get_superclass 有一个错误，会导致register_natives 中获取的clazz_id不正确

[pony5551]

我的代码修改如下
@native_method
def get_superclass(self, uc, env, clazz_idx):
"""
If clazz represents any class other than the class Object, then this function returns the object that represents the superclass of the class specified by clazz.

    If clazz specifies the class Object, or clazz represents an interface, this function returns NULL.
    """
    clazz = self.get_reference(clazz_idx)
    if not isinstance(clazz, jclass):
        raise ValueError('Expected a jclass.')
    
    # pony modfy start
    # Create class instance.
    class_obj = clazz.value
    pyclass = class_obj
    logger.debug("JNIEnv->GetSuperClass (%s) is called, index %d" % (pyclass.jvm_name, clazz_idx) )

    pyclazz_super = pyclass.jvm_super
    if (not pyclazz_super):
        raise RuntimeError("super class for %s is None!!! you should at least inherit Object!!!")
    #
    logger.debug("JNIEnv->GetSuperClass (%s) return (%s)"%(pyclass.jvm_name, pyclazz_super.jvm_name))
    # clazz_super_object = pyclazz_super.class_object
    return self.add_local_reference(jclass(pyclazz_super))

    # pony modfy end