I already found out that the script tries to read the file .lgd-nfy0 and I already set an environment variable so that the file is put into the temp folder of openhab and has the owner and group set to the openhab user and file permissions are set to 644.
I just tried a simple test script in the pythonscripting console and I have the same error when executing those two lines:
file = open(“/openhab/userdata/tmp/.lgd-nfy0”, “rb”)
file.read(16)
The .lgd-nfy0 file is a pipe file that is created from the native library and it has always the size 0. Could there be a problem reading those files in GraalPy?