How to read the objects on the Hotspot JVM Heap, by implementing the
Heap Visitor interface in one of its packages. Want source code for
reading the heap, which displays the eden space,and old generation.

u can check the program named "jvmstat", this program show all the
informations u need in visual mode.

Open-source, check the code.
http://java.sun.com/performance/jvmstat/

I am running it on the unix server...I cant open jvmstat there....and
I want to display the objects on the heap....with seggregating the
young and old generation, but I think jvmstat doesnt give the object
list.