What behavior differences should I expect in an Application versus an Applet with 'All Permissions'?

[ngalarneau at ABINITIO.COM]

Hello,

I have a JavaFX Application that runs fine.
When I package it as an Applet (three cheers for javafxpackager!), and 
give that Applet "All Permissions", the Applet throws exceptions and fails 
to start.

One difference is in fields initialized by FXMLLoader. When those fields 
have default accessibility they are initialized in the Application but not 
in the Applet. When those fields are changed to public accessibility, then 
they are initialized in both the Application and the Applet as well.

Given the extra build & debug complexity with Applets, I did an 
experiment. I tried running the Application with a SecurityManager that 
approves (doesn't throw an exception for) all checkPermission() calls.

