New: System dump produced on first OOM in WAS 220.127.116.11
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Starting in WAS 18.104.22.168 running on IBM JVMs, the default artifacts produced on an OutOfMemoryError have changed. In addition to the old defaults (first four OOMs create a PHD, javacore, and snapdump), a system dump will be produced on the first OOM: http
Some customers have become used to system dumps meaning crashes, so don't be worried. System dumps are a richer and alternative artifact to understand OOMs using the Memory Analyzer Tool and the IBM Extensions for Memory Analyzer.
For customers running *nix based operating systems, this is a good time to check your ulimits and make sure they're setup correctly, so that any system dumps produced are not truncated: AIX, Linux, i/OS, z/OS.
Update: TechNote describing this: http