Visual demonstrations of Java SE 6 Garbage Collection

This is a great article that gives Flash videos of various VM configuration options and demonstrates the Garbage Collection behavior of the Java SE 6 VM when configured sub-optimally for a given application.

I don’t know if anyone has thought of this before but seeing the patterns develop as they happen via Flash videos is a great way to convey what is happening, that would be far more difficult to express with just words alone.

Sun offer Technology Compatibility Kit for Open Source Java

Sun has long used it’s Technology Compatibility Kit (or TCK) as the benchmark for testing compliance against specification standards, for example testing that a vendors Java EE Application Server meets the specification requirements.

Since Java in now Open Sourced, Sun has made available the TCK for Java SE so that people working on building on top of the OpenJDK can check compatibility with the SE specification.