Issue trying to implement class that is originally a Java interface

Orekit Python Wrapper usage
4

Hi @ShikaDing, Hi Everyone,

After few tests it seems that the workaround poposed by @ShikaDing is not suitable for my issue. But maybe something is wrong with my code.
Let start with declaring a new class that inherits from PythonAttitudeProvider:

from org.orekit.attitudes import PythonAttitudeProvider
from org.orekit.frames import FramesFactory, LOFType
from org.hipparchus.geometry.euclidean.threed import Vector3D

class MyAttitudeProvider(PythonAttitudeProvider):

    def __init__(self,params):
        self.params = params

    def getAttitude(self,pvProv, date, frame):
        # code to compute a rotation object from the input arguments
        return Attitude(date, frame, rotation.revert(), Vector3D.ZERO, Vector3D.ZERO)

Then create an instance of this class

In[1]: from MyAttitudeProvider import MyAttitudeProvider
In[2]: attProv = MyAttitudeProvider(1)

But surprisingly, the type of the instance attProv is not the one I expected

In[3]: type(attProv)
Out[3]: jcc.FinalizerProxy

At this step, I am little bit lost because of the following surprising behaviour.
In one hand, no exception is raised while constructing others objects like org.orekit.forces.maneuvers.Maneuver. On the other hand, the Maneuver.getAttitudeOverride() return a null object. Consequently, the maneuver does not provide the expected acceleration during the propagation.
Maybe @petrus.hyvonen or @ShikaDing or anyone in the community, can you help me to understand this issue and find a way to overcome this drawback.

Best regards to the community

Christophe