interface JNISafety

Most times a Java class calls a Haxe function, it does so on the UI thread, which can lead to thread-related errors. These errors can be avoided by switching back to the main thread before executing any code.

Usage:

class MyClass implements JNISafety
{
	@:runOnMainThread
	public function callbackFunction(data:Dynamic):Void
	{
		// Code here is guaranteed to run on Haxe's main thread. It's safe
		// to call `callbackFunction` via JNI.
	}

	public function notACallbackFunction():Void
	{
		// Code here will run on whichever thread calls the function. It may
		// not be safe to call `notACallbackFunction` via JNI.
	}
}