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

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via Oracle Community by 807577, 1 year ago
java.lang.NullPointerException:
at undefined.Sem2.getActionByName(Sem2.java:300)
at undefined.Sem2.createMenuBar(Sem2.java:127)
at undefined.Sem2.(Sem2.java:64)
at undefined.Sem2.main(Sem2.java:366)

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