jstat undocumented

jstat -J-Djstat.showUnsupported=true -name btrace.com.sun.btrace.samples.ThreadCounter.count 11674

http://rednaxelafx.iteye.com/blog/796343

http://rednaxelafx.iteye.com/blog/790875

kensipe.blogspot.com/2009/06/btrace-and-jstat.html