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jnius.JavaException: Class not found #106

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nesergen opened this issue Apr 13, 2014 · 4 comments
Closed

jnius.JavaException: Class not found #106

nesergen opened this issue Apr 13, 2014 · 4 comments

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@nesergen
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Ubuntu 12.04, java oracle jdk 1.8.0, python 2.7, pyjnius latest

Trying to make programm with python, kivy and pyjnius.
After run the program error raised:

@sergen-pc:~$ python /home/sergen/PythonExp/kivy_exp/db_extr_v3/main.py
[INFO   ] Kivy v1.8.1-dev
[INFO   ] [Python      ] v2.7.3 (default, Feb 27 2014, 19:58:35) 
[GCC 4.6.3]
[INFO   ] [Logger      ] Record log in /home/sergen/.kivy/logs/kivy_14-04-14_0.txt
[INFO   ] [Factory     ] 157 symbols loaded
[DEBUG  ] [Cache       ] register <kv.lang> with limit=None, timeout=Nones
[DEBUG  ] [Cache       ] register <kv.image> with limit=None, timeout=60s
[DEBUG  ] [Cache       ] register <kv.atlas> with limit=None, timeout=Nones
[INFO   ] [Image       ] Providers: img_tex, img_dds, img_pygame, img_pil, img_gif 
[DEBUG  ] [Cache       ] register <kv.texture> with limit=1000, timeout=60s
[DEBUG  ] [Cache       ] register <kv.shader> with limit=1000, timeout=3600s
[INFO   ] [Text        ] Provider: pygame
[DEBUG  ] [Window      ] Ignored <egl_rpi> (import error)
[INFO   ] [Window      ] Provider: pygame(['window_egl_rpi'] ignored)
[DEBUG  ] [Window      ] Display driver x11
[DEBUG  ] [Window      ] Actual window size: 800x600
[DEBUG  ] [Window      ] Actual color bits r8 g8 b8 a0
[DEBUG  ] [Window      ] Actual depth bits: 24
[DEBUG  ] [Window      ] Actual stencil bits: 8
[DEBUG  ] [Window      ] Actual multisampling samples: 2
[INFO   ] [GL          ] OpenGL version <3.3.0 NVIDIA 331.20>
[INFO   ] [GL          ] OpenGL vendor <NVIDIA Corporation>
[INFO   ] [GL          ] OpenGL renderer <GeForce 8600 GT/PCIe/SSE2>
[INFO   ] [GL          ] OpenGL parsed version: 3, 3
[INFO   ] [GL          ] Shading version <3.30 NVIDIA via Cg compiler>
[INFO   ] [GL          ] Texture max size <8192>
[INFO   ] [GL          ] Texture max units <32>
[DEBUG  ] [Shader      ] Fragment compiled successfully
[DEBUG  ] [Shader      ] Vertex compiled successfully
[DEBUG  ] [ImagePygame ] Load </usr/lib/python2.7/dist-packages/kivy/data/glsl/default.png>
[INFO   ] [Window      ] virtual keyboard not allowed, single mode, not docked
[DEBUG  ] [App         ] Loading kv </home/sergen/PythonExp/kivy_exp/db_extr_v3/my.kv>
[DEBUG  ] [Atlas       ] Load </usr/lib/python2.7/dist-packages/kivy/data/../data/images/defaulttheme.atlas>
[DEBUG  ] [Atlas       ] Need to load 1 images
[DEBUG  ] [Atlas       ] Load </usr/lib/python2.7/dist-packages/kivy/data/../data/images/defaulttheme-0.png>
[DEBUG  ] [ImagePygame ] Load </usr/lib/python2.7/dist-packages/kivy/data/../data/images/defaulttheme-0.png>
[DEBUG  ] [Cache       ] register <kv.loader> with limit=500, timeout=60s
[INFO   ] [Loader      ] using a thread pool of 2 workers
[DEBUG  ] [Cache       ] register <textinput.label> with limit=None, timeout=60.0s
[DEBUG  ] [Cache       ] register <textinput.width> with limit=None, timeout=60.0s
[INFO   ] [GL          ] NPOT texture support is available
[INFO   ] [OSC         ] using <multiprocessing> for socket
[DEBUG  ] [Base        ] Create provider from mouse
[DEBUG  ] [Base        ] Create provider from probesysfs
[DEBUG  ] [ProbeSysfs  ] using probsysfs!
[INFO   ] [Base        ] Start application main loop
self instance <__main__.Root object at 0x2da3390>
Конец

