Want to run BEA System's WebLogic Server on OS X? The first step is to download the 'generic' version of WebLogic Server (WLS) 9.0. I used the HP-UX 11 version for Itanium processors. The downloaded file is named server900_generic.jar. To install, simply open up Terminal.app and type:
$ java -Dos.name=unix -jar server900_generic.jar
When you press return, the graphical installer will run and install WLS 9.0. Native libraries that provide a performance boost will not be used on Mac OS X, but this will allow the server to be installed and start up. I've posted a (slightly more detailed) write-up on my own blog.
Mac OS X Hints
http://hints.macworld.com/article.php?story=20051216112747211