RFE: Add compressed oops to VM info string

Krystal Mok rednaxelafx at gmail.com
Wed Nov 9 23:54:52 PST 2011

Hi all,

I'd like to propose to add "compressed oops" to the VM info string, so that
people using "java -version" can get a better understanding of the
ergonomics of the VM.
I've posted a patch [1], against hsx20's master. The files modified are
still pretty much the same on hotspot-main's master.

With the patch applied, "java -version" may show:
OpenJDK 64-Bit Server VM (build 20.0-b11-internal, mixed mode, compressed
and what used to work still works:
OpenJDK Client VM (build 20.0-b11-internal, mixed mode, sharing)

P.S. Alibaba (Taobao)'s OCA is submitted already, still waiting for
approval from Oracle.

Kris Mok
Software Engineer, Taobao (http://www.taobao.com)

[1]: https://gist.github.com/1354299
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