Debugging in Java

Sun provides the Java Platform Debugger Architecture, an API for debugging. The debugger JDB (java debugger) is a simple demonstration of how to use the API. JDB works similarly to GDB. Netbeans and Eclipse offer more comfortable controls. Anyways here come the most important commands in JDB:

To run jdb in ubuntu (as stand-alone, or from within an IDE), make sure your hostname corresponds to your current ip address when you are running jdb (edit /etc/hosts, then restart networking). [1]

Launching of application similar to java command

jdb -classpath CP package1.package2.program

As I mentioned, basic commands resemble gdb's. There is run, cont, where (dump trace, similar to gdb's bt), print, next, step.

You set breakpoints with stop. Syntax:

stop in .[(argument_type,...)]
stop at : -- set a breakpoint at a line

As stated before, there are more sophisticated ways to debug java. This video is the first part of an introduction to debugging in java using eclipse. Enjoy!

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