Custom JobIntentService onHandleWork not called

I had the same problem (worked fine on a pre-O device, no indication of anything happening whatsoever on an O-device). Today, I tried again with exactly the same code as yesterday, now it works - only difference is that I rebooted the device in between.

My current theory is that my initial setup did not work; my current one does and just redeploying new code does not clear out the broken state from the JobScheduler; a reboot or an uninstall/reinstall of the package does.

The setup that's working now (migrated from a former IntentService):

<service
    android:name=".MyJobIntentService"
    android:exported="false"
    android:permission="android.permission.BIND_JOB_SERVICE"/>

and start with

Intent intent = new Intent(); 
intent.putExtra(EXTRA_NAME, extraValue);
JobIntentService.enqueueWork(context, MyJobIntentService.class, FIXED_JOB_ID, intent);

Note that the intent is not an explicit intent (i.e., the ComponentName is not set).

I had the same issue after upgrading from IntentService to JobIntentService. Make sure you remove this method from your old implementation:

@Override
public IBinder onBind(Intent intent) {
    return null;
}

For me this solved the problem, and now it works both on pre- and post-Oreo.