java.lang.NullPointerException

Oracle Community | 807595 | 1 decade ago
  1. 0

    Cant re enter loop

    Oracle Community | 1 decade ago | 807595
    java.lang.NullPointerException
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    How don't insert duplicate objects in db4o

    Stack Overflow | 2 years ago | salveta
    java.lang.NullPointerException
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    JAVA - class and it's object, super

    Stack Overflow | 2 years ago | AlexSS
    java.lang.NullPointerException
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    The Fragment was destroyed, and getActivity() returned null. Don't destroy the Fragment.

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    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at Principal.main()
    2. Unknown
      Principal.main
      1. Principal.main(Principal.java:30)
      1 frame