A note on JRockit versioning

The way JRockit is versioned can be a little confusing. There are at least three version numbers of interest for each JRockit release:

  1. The JRockit JVM version.
  2. The JDK version.
  3. The Mission Control version.

One way to obtain the version number of the JVM is to run java –version from the command prompt. This would typically result in something like the following lines being printed to the console: 

java version "1.6.0_14"
  Java(TM) SE Runtime Environment (build 1.6.0_14-b08)
  Oracle JRockit(R) (build R28.0.0-582-123273-1.6.0_14-20091029-2121-windows-ia32, compiled mode)

The first version number is the JDK version being bundled with the JVM. This number is in sync with the standard JDK versions, for the JDK shipped with HotSpot. ...

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