Issue found with latest sample on hudson build, using below link. Found on Mac os 10.7.3, firefox with 7u6 b19 installed.
http://jfx.us.oracle.com/hudson/view/2.2/job/2.2/label=macosx-universal-14/lastSuccessfulBuild/artifact/artifacts/deployed/SignedApp/SignedApp.html
The input text in login box show duplicated input - If I type in a 'a' it would show 'aa'.