How can I see which garbage collector java is using

Question

The Java Virtual Machine supports several garbage collection strategies.

This article explains them.

Now I am wondering which (automatically selected) strat

Answer 1

jmap -heap

Prints a heap summary. GC algorithm used, heap configuration and generation wise heap usage are printed.

http://java.sun.com/javase/6/docs/technotes/tools/share/jmap.html