Need to check MaxPermSize: Unrecognized VM parameter

Question

How to check maxpermsize from command line? Getting unrecorgnized VM options error. Version below

 D:\apps\Tomcat\bin>java -XX:+PrintFlagsFinal Unrecognized VM option '+PrintFlagsFinal' Could not create the Java virtual machine. D:\apps\Tomcat\bin>java -version java version "1.6.0_20" Java(TM) SE Runtime Environment (build 1.6.0_20-b02) Java HotSpot(TM) Client VM (build 16.3-b01, mixed mode) 

Answer 1

The VM option is not supported in your current version of the JVM. From this article , this is similar to Java 6u23.

Answer 2

You can use the debugger to check the actual value:

gdb -q java -ex run -ex "print MaxPermSize" -ex quit