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

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via Oracle Community by 807553, 1 year ago
This exception has no message.
java.lang.NullPointerException:
at quizserver.QuizServer$PortConnection.instructorLoginPrompt(QuizServer.java:218)
at quizserver.QuizServer$PortConnection.instructorPrompt(QuizServer.java:188)
at quizserver.QuizServer$PortConnection.loginPrompt(QuizServer.java:140)
at quizserver.QuizServer$PortConnection.run(QuizServer.java:247)

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