title: Read Java JVM startup parameters (eg -Xmx)
body: <p>I'm trying to figure out if there's a way to determine the JVM startup properties from within a running java process.  Specifically I'm trying to find out where parameters such as -Xmx (max heap size) and -XX:MaxPermSize are stored.  I'm running Sun's 1.6 jvm.</p>
  
  <p>If you're wondering why I want to do this, I have a number of JVM webservers that may or may not be configured correctly and I want to add this to the startup code check.  It's much easier for me to check in a piece of java code that gets deployed everywhere than to manually find and check all of the jvm startup files.  Right now the jvm configuration files for better or worse are not part of our build process or checked into source control.</p>