Services cannot start due to unrecognized JVM option in newer JDK version

[DaasDaham]

System Information
OS: Linux (Ubuntu 18.04)
Java Version: OpenJDK 1.11.0

Error information
The first service started from ./startservices.sh results in the error: ERROR: Process 17511 ontologyInfoService has died

The log file for ontologyInfoService reads
Unrecognized option: -Xincgc Error: Could not create the Java Virtual Machine. Error: A fatal exception has occurred. Program will exit.

This error is caused due to the JVM option -Xincgc (Use incremental garbage collection) being deprecated in Java 8 and being entirely removed in further versions.

A quick and dirty fix is to remove the -Xincgc option from the .env file. Another fix can be to override from ENV_OVERRIDE

semtk/.env

Line 46 in 87dfae7

export JVM_OPTIONS=${JVM_OPTIONS:-"-Xmx20G -Xincgc"}