6687508: Update test/sun/management jtreg tests due to sun.management.ManagementFactory class rename Summary: Modified the jtreg tests to use ManagementFactoryHelper instead Reviewed-by: emcmanus

Compiled from "HelloWorld.java"
public class HelloWorld extends java.lang.Object{
    public HelloWorld();
    public static void main(java.lang.String[]);
    public native void test();
}