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Editorial Team
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Asked: 2026-06-13T22:12:26+00:00

I followed the example at Help with passing ArrayList and parcelable Activity but for

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I followed the example at Help with passing ArrayList and parcelable Activity but for my case i’m trying to broadcast an intent from my Service class (Inside Asynctask) to Activity class like this.

ArrayList<Malware> addyExtras = new ArrayList <Malware>();

for (int i = 0; i < fetch.size(); i++) {
    addyExtras.add (fetch.get(i));
}
Intent d = new Intent();
d.setAction(COMPLETED_INTENT);
d.putExtra("CurrentProgress", "completed");
d.putParcelableArrayListExtra("MalwareArray", addyExtras);
sendBroadcast(d);

How i receive the broadcast intent

ArrayList<Malware> myList;
myList = getIntent().getParcelableArrayListExtra("MalwareArray");
Log.d("onReceive", "got myList");

for (int i = 0; i < myList.size(); i++) {
    Malware a = myList.get(i);
    Log.d("onReceive", "App Name:" + a.getApp());
    //tv1.setText(a.getName() + " is from " + a.getState());
}

It hits a nullpointerexception when trying to receive the intent

11-07 01:21:51.315: E/AndroidRuntime(18769): FATAL EXCEPTION: main
11-07 01:21:51.315: E/AndroidRuntime(18769): java.lang.RuntimeException: Error receiving broadcast Intent { act=com.analyze.project.CompletedReceiver flg=0x10 (has extras) } in com.analyze.project.AnalyzeActivity$1@41889670
11-07 01:21:51.315: E/AndroidRuntime(18769):    at android.app.LoadedApk$ReceiverDispatcher$Args.run(LoadedApk.java:737)
11-07 01:21:51.315: E/AndroidRuntime(18769):    at android.os.Handler.handleCallback(Handler.java:605)
11-07 01:21:51.315: E/AndroidRuntime(18769):    at android.os.Handler.dispatchMessage(Handler.java:92)
11-07 01:21:51.315: E/AndroidRuntime(18769):    at android.os.Looper.loop(Looper.java:137)
11-07 01:21:51.315: E/AndroidRuntime(18769):    at android.app.ActivityThread.main(ActivityThread.java:4513)
11-07 01:21:51.315: E/AndroidRuntime(18769):    at java.lang.reflect.Method.invokeNative(Native Method)
11-07 01:21:51.315: E/AndroidRuntime(18769):    at java.lang.reflect.Method.invoke(Method.java:511)
11-07 01:21:51.315: E/AndroidRuntime(18769):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:974)
11-07 01:21:51.315: E/AndroidRuntime(18769):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:741)
11-07 01:21:51.315: E/AndroidRuntime(18769):    at dalvik.system.NativeStart.main(Native Method)
11-07 01:21:51.315: E/AndroidRuntime(18769): Caused by: java.lang.NullPointerException
11-07 01:21:51.315: E/AndroidRuntime(18769):    at com.analyze.project.AnalyzeActivity$1.onReceive(AnalyzeActivity.java:197)
11-07 01:21:51.315: E/AndroidRuntime(18769):    at android.app.LoadedApk$ReceiverDispatcher$Args.run(LoadedApk.java:728)
11-07 01:21:51.315: E/AndroidRuntime(18769):    ... 9 more
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1 Answer

  1. Editorial Team

    from the log, AnalyzeActivity.java:197, you have a variable that is, unexpectedly, null on line 197.

    private BroadcastReceiver mMessageReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {

    Log.d("TAG", "onReceive1()");
    //setIntent(intent);

    ArrayList<Malware> myList;
    // use local var intent 
    myList = intent.getParcelableArrayListExtra("MalwareArray");
    Log.d("onReceive", "got myList");

    for (int i = 0; i < myList.size(); i++) {
        Malware a = myList.get(i);
        Log.d("onReceive", "App Name:" + a.getApp());
        //tv1.setText(a.getName() + " is from " + a.getState());
    }
}
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