Double clicking on JNLP not working on MacOS X

This is 2nd or 3rd time we have faced this problem - double-clicking on JNLP file does not start on a MacOS X.

Well, this time I think we got the culprit - /Applications/Utilities/Java folder had an "Java SE 6" file in it - a left-over file from installation of Java 6 SDK Developer Preview. Removing that file solved the problem.

So, people, if you have a problem w/ running JNLP - that may be the solution.