Distributed NetBeans Integrated Development Environment (IDE) provides support for the Remote 3GL debug interface for OpenVMS. The Distributed NetBeans Remote 3GL debug interface allows you to debug all 3GL programs such as C, C++, FORTRAN, and so on.
See the following topics for more information about using the Distributed NetBeans Remote 3GL debug interface.
Command Input Box (in output pane)
See the Using NetBeans IDE 7.0.1 Debugging
Applications help topics for additional information.
http://netbeans.org/kb/65/java/debug-multithreaded.html