Sorry, but I have no idea why folders with ‘?’ as name are created.
Are there also other files which do not have geotools in the name?
Maybe geotools is using the preferences api wrong or we are using geotools wrong.
Or maybe some path is wrongly configured in your container?
I don’t know where this might occur in the code.
The file name looks like a path which should actually start in the user home directory, or so.
Can you post one of the graphs where this happens?
I’m running gpt in a docker image orchestrated by CWL which runs the containers in read-only mode.
To allow SNAP to write in .snap, we use /tmp/.snap and tell CWL to set the env variables accordingly.
My wild guess is that this info is not propagated everywhere and thus the initialization process of SNAP (and underlying modules e.g. geotools) will not find a “valid” .snap location a create the ‘?’ folder.
For info, snap.properties and snap.conf are updated with the correct values but we’re potentially doing this wrong.