java.lang.NullPointerException

Attempt to invoke virtual method 'android.database.Cursor android.database.sqlite.SQLiteDatabase.query(java.lang.String, java.lang.String[], java.lang.String, java.lang.String[], java.lang.String, java.lang.String, java.lang.String, java.lang.String)' on a null object reference

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Solutions on the web21090

  • via Coderanch by Julius Almeuda, 6 months ago
    Attempt to invoke virtual method 'android.database.Cursor android.database.sqlite.SQLiteDatabase.query(java.lang.String, java.lang.String[], java.lang.String, java.lang.String[], java.lang.String, java.lang.String, java.lang.String, java.lang.String)' on a null object reference
  • Attempt to invoke virtual method 'android.database.Cursor android.database.sqlite.SQLiteDatabase.query(java.lang.String, java.lang.String[], java.lang.String, java.lang.String[], java.lang.String, java.lang.String, java.lang.String, java.lang.String)' on a null object reference
  • Attempt to invoke virtual method 'android.database.Cursor android.database.sqlite.SQLiteDatabase.query(java.lang.String, java.lang.String[], java.lang.String, java.lang.String[], java.lang.String, java.lang.String, java.lang.String, java.lang.String)' on a null object reference
  • Stack trace

    • java.lang.NullPointerException: Attempt to invoke virtual method 'android.database.Cursor android.database.sqlite.SQLiteDatabase.query(java.lang.String, java.lang.String[], java.lang.String, java.lang.String[], java.lang.String, java.lang.String, java.lang.String, java.lang.String)' on a null object reference at com.amplitude.api.DatabaseHelper.queryDb(DatabaseHelper.java:395) at com.amplitude.api.DatabaseHelper.getValueFromTable(DatabaseHelper.java:209) at com.amplitude.api.DatabaseHelper.getValue(DatabaseHelper.java:197) at com.amplitude.api.AmplitudeClient.upgradeSharedPrefsToDB(AmplitudeClient.java:2098) at com.amplitude.api.AmplitudeClient.upgradeSharedPrefsToDB(AmplitudeClient.java:2081) at com.amplitude.api.AmplitudeClient$1.run(AmplitudeClient.java:241) at android.os.Handler.handleCallback(Handler.java:739) at android.os.Handler.dispatchMessage(Handler.java:95) at android.os.Looper.loop(Looper.java:135) at android.os.HandlerThread.run(HandlerThread.java:61)

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