[DEBUG  ] [Window      ] Display driver x11
[DEBUG  ] [Window      ] Actual window size: 600x800
[DEBUG  ] [Window      ] Actual color bits r8 g8 b8 a0
[DEBUG  ] [Window      ] Actual depth bits: 24
[DEBUG  ] [Window      ] Actual stencil bits: 8
[DEBUG  ] [Window      ] Actual multisampling samples: 2
OK import jnius
[INFO   ] [Base        ] Leaving application in progress...
 Traceback (most recent call last):
   File "/home/sergen/PythonExp/kivy_exp/db_extr_v3/main.py", line 275, in <module>
     MyApp().run()
   File "/usr/lib/python2.7/dist-packages/kivy/app.py", line 800, in run
     runTouchApp()
   File "/usr/lib/python2.7/dist-packages/kivy/base.py", line 481, in runTouchApp
     EventLoop.window.mainloop()
   File "/usr/lib/python2.7/dist-packages/kivy/core/window/window_pygame.py", line 381, in mainloop
     self._mainloop()
   File "/usr/lib/python2.7/dist-packages/kivy/core/window/window_pygame.py", line 287, in _mainloop
     EventLoop.idle()
   File "/usr/lib/python2.7/dist-packages/kivy/base.py", line 324, in idle
     self.dispatch_input()
   File "/usr/lib/python2.7/dist-packages/kivy/base.py", line 309, in dispatch_input
     post_dispatch_input(*pop(0))
   File "/usr/lib/python2.7/dist-packages/kivy/base.py", line 275, in post_dispatch_input
     wid.dispatch('on_touch_up', me)
   File "_event.pyx", line 316, in kivy._event.EventDispatcher.dispatch (kivy/_event.c:4555)
   File "/usr/lib/python2.7/dist-packages/kivy/uix/behaviors.py", line 110, in on_touch_up
     self.dispatch('on_release')
   File "_event.pyx", line 312, in kivy._event.EventDispatcher.dispatch (kivy/_event.c:4509)
   File "/usr/lib/python2.7/dist-packages/kivy/lang.py", line 1397, in custom_callback
     exec(__kvlang__.co_value, idmap)
   File "/home/sergen/PythonExp/kivy_exp/db_extr_v3/my.kv", line 22, in <module>
     on_release: root.parent.fast_start()
   File "/home/sergen/PythonExp/kivy_exp/db_extr_v3/main.py", line 52, in fast_start
     self.ConnectDB()
   File "/home/sergen/PythonExp/kivy_exp/db_extr_v3/main.py", line 65, in ConnectDB
     b=jnius.autoclass('org.h2.jdbcx.JdbcConnectionPool')
   File "/usr/local/lib/python2.7/dist-packages/jnius/reflect.py", line 150, in autoclass
     c = find_javaclass(clsname)
   File "jnius_export_func.pxi", line 23, in jnius.find_javaclass (jnius/jnius.c:12229)
 jnius.JavaException: Class not found 'org/h2/jdbcx/JdbcConnectionPool'

"org/h2/jdbcx/JdbcConnectionPool" is connector for DataBase copied to the "/usr/lib/jvm/jdk1.8.0/jre/lib"

test of pyjnius printing this:

