java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String com.matas.checksv3.Product.getDescription()' on a null object reference

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    Android Enthusiasts | 2 months ago | Matas Minelga
    java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String com.matas.checksv3.Product.getDescription()' on a null object reference
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    GitHub | 6 months ago | dmsherazi
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    GitHub comment 199#204448212

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    java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String org.json.JSONObject.optString(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 virtual method 'java.lang.String com.matas.checksv3.Product.getDescription()' on a null object reference

      at com.matas.checksv3.MainActivity$2.onClick()
    2. com.matas.checksv3
      MainActivity$2.onClick
      1. com.matas.checksv3.MainActivity$2.onClick(MainActivity.java:88)
      1 frame
    3. Android Platform
      ActivityThread.main
      1. android.view.View.performClick(View.java:5610)
      2. android.view.View$PerformClick.run(View.java:22260)
      3. android.os.Handler.handleCallback(Handler.java:751)
      4. android.os.Handler.dispatchMessage(Handler.java:95)
      5. android.os.Looper.loop(Looper.java:154)
      6. android.app.ActivityThread.main(ActivityThread.java:6077)
      6 frames
    4. Java RT
      Method.invoke
      1. java.lang.reflect.Method.invoke(Native Method)
      1 frame
    5. Android
      ZygoteInit.main
      1. com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:865)
      2. com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755)
      2 frames