This is in an interesting post from Chris Bailey's (IBM Java Service Architect, JTC Java Technology Center) blog on "IBM on troubleshooting Java applications" (Please refer to the book-marks on the community for the blog-link which has several interesting posts)
The IBM Extensions for Memory Analyzer (IEMA) v1.1 are now available on
Garbage Analysis The inclusion of two new queries: Find Garbage Fragments and Find Allocation Sites, makes it possible to identify fragments (chains) of objects that are eligable for collection, along with similar live data in the Java heap where the garbage fragments may previously have been allocated. Improved WebSphere Application Class Loader Leak Analysis Leaking application class loaders are now marked with " LEAKING LOADER" in all views, and a new more accurate " Path to Leaking Application Class Loaders" query has been provided to identify why they are being kepy alive Mapping of WebSphere thread IDs to Java thread IDs The Java Basics -> Thread Overview query has been updated to include a WAS Thread ID column allowing you to map the thread IDs used in the WebSphere logs to the threads IDs used in other diagnostic files. Improved WebSphere Hung Thread detection Threads that have been marked as hung by the WebSphere thread pool manager are now marked as [Hung] in all views, and a new section has been added to the " Thread Pool Analysis" query.