"jdk-12/bin/java"^
 -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC^
 -XshowSettings:vm -Xlog:gc:con -version
Consider -XX:+ClassUnloadingWithConcurrentMark
 if large pause times are observed on class-unloading sensitive workloads
Heuristics ergonomically sets -XX:+ExplicitGCInvokesConcurrent
Heuristics ergonomically sets -XX:+ShenandoahImplicitGCInvokesConcurrent
Using Shenandoah
VM settings:
    Max. Heap Size (Estimated): 1.50G
    Using VM: OpenJDK 64-Bit Server VM

openjdk version "12" 2019-03-19
OpenJDK Runtime Environment Zulu12.1+3-CA (build 12+33)
OpenJDK 64-Bit Server VM Zulu12.1+3-CA (build 12+33, mixed mode, sharing)
Cancelling GC: Stopping VM