JVM defaults: drop options no longer supported in recent Java versions #130
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On Debian/buster with openjdk-11-jre-headless graylog-server
fails to start with:
| graylog-server[31096]: OpenJDK 64-Bit Server VM warning: Option UseConcMarkSweepGC was deprecated in version 9.0 and will likely be removed in a future release
| graylog-server[31096]: Unrecognized VM option 'UseParNewGC'
| graylog-server[31096]: Error: Could not create the Java Virtual Machine.
| graylog-server[31096]: Error: A fatal exception has occurred. Program will exit.
| systemd[1]: graylog-server.service: Main process exited, code=exited, status=1/FAILURE
| systemd[1]: graylog-server.service: Failed with result 'exit-code'.
UseParNewGC was deprecated in JDK 9 and removed in JDK 10,
now defaulting to the G1 collector, also see
https://bugs.openjdk.java.net/browse/JDK-8151084
While at it disable the UseConcMarkSweepGC option, which
was also deprecated and will probably be removed in a later
version.