JavaFX is only supported on Mac OS X 10.6 or later. We don't currently check the version of Mac OS X, and attempt to run JavaFX anyway. This results in the following cryptic and misleading error message:

java.lang.UnsatisfiedLinkError: Can't load library: /Users/bcbeck/fx/builds/javafx-sdk2.0-beta/rt/lib/../bin/libmat.dylib

when what really happened is that .../bin/libmat.jnilib couldn't be loaded, due to 10.6 dependencies, so it tries libmat.dylib which doesn't exist.

This is compounded by RT-13739 which will cause a Headless exception if running from the JavaFX standalone launcher when trying to report this error message.

We need to check the version of Mac OS X in QuantumToolkit initialization and throw an exception with a meaningful error message.