java.lang.NullPointerException: Attempt to invoke interface method 'void br.com.fiap.petwell.interfaces.AsyncResponse.processFinish(java.lang.String)' on a null object reference

Stack Overflow | Fake | 4 months ago
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    How to "initialize" a callback interface correctly

    Stack Overflow | 4 months ago | Fake
    java.lang.NullPointerException: Attempt to invoke interface method 'void br.com.fiap.petwell.interfaces.AsyncResponse.processFinish(java.lang.String)' on a null object reference
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    samebug tip
    Use 'dialog' to access views from custom_layout layout.
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    samebug tip
    The resource was accessed after it was dismissed.
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    samebug tip
    Initialize the variable before calling a method on it.
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    Why am I keep getting a java.lang.nullpointerexception in Android Studio?

    Stack Overflow | 1 year ago | Ryan Anthony
    java.lang.NullPointerException: Attempt to invoke interface method 'void com.example.vanessaanthony.fragmentreview.TopFragment$FragmentInterface.sendTheInput(java.lang.String, java.lang.String)' on a null object reference

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    Root Cause Analysis

    1. java.lang.NullPointerException

      Attempt to invoke interface method 'void br.com.fiap.petwell.interfaces.AsyncResponse.processFinish(java.lang.String)' on a null object reference

      at br.com.fiap.petwell.requesttask.GetFeederRequestTask.onPostExecute()
    2. br.com.fiap
      GetFeederRequestTask.onPostExecute
      1. br.com.fiap.petwell.requesttask.GetFeederRequestTask.onPostExecute(GetFeederRequestTask.java:38)
      2. br.com.fiap.petwell.requesttask.GetFeederRequestTask.onPostExecute(GetFeederRequestTask.java:15)
      2 frames
    3. Android Platform
      AsyncTask.finish
      1. android.os.AsyncTask.finish(AsyncTask.java:651)
      1 frame