[PyJNIus] Jnius can't find invocation class when run in service

[Hazhir]

PyJnius can't find the org.jnius.NativeInvocationHandler class when started in service.

I have an `OnCompleteListener` class that works fine when it's instantiated in the Activity. But when I instantiate it in my service, Jnius for some reason can't find its invocation handler class mentioned above.

Here's my class and the traceback:

Code:

class OnCompleteListener(PythonJavaClass):

    __javainterfaces__ = ["android/media/MediaPlayer$OnCompletionListener"]

    __javacontext__ = "app"

    def __init__(self, audio_player, **kwargs):

        super().__init__(**kwargs)

        self.called = False

        self.audio_player = audio_player

    @java_method("(Landroid/media/MediaPlayer;)V")

    def onCompletion(self, mp):

        Logger.info('AUDIO: Playback completed.')

        self.audio_player.is_complete = True

        self.audio_player.state = 'stop'

        self.audio_player.unload()

        self.audio_player.on_complete_callback()

        self.audio_player = None

Traceback:

geniustmusicplayer/geniustmusicplayer/android_audio_player.py", line 25, in __init__  # --> line 25 is super().__init__(**kwargs) line

File "jnius/jnius_proxy.pxi", line 28, in jnius.jnius.PythonJavaClass.__init__

File "jnius/jnius_proxy.pxi", line 34, in jnius.jnius.PythonJavaClass._init_j_self_ptr

File "jnius/jnius_proxy.pxi", line 165, in jnius.jnius.create_proxy_instance

File "/home/hazhir/.local/share/python-for-android/build/python-installs/geniustmusicplayer/jnius/reflect.py", line 229, in autoclass

File "jnius/jnius_export_func.pxi", line 26, in jnius.jnius.find_javaclass

File "jnius/jnius_utils.pxi", line 91, in jnius.jnius.check_exception

jnius.jnius.JavaException: JVM exception occurred: Didn't find class "org.jnius.NativeInvocationHandler" on path: DexPathList[[directory "."],nativeLibraryDirectories=[/system/lib, /vendor/lib, /data/downloads, /data/priv-downloads, /system/lib, /vendor/lib, /data/downloads, /data/priv-downloads]] java.lang.ClassNotFoundException

[planckp...@gmail.com]

This sounds like a Pyjnius issue, consider submitting. https://github.com/kivy/pyjnius/issues

Perhaps it is a classpath issue?

Try making a local copy of   https://github.com/kivy/pyjnius/blob/master/jnius/src/org/jnius/NativeInvocationHandler.java 

and set     android.add_src = NativeInvocationHandler.java

[Hazhir]

Per a suggestion for the same issue on GitHub, running autoclass('org.jnius.NativeInvocationHandler') fixed the issue.