Does Java 6 open a default port for JMX remote connections?

Question

My specific question has to do with JMX as used in JDK 1.6: if I am running a Java process using JRE 1.6 with

com.sun.management.jmxremote

Answer 1

Actually there is an undocumented property that you can use to force JMX create remotely accessible connectors on random port numbers.

-Dcom.sun.management.jmxremote.authenticate="false" 
-Dcom.sun.management.jmxremote="true" 
-Dcom.sun.management.jmxremote.ssl="false" 
-Dcom.sun.management.jmxremote.port="0"
-Dcom.sun.management.jmxremote.local.only="false"

Last two properties are of most importance.