-server
-Xms512m
-Xmx2048m
-XX:MaxPermSize=512m
-XX:ReservedCodeCacheSize=256m
-XX:+UseCodeCacheFlushing
-XX:+UseCompressedOops
-XX:+UseConcMarkSweepGC
-XX:+AggressiveOpts
-XX:+CMSClassUnloadingEnabled
-XX:+CMSIncrementalMode
-XX:+CMSIncrementalPacing
-XX:CMSIncrementalDutyCycleMin=0
-XX:-TraceClassUnloading
-XX:+TieredCompilation