@sergen-pc:~/PythonExp/pyjnius-master$ make tests
javac jnius/src/org/jnius/NativeInvocationHandler.java
python setup.py build_ext --inplace -f -g
/usr/lib/python2.7/distutils/dist.py:267: UserWarning: Unknown distribution option: 'install_requires'
  warnings.warn(msg)
running build_ext
cythoning jnius/jnius.pyx to jnius/jnius.c
warning: jnius/jnius.pyx:2:0: __getslice__, __setslice__, and __delslice__ are not supported by Python 3, use __getitem__, __setitem__, and __delitem__ instead
building 'jnius' extension
gcc -pthread -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fPIC -g -I/usr/lib/jvm/jdk1.8.0/include -I/usr/lib/jvm/jdk1.8.0/include/linux -I/usr/include/python2.7 -c jnius/jnius.c -o build/temp.linux-x86_64-2.7/jnius/jnius.o
jnius/jnius.c: In function ‘__pyx_f_5jnius_get_jnienv’:
jnius/jnius.c:3259:3: warning: passing argument 2 of ‘(*__pyx_v_5jnius_jvm)->AttachCurrentThread’ from incompatible pointer type [enabled by default]
jnius/jnius.c:3259:3: note: expected ‘void **’ but argument is of type ‘const struct JNINativeInterface_ ***’
jnius/jnius.c: In function ‘__pyx_pf_5jnius_13MetaJavaClass_4resolve_class’:
jnius/jnius.c:13094:30: warning: assignment from incompatible pointer type [enabled by default]
jnius/jnius.c:13103:30: warning: assignment from incompatible pointer type [enabled by default]
jnius/jnius.c: In function ‘__pyx_f_5jnius_convert_python_to_jobject’:
jnius/jnius.c:9190:21: warning: ‘__pyx_v_retmidinit’ may be used uninitialized in this function [-Wuninitialized]
jnius/jnius.c:9190:21: warning: ‘__pyx_v_retclass’ may be used uninitialized in this function [-Wuninitialized]
gcc -pthread -shared -Wl,-O1 -Wl,-Bsymbolic-functions -Wl,-Bsymbolic-functions -Wl,-z,relro -g build/temp.linux-x86_64-2.7/jnius/jnius.o -L/usr/lib/jvm/jdk1.8.0/jre/lib/amd64/server -ljvm -o /home/sergen/PythonExp/pyjnius-master/jnius/jnius.so -Wl,-rpath /usr/lib/jvm/jdk1.8.0/jre/lib/amd64/server
cd tests && javac org/jnius/HelloWorld.java
cd tests && javac org/jnius/BasicsTest.java
cd tests && javac org/jnius/MultipleMethods.java
cd tests && javac org/jnius/SimpleEnum.java
cd tests && javac org/jnius/InterfaceWithPublicEnum.java
cd tests && javac org/jnius/ClassArgument.java
cd tests && env PYTHONPATH=..: nosetests-2.7 -v
test_assignable (test_assignable.AssignableFrom) ... ok
test_class_not_found (test_bad_declaration.BadDeclarationTest) ... ok
test_invalid_attribute (test_bad_declaration.BadDeclarationTest) ... ok
test_invalid_static_call (test_bad_declaration.BadDeclarationTest) ... ok
test_with_too_much_arguments (test_bad_declaration.BadDeclarationTest) ... ok
test_instance_fields (test_basics.BasicsTest) ... ok
test_instance_methods (test_basics.BasicsTest) ... ok
test_instances_methods_array (test_basics.BasicsTest) ... ok
test_instances_methods_params (test_basics.BasicsTest) ... ok
test_instances_methods_params_array_byte (test_basics.BasicsTest) ... ok
test_instances_methods_params_object_list_float (test_basics.BasicsTest) ... ok
test_instances_methods_params_object_list_int (test_basics.BasicsTest) ... ok
test_instances_methods_params_object_list_long (test_basics.BasicsTest) ... ok
test_instances_methods_params_object_list_str (test_basics.BasicsTest) ... ok
test_return_array_as_object_array_of_strings (test_basics.BasicsTest) ... ok
test_return_array_as_object_of_integers (test_basics.BasicsTest) ... ok
test_static_fields (test_basics.BasicsTest) ... ok
test_static_methods (test_basics.BasicsTest) ... ok
test_string_arg_for_byte_array (test_bytearray.StringArgumentForByteArrayTest) ... ok
test_multiple_constructors (test_cast.MultipleSignatureTest) ... ok
test_static_methods (test_class_argument.BasicsTest) ... ok
test_enum (test_enum.SimpleEnum) ... ok
test_value (test_enum.SimpleEnum) ... ok
test_printf (test_implementation.ImplementationTest) ... hi
hi jnius other string
ok
test_println (test_implementation.ImplementationTest) ... 
ok
test_unicode (test_implementation.ImplementationTest) ... éok
test_reflect_enum_in_interface (test_interface.Interface) ... ok
test_reflect_interface (test_interface.Interface) ... ok
test_multiple_constructors (test_method_multiple_signatures.MultipleSignature) ... ok
test_multiple_methods (test_method_multiple_signatures.MultipleSignature) ... ok
test_multiple_methods_no_args (test_method_multiple_signatures.MultipleSignature) ... ok
test_multiple_methods_one_arg (test_method_multiple_signatures.MultipleSignature) ... ok
test_multiple_methods_two_args (test_method_multiple_signatures.MultipleSignature) ... ok
test_multiple_methods_two_args_and_varargs (test_method_multiple_signatures.MultipleSignature) ... ok
test_multiple_methods_two_string_and_an_integer (test_method_multiple_signatures.MultipleSignature) ... ok
test_multiple_methods_two_string_and_two_integers (test_method_multiple_signatures.MultipleSignature) ... ok
test_multiple_methods_varargs (test_method_multiple_signatures.MultipleSignature) ... ok
test_string_output_args (test_output_args.OutputArgs) ... ok
Failure: Exception (Invalid "]" character in definition "Landroid/bluetooth/BluetoothDevice;IB[])V") ... ERROR
test_stack (test_reflect.ReflectTest) ... ok
test_helloworld (test_simple.HelloWorldTest) ... ok

