Unrecognized VM option 'UseParNewGC' , Error: Could not create the Java Virtual Machine

jvm java-10 jvm-crash
Javacodeman113 picture Javacodeman113 · Apr 22, 2018 · Viewed 40.7k times · Source

I am trying to start a server using jre 10.0.1 64 bit. There is an obvious change in the settings for the JVM in windows start batch files. With the setting of -XX:+UseParNewGC as the reference point of the error what would this need to be changed to in order to get a JVM server start with java 10 versus the java 8 settings I have shown?

The line of code causing the error reference is:

set JAVA_PARAMETERS=-XX:+UseParNewGC -XX:+CMSIncrementalPacing -XX:+CMSClassUnloadingEnabled -XX:ParallelGCThreads=2 -XX:MinHeapFreeRatio=5 -XX:MaxHeapFreeRatio=10

Answer

Peter Lawrey picture Peter Lawrey · Apr 22, 2018

This collectors was deprecated in JDK 9 and removed in JDK 10.

https://bugs.openjdk.java.net/browse/JDK-8151084

The new default is the G1 collector and I suggest you see if that suits your needs.

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