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ARCHIVED: Pooled JVM in CICS Transaction Server V3 by Derek Wen, Qian Zhang, Guo Qiang Li, Yun Peng Ge, John Taylor, Tom Grieve, Scott Clee, George Burgess, Chris Rayns

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Resettable JVM
The resettable JVM was introduced in CICS TS Version 2.1. With it you could reset the state of a JVM between tasks to help ensure that subsequent users of the same JVM are fully isolated from states left behind by previous users of the JVM.
The time taken to reset a JVM depended on no cross-heap references between the middleware and application heaps. If references exist, the JVM scan to determine if the references are in live objects can be slow. If the attempt to reset the JVM failed, CICS discarded the JVM and created a new one. ...

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