The issue was found on Mac with latest build fx 93 with FF but was also reproducible on windows with FF.
Open URL:
http://sqeweb.us.oracle.com/net/sqenfs-1/export1/comp/jsn/users/larry/fxcases/liveconnectfx/html/testJStoJavafx_Access_nonFinal_int_Field_Indirectly_via_Embeded_Object.html
If you see below message in trace file:
Failed because: JS Exception: TypeError: oldValue is undefined
The issue is reproduced.
The test tries to access field of a embeded object of applet from JS but get error thrown during the course. Source code can be found at http://sqeweb.us.oracle.com/net/sqenfs-1/export1/comp/jsn/users/larry/fxcases/liveconnectfx/src.
Non-fx versoin of similar scenario testJS2JavaPassJSObjectToIndirectJavaObject can pass, which can be found in latest nightly report:
http://sqeweb.us.oracle.com/net/sqenfs-1/export1/comp/jsn/users/stephen/deployment_stuff/do.NOT.remove.me/mac_nightlies/357/plugin.firefox/reports/html/29_JS2JavaTest.html