Linux 64 bit machine java.lang:type=MemoryPool,name=Perm Gen [shared-rw],java.lang:type=MemoryPool,name=Perm Gen [shared-ro] not listed in JConsole

Question

I m running a Java Application in Linux Fedora OS 64 bit machine.I connected jconsole to Remote JMX port of JDK application . I dont see MBeans java.lang:type=MemoryPool,name=Perm Gen [shared-ro], java.lang:type=MemoryPool,name=Perm Gen [shared-rw] .I dont see Perm Gen(Shared RO) Perm Gen(Shared RW) Graphs and values under Memory Tab.Is this a bug or expected behaviour ?