Is it possible to get the command used to launch the jvm in java?

Question

I would like to know if it is possible to get from code the command used to launch a java program.

E.g. if I launch a java program with:

 java -cp li         


        

Answer 1

You can use this to retrieve the VM parameters :

public static void main(String args[]) {
    List inputArguments = ManagementFactory.getRuntimeMXBean().getInputArguments();
    System.out.println("input arguments = " + inputArguments);
}

However it won't give you all the command line (only gives the JVM arguments, no main class nor parameters). Sample output:

input arguments = [-Dfile.encoding=UTF-8, -XX:-UseTLAB, -Xms2000m, -Xmx2000m, -XX:+PrintCompilation, -XX:+PrintGC]