Hi Bernhard,
This sounds great, thanks for the feedback. Maybe there were some permission issues as the 8u275 AdoptOpenJDK was not an official Redhat package.
We only do not recommend the 8u272 release as it could break the LDAP authentication as described here:Java 8u272 Update Warning .
But it would be good to install it under 272 and switch to 275 once it is available on the Redhat package repository (if you don’t need the LDAP functionality yet).
I haven’t found any wrong settings in the provided config files, only the heapspace assignment of 2GB (default) for the KNIME executor might considered to be raised via the option in the knime.ini file.
Best regards,
Michael