cdef parse_definition(definition):
    # not a function, just a field
    if definition[0] != '(':
        return definition, None

    # it's a function!
    argdef, ret = definition[1:].split(')')
    args = []

    while len(argdef):
        c = argdef[0]

        # read the array char
        prefix = ''
        if c == '[':
            prefix = c
            argdef = argdef[1:]
            c = argdef[0]

        # native type
        if c in 'ZBCSIJFD':
            args.append(prefix + c)
            argdef = argdef[1:]
            continue

        # java class
        if c == 'L':
            c, argdef = argdef.split(';', 1)
            args.append(prefix + c + ';')

    return ret, args


cdef void check_exception(JNIEnv *j_env) except *:
    cdef jthrowable exc = j_env[0].ExceptionOccurred(j_env)
    if exc:
        j_env[0].ExceptionDescribe(j_env)
        j_env[0].ExceptionClear(j_env)
        raise JavaException('JVM exception occured')

cdef bytes lookup_java_object_name(JNIEnv *j_env, jobject j_obj):
    from reflect import ensureclass, autoclass
    ensureclass('java.lang.Object')
    ensureclass('java.lang.Class')
    cdef JavaClass obj = autoclass('java.lang.Object')(noinstance=True)
    obj.instanciate_from(create_local_ref(j_env, j_obj))
    cls = obj.getClass()
    name = cls.getName()
    ensureclass(name)
    return name.replace('.', '/')