compatibility with java 11

[Former user]

module don't seem to be compatible with java version 11.

In templace solr.in.sh.epp, in GC_TUNE section, -XX:+UseParNewGC is deprecated since version 9. There is multiple references to java8 in the module.

[Michael Speth]

Thank you for submitting this issue, I will aim to resolving it this month (March).

[Michael Speth]

I have removed the UseParNewGC parameter as the virtual machine will just default to the appropriate GC.

[Michael Speth]

This has been deployed in version 6.0.10