[abin@lee ~]$ java -XX:+PrintFlagsFinal -version | grep ThreadStackSize
intx CompilerThreadStackSize = 0 {pd product}
intx ThreadStackSize = 1024 {pd product}
intx VMThreadStackSize = 1024 {pd product}
java version "1.7.0_80-ea"
Java(TM) SE Runtime Environment (build 1.7.0_80-ea-b02)
Java HotSpot(TM) 64-Bit Server VM (build 24.80-b07, mixed mode)