I am in agreement with @sf -- this is not trivial. If this is to continue being open source, and if it doesn't support modern java, then at the least a big note needs to be placed somewhere, or a warning on run. I was able to get it working by downloading jre 8.0 for Linux x64 from here (https://javadl.oracle.com/webapps/download/AutoDL?BundleId=246799_424b9da4b48848379167015dcc250d8d), but native packages and newer versions don't work at all with the issues listed above (i.e. can't remove lines,...