Missing unix-java library

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Hello,

I'm having an error where i*m missing unix-java when running some program:

ERROR:root:send_message: exit code=1:err=b'Missing native library dependency for dbus service: no unix-java in java.library.path\n'
ERROR:root:input: b'Missing native library dependency for dbus service: no unix-java in java.library.path'
ERROR:root:Expecting value: line 1 column 1 (char 0)
Traceback (most recent call last):
  File "./scli", line 539, in daemon_handler
    e = json.loads(line)
  File "/usr/lib64/python3.7/json/__init__.py", line 348, in loads
    return _default_decoder.decode(s)
  File "/usr/lib64/python3.7/json/decoder.py", line 337, in decode
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())
  File "/usr/lib64/python3.7/json/decoder.py", line 355, in raw_decode
    raise JSONDecodeError("Expecting value", s, err.value) from None
json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)

And I've installed libmatthew-java which I believe as the required dependency. Any idea where the missing library is ? Or what link I'm missing ?