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The script /afs/slac.stanford.edu/package/java/build/release is a bourne shell script that assembles the names of the volumes it finds in the java directory that will be updated and then makes calls to the vos_release command which in turn calls vos commands to update a release. Note that the release script exists only in the visible directory not the shadow directory (no dot in the afs path) The same script is in the shadow directory but it refers to the visible path when building the package list.
Once you deploy the new version you must restart the servers so they can pick up the changes. The best way is to restart the test server and see if everything is ok there. If nothing breaks then restart the other servers.
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