:68)
at undefined.TryDialog.main(TryDialog.java:91)

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