java.lang.NullPointerException: Attempt to invoke interface method 'int java.util.List.size()' on a null object reference

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via Stack Overflow by Satyam rathore
, 1 year ago
Attempt to invoke interface method 'int java.util.List.size()' on a null object reference
via Stack Overflow by Balamurugan
, 1 year ago
Attempt to invoke interface method 'int java.util.List.size()' on a null object reference
via Stack Overflow by LetsDoCode
, 1 year ago
Attempt to invoke interface method 'int java.util.List.size()' on a null object reference
via Stack Overflow by skbrhmn
, 1 year ago
Attempt to invoke interface method 'int java.util.List.size()' on a null object reference
via Stack Overflow by skbrhmn
, 1 year ago
Attempt to invoke interface method 'int java.util.List.size()' on a null object reference
via Stack Overflow by Unknown author, 2 years ago
Attempt to invoke interface method 'int java.util.List.size()' on a null object reference
java.lang.NullPointerException: Attempt to invoke interface method 'int java.util.List.size()' on a null object reference
at android.widget.ArrayAdapter.getCount(ArrayAdapter.java:330)
at android.widget.ListView.setAdapter(ListView.java:499)
at com.example.administrator.mainpage.MainActivity$JSONTask.onPostExecute(MainActivity.java:56)
at com.example.administrator.mainpage.MainActivity$JSONTask.onPostExecute(MainActivity.java:41)
at android.os.AsyncTask.finish(AsyncTask.java:636)
at android.os.AsyncTask.access$500(AsyncTask.java:177)
at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:653)
at android.os.Handler.dispatchMessage(Handler.java:111)
at android.os.Looper.loop(Looper.java:194)
at android.app.ActivityThread.main(ActivityThread.java:5649)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:959)

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