======================================================================
ERROR: Failure: Exception (Invalid "]" character in definition "Landroid/bluetooth/BluetoothDevice;IB[])V")
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/nose/loader.py", line 390, in loadTestsFromName
    addr.filename, addr.module)
  File "/usr/lib/python2.7/dist-packages/nose/importer.py", line 39, in importFromPath
    return self.importFromDir(dir_path, fqname)
  File "/usr/lib/python2.7/dist-packages/nose/importer.py", line 86, in importFromDir
    mod = load_module(part_fqname, fh, filename, desc)
  File "/home/sergen/PythonExp/pyjnius-master/tests/test_proxy.py", line 153, in <module>
    TestBadSignature()
  File "jnius_proxy.pxi", line 42, in jnius.PythonJavaClass.__init__ (jnius/jnius.c:22764)
  File "jnius_utils.pxi", line 32, in jnius.parse_definition (jnius/jnius.c:3705)
Exception: Invalid "]" character in definition "Landroid/bluetooth/BluetoothDevice;IB[])V"

----------------------------------------------------------------------
Ran 41 tests in 0.425s

FAILED (errors=1)
make: *** [tests] Error 1

If I write in python this...

>>> from jnius import autoclass
>>> autoclass('java.lang.System').out.println('Hello world')

...all is OK.

when I worked with OpenJava everything worked normally, with JavaSun it doesn't work.
@nesergen
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nesergen commented May 7, 2014

solved. added folder with .jar to the CLASSPATH

@nesergen nesergen closed this as completed May 7, 2014
@dessant dessant changed the title jnius.JavaException: Class not found jnius.JavaException: Class not found Jan 15, 2015
@kakkarotssj
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@nesergen . Can you please explain in detail what you did to solve this problem, it looks like I having the similar problem now.
Thanks

@nesergen
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nesergen commented Mar 1, 2017 •
edited
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@kakkarotssj . I think I did this : export CLASSPATH=/usr/local/java/tools.jar:$CLASSPATH
where /usr/local/java/tools.jar the path to your jar file

@chetankoona
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add
from jnius import JavaException

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@nesergen @kakkarotssj @chetankoona