Tools
YouDebug is a debugger but it's not a debugger. It's a debugger, because it builds on top of Java Platform Debug Architecture, and therefore is capable of doing everything your debugger can do — such as attaching to another process, breaking when certain conditions are met, inspect/manipulate variables, and so on.
But at the same time, it's not your typical debugger, because it's not interactive. Instead of using point-and-click and GUI. You don't need source code either. Instead, it comes with a DSL-like syntax sugar on top of Groovy that controls what YouDebug would do against the target program
J2SE
Today I've digged deeper into one of the nastiest problems I ever encounted since I became a Java programmer.
How do you seek to arbitrary positions in a file that's 2^64 bytes long?
Web Applications
I wrote an OpenID provider for java.net at http://openid4javanet.dyndns.org/. This allows peripheral systems to integrate with java.net more nicely
