Android bundle: java.lang.NullPointerException

Question

I Am trying to send a Parcelable object from an Activity to a IntentSerivce. The code below was working well, I have made changes to the project but not that section, and have no idea why this has stopped working.

Activity:

Bundle bundle = new Bundle();
bundle.putParcelable("client", client);
bundle.putParcelable("job", job);

Intent intent = new Intent(this, EmailService.class);
intent.putExtra("bundle", bundle);
intent.putExtra("type", "type1");

startService(intent);

Service:

protected void onHandleIntent(Intent intent) {
  String type = intent.getStringExtra("type");

  Bundle bundle = intent.getBundleExtra("bundle");
  Client client = bundle.getParcelable("client");
  ...

The line Client client = bundle.getParcelable("client"); causes java.lang.NullPointerException: Attempt to get length of null array. The Client object is not null in the Activity and the bundle is not null in the Service. I am also able to pass my Client object around between activities without any problems.

Why has this stopped working / How do I fix this?

If Service is a `new Activity` then try to move everything that is inside `onHandleIntent` to `onCreate`, it feels that your onHandleIntent is getting called to quickly and the transition didn't happen yet — Lamour, Sep 24 '17 at 04:52
Why did you use `intent.putExtra("bundle", bundle);`? you can use `intent.putExtra("client", client); intent.putExtra("job", job);` instead. — ישו אוהב אותך, Sep 24 '17 at 05:02
@Lamar Service runs in the background, I am trying to start it from an activity. — meeeee, Sep 24 '17 at 05:09
@ישו אוהב אותך I removed the bundle now the line: String type = intent.getStringExtra("type"); Is crashing. — meeeee, Sep 24 '17 at 05:15
That's strange. Could you add your `IntentService` code to your question? — ישו אוהב אותך, Sep 24 '17 at 05:20
OK, I figured it out. I had made changes to the job class, however I made a mistake with the parcelable implementation, which was messing up the entire bundle. Thanks for your help guys. — meeeee, Sep 24 '17 at 05:48

score 0 · Answer 1 · answered Sep 24 '17 at 05:53

You dont have to put bundle. You can put your object or dto using intent . Then Parse this object in OnCreate of your activity. Thought you need to serialize your object or dto.

Example:

Start activity Like this

Intent intent = new Intent(this, EmailService.class); intent.putExtra("client", client); intent.putExtra("job", job);

Then in Oncreate of you Activity parse like this

Client client = (Client) getIntent().getSerializableExtra("client");
Job job = (Job) getIntent().getSerializableExtra("job");

Android bundle: java.lang.NullPointerException

1 Answers1