java.lang.NullPointerException

Attempt to invoke virtual method 'java.lang.String java.lang.String.trim()' on a null object reference

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Solutions on the web21074

  • Attempt to invoke virtual method 'java.lang.String java.lang.String.trim()' on a null object reference
  • via Stack Overflow by Mahmoud Omara
    , 3 weeks ago
    Attempt to invoke virtual method 'java.lang.String java.lang.String.trim()' on a null object reference
  • Attempt to invoke virtual method 'java.lang.String java.lang.String.trim()' on a null object reference
  • Stack trace

    • java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String java.lang.String.trim()' on a null object reference at com.example.hp.marklist.admin$1LoginAsync.onPostExecute(admin.java:143) at com.example.hp.marklist.admin$1LoginAsync.onPostExecute(admin.java:81) at android.os.AsyncTask.finish(AsyncTask.java:651)

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