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/* BroadcastReceiver */

I wanted to send and receive my own broadcast intent, so I defined MyBroadcastReceiver class in MyAndroidActivity class which is the main activity class launched by Android. Since Java language doesn’t allow to define two or more public classes in same Java source file, I declared MyBroadcastReceiver class with no modifier (package-private). As a result, I got cryptic exception “IllegalAccessException”:

DalvikVM[localhost:8600]
	Thread [<1> main] (Suspended (exception RuntimeException))
		ActivityThread.handleReceiver(ActivityThread$ReceiverData) line: 1773
		ActivityThread.access$2400(ActivityThread, ActivityThread$ReceiverData) line: 117
		ActivityThread$H.handleMessage(Message) line: 981
		ActivityThread$H(Handler).dispatchMessage(Message) line: 99
		Looper.loop() line: 130
		ActivityThread.main(String[]) line: 3683
		Method.invokeNative(Object, Object[], Class, Class[], Class, int, boolean) line: not available [native method]
		Method.invoke(Object, Object...) line: 507
		ZygoteInit$MethodAndArgsCaller.run() line: 839
		ZygoteInit.main(String[]) line: 597
		NativeStart.main(String[]) line: not available [native method]
	Thread [<8> Binder Thread #2] (Running)
	Thread [<7> Binder Thread #1] (Running)

After a bit struggling, I found out the answer: subclass of BroadcastReceiver must be declared with public modifier

A subclass of BroadcastReceiver is called from Android system, so I had to define it with public modifier. This means you can’t define it in same Java source file. I tried to define it as public inner class of MyAndroidActivity but failed.

Thanks to this page: [StackOverflow] Android: java.lang.IllegalAccessException when attempting to use a custom “Application” class