JAVA_OPTS="-Xms2000m -Xmx2000m -Xss256k -Djava.net.preferIPv4Stack=true -XX:+UseG1GC -XX:+UnlockExperimentalVMOptions"
JAVA_OPTS="$JAVA_OPTS -Xloggc:../standalone/log/jboss_%p.gc.log -verbose:gc -XX:+PrintGCDetails -XX:+PrintGCTimeStamps -XX:+PrintGCDateStamps -XX:-PrintTenuringDistribution  -XX:-PrintAdaptiveSizePolicy -XX:+PrintReferenceGC"