Clean exits from Forms when session idle - 12c / 14c

With respect to Doc ID 2114912.1 and the handling if Forms sessions that have timed out, we're trying to clean up the user experience.

We are moving from 11g launching via Java Applet, to 12.2.1.4 using FSAL.

The pertinent line here with respect to new 12c functionality is

Note: Current methods of handling a client idle condition (both the v12 built-in functionality here and the timeout.jar bean demo) have a limitation. If ANY model/blocking window is displayed, idle code will not fire until after the blocking condition is released. If different behavior is desired, a custom Java Bean would need to be developed.