threadDump on java6 will 500. should revert to java5 compatible threadDump

HTTP Status 500 -

type Exception report

message

description The server encountered an internal error () that prevented it from
fulfilling this request.

exception

javax.servlet.ServletException: java.io.IOException: Remote call failed
org.kohsuke.stapler.Stapler.invoke(Stapler.java:316)
org.kohsuke.stapler.MetaClass$15.dispatch(MetaClass.java:361)
org.kohsuke.stapler.Stapler.invoke(Stapler.java:307)
org.kohsuke.stapler.MetaClass$7.doDispatch(MetaClass.java:208)
org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:30)
org.kohsuke.stapler.Stapler.invoke(Stapler.java:307)
org.kohsuke.stapler.Stapler.invoke(Stapler.java:244)
org.kohsuke.stapler.Stapler.service(Stapler.java:92)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
hudson.BasicAuthenticationFilter.doFilter(BasicAuthenticationFilter.java:79)

root cause

java.io.IOException: Remote call failed
hudson.remoting.Channel.call(Channel.java:265)
hudson.model.Computer.getThreadDump(Computer.java:295)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
java.lang.reflect.Method.invoke(Method.java:585)
org.kohsuke.stapler.Function$InstanceFunction.invoke(Function.java:103)
org.kohsuke.stapler.MetaClass$7.doDispatch(MetaClass.java:208)
org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:30)
org.kohsuke.stapler.Stapler.invoke(Stapler.java:307)
org.kohsuke.stapler.MetaClass$15.dispatch(MetaClass.java:361)
org.kohsuke.stapler.Stapler.invoke(Stapler.java:307)
org.kohsuke.stapler.MetaClass$7.doDispatch(MetaClass.java:208)
org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:30)
org.kohsuke.stapler.Stapler.invoke(Stapler.java:307)
org.kohsuke.stapler.Stapler.invoke(Stapler.java:244)
org.kohsuke.stapler.Stapler.service(Stapler.java:92)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
hudson.BasicAuthenticationFilter.doFilter(BasicAuthenticationFilter.java:79)

root cause

java.lang.NoSuchMethodError:
java.lang.management.ThreadMXBean.isObjectMonitorUsageSupported()Z
hudson.Functions.getThreadInfos(Functions.java:497)
hudson.model.Computer$GetThreadDump.call(Computer.java:301)
hudson.model.Computer$GetThreadDump.call(Computer.java:298)
hudson.remoting.UserRequest.perform(UserRequest.java:57)
hudson.remoting.UserRequest.perform(UserRequest.java:22)
hudson.remoting.Request$2.run(Request.java:178)
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:650)
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:675)
java.lang.Thread.run(Thread.java:595)