Thanks to my colleague, Mike Whale, for sharing this: -
Javacores are one of the most powerful tools in WebSphere Application Server and the JVM. This WebSphere Support Technical Exchange is designed to provide a deep dive into Javacores and Javadumps, and includes items that even seasoned professionals may not use or know about - for example, CW states for threads one would presume to be Runnable in IBM Java 5+.
- Javacores: What, why, and how
- Tips and Tricks
- Hung Thread Detection
- Tooling
- Questions
It's from 2010, but still bloomin' relevant