NB 7.2 made a late-breaking change to workaround http://monaco.us.oracle.com/detail.jsf?cr=7183866 which slightly modified the file format of jfx-impl.xml. As a result, anyone opening the shipping FX 2.2 samples from NB 7.2 will see the message that the file format has been updated. This isn't a critical issue, but perhaps should be fixed for 2.2.