All Web Proxy Server instances corresponding to the same installed Web Proxy Server image are upgraded at the same time. All such instances should be shut down when patches are being applied to the installed image.
Log in as administrator.
Stop all running instances of Web Proxy Server and the Administration Server.
WebProxyServer-base\proxy-instancename\stopsvr
WebProxyServer-base\proxy-admserv\stopsvr
If you have not already done so, upgrade the NSS and NSPR shared components to Release 5 and any other shared components you wish to upgrade.
Install Release 5 Web Proxy Server upgrade patches.
Patches can be downloaded from http://sunsolve.sun.com/pub-cgi/show.pl?target=patchpage. The patch ID for Web Proxy Server core is 123533-01.
Patch revision numbers are the minimum required for upgrade to Java ES Release 5. If newer revisions become available, use the newer patches instead of the old patches.
Confirm that the patch upgrades were successful.
You can confirm patch upgrade by checking the patch installation log.
Restart the Web Proxy Server instance.
WebProxyServer-base\proxy-instancename\startsvr