Just a heads-up about the documentation. The instructions on http://jogamp.org/jocl/doc/HowToBuild.html on how to build are not accurate. There is no build.xml in the root folder (it is in the make directory) and it has no 'test' target.
Anyway it was a long shot since probably couldn't build native code anyway (lacking correct gcc et c)
Sorry, this is my fault -- I forgot to update the docs after updating the build process to match JOGL and JOAL. To build, you set up your environment just like for JOGL (gcc, Java, ant, etc.), then cd to jocl/make and do "ant clean", then "ant". To run the tests, type "ant junit.run".