Android/ART crash Invalid instance of…

[tshirtman]

I/python  (18450):    File "/mnt/Data/code/test/test/main/.buildozer/android/app/main.py", line 195, in <module>
I/python  (18450):    File "/mnt/Data/code/test/test/main/.buildozer/android/platform/python-for-android/build/python-install/lib/python2.7/site-packages/kivy/app.py", line 735, in run
I/python  (18450):    File "/mnt/Data/code/test/test/main/.buildozer/android/platform/python-for-android/build/python-install/lib/python2.7/site-packages/kivy/base.py", line 472, in runTouchApp
I/python  (18450):    File "/mnt/Data/code/test/test/main/.buildozer/android/platform/python-for-android/build/python-install/lib/python2.7/site-packages/kivy/core/window/window_pygame.py", line 335, in mainloop
I/python  (18450):    File "/mnt/Data/code/test/test/main/.buildozer/android/platform/python-for-android/build/python-install/lib/python2.7/site-packages/kivy/core/window/window_pygame.py", line 241, in _mainloop
I/python  (18450):    File "/mnt/Data/code/test/test/main/.buildozer/android/platform/python-for-android/build/python-install/lib/python2.7/site-packages/kivy/base.py", line 315, in idle
I/python  (18450):    File "/mnt/Data/code/test/test/main/.buildozer/android/platform/python-for-android/build/python-install/lib/python2.7/site-packages/kivy/base.py", line 300, in dispatch_input
I/python  (18450):    File "/mnt/Data/code/test/test/main/.buildozer/android/platform/python-for-android/build/python-install/lib/python2.7/site-packages/kivy/base.py", line 266, in post_dispatch_input
I/python  (18450):    File "_event.pyx", line 316, in kivy._event.EventDispatcher.dispatch (kivy/_event.c:4428)
I/python  (18450):    File "/mnt/Data/code/test/test/main/.buildozer/android/platform/python-for-android/build/python-install/lib/python2.7/site-packages/kivy/uix/behaviors.py", line 110, in on_touch_up
I/python  (18450):    File "_event.pyx", line 312, in kivy._event.EventDispatcher.dispatch (kivy/_event.c:4377)
I/python  (18450):    File "/mnt/Data/code/test/test/main/.buildozer/android/platform/python-for-android/build/python-install/lib/python2.7/site-packages/kivy/lang.py", line 1256, in custom_callback
I/python  (18450):    File "/data/data/org.kivy.showcase/files/lib/python2.7/site-packages/kivy/data/style.kv", line 184, in <module>
I/python  (18450):      on_release: root.do('copy')
I/python  (18450):    File "/mnt/Data/code/test/test/main/.buildozer/android/platform/python-for-android/build/python-install/lib/python2.7/site-packages/kivy/uix/textinput.py", line 250, in do
I/python  (18450):    File "/mnt/Data/code/test/test/main/.buildozer/android/platform/python-for-android/build/python-install/lib/python2.7/site-packages/kivy/uix/textinput.py", line 1259, in _copy
I/python  (18450):    File "/mnt/Data/code/test/test/main/.buildozer/android/platform/python-for-android/build/python-install/lib/python2.7/site-packages/kivy/core/clipboard/clipboard_android.py", line 36, in put
I/python  (18450):    File "/mnt/Data/code/test/test/main/.buildozer/android/platform/python-for-android/build/python-install/lib/python2.7/site-packages/kivy/core/clipboard/clipboard_android.py", line 50, in called
I/python  (18450):    File "/mnt/Data/code/test/test/main/.buildozer/android/platform/python-for-android/build/python-install/lib/python2.7/site-packages/android/runnable.py", line 46, in f2
I/python  (18450):    File "/mnt/Data/code/test/test/main/.buildozer/android/platform/python-for-android/build/python-install/lib/python2.7/site-packages/android/runnable.py", line 22, in __init__
I/python  (18450):    File "jnius_proxy.pxi", line 31, in jnius.jnius.PythonJavaClass.__init__ (jnius/jnius.c:21377)
I/python  (18450):    File "jnius_proxy.pxi", line 182, in jnius.jnius.create_proxy_instance (jnius/jnius.c:23587)
I/python  (18450):    File "jnius_export_class.pxi", line 556, in jnius.jnius.JavaMethod.__call__ (jnius/jnius.c:17355)
I/python  (18450):    File "jnius_conversion.pxi", line 57, in jnius.jnius.populate_args (jnius/jnius.c:5361)
I/python  (18450):    File "jnius_utils.pxi", line 70, in jnius.jnius.check_assignable_from (jnius/jnius.c:3395)
I/python  (18450):  jnius.jnius.JavaException: Invalid instance of 'org/jnius/NativeInvocationHandler' passed for a 'java/lang/reflect/InvocationHandler'
I/python  (18450): Python for android ended.

To reproduce, try to copy text in a kivy TextInput on android using ART instead of Dalvik.

Tested on android 4.4.2 on nexus 7 2013.

[tito]

Ok, got the same with 2048. #113

[tito]

Difference with there tests at https://android.googlesource.com/platform/art/+/ecbce8f/test/044-proxy/src/BasicTest.java: the invoke methods have throws Throwable. Not us.

[tito]

I got another issue after this one, so i think it's still not enough

[tito]

@dheeraj1991 This issue is not the place to discuss about your issue. Please use the mailing list, or open a new issue with logs.

[tito]

So, i get this one easily now:

NfcAdapter = autoclass("android.nfc.NfcAdapter")
PythonActivity = autoclass("org.renpy.android.PythonActivity")
context = PythonActivity.mActivity
NfcAdapter.getDefaultAdapter(context)

Again, after debugging, the code fail during the ExceptionDescribe() after the IsAssignableFrom(): the first was hiding the second one.

After commenting out the ExceptionDescribe() in check_assignable_from(), i found that IsAssignableFrom() does'nt see the relation between the context and the signature:

I/python  (16912):  Traceback (most recent call last):
I/python  (16912):    File "/home/tito/code/testnfc/main.py", line 75, in <module>
I/python  (16912):    File "/home/tito/code/python-for-android/build/python-install/lib/python2.7/site-packages/kivy/app.py", line 766, in run
I/python  (16912):    File "/home/tito/code/testnfc/main.py", line 70, in build
I/python  (16912):    File "/home/tito/code/testnfc/main.py", line 36, in nfc_init
I/python  (16912):    File "jnius/jnius_export_class.pxi", line 847, in jnius.jnius.JavaMultipleMethod.__call__ (jnius/jnius.c:22614)
I/python  (16912):    File "jnius/jnius_export_class.pxi", line 558, in jnius.jnius.JavaMethod.__call__ (jnius/jnius.c:19141)
I/python  (16912):    File "jnius/jnius_conversion.pxi", line 58, in jnius.jnius.populate_args (jnius/jnius.c:5741)
I/python  (16912):    File "jnius/jnius_utils.pxi", line 91, in jnius.jnius.check_assignable_from (jnius/jnius.c:3739)
I/python  (16912):  jnius.jnius.JavaException: Invalid instance of 'org/renpy/android/PythonActivity' passed for a 'android/content/Context'

So the previous fix is not enough, we need to find out why IsAssignableFrom was working with Dalvik and not ART.

[tito]

I just found that: https://android.googlesource.com/platform/art/+/1268b74%5E!/

The message:

Fix broken JNI IsAssignableFrom.

The expected argument order was the opposite of what the spec
dictated.

[tshirtman]

So it's not a bug in pyjnius, closing, nice digging!

[tito]

We cannot just said to our users: Try to upgrade android. Most of phones (even mine) still don't have the fix, and is not going to until Lolipop (maybe? no idea).

I'm doing a fix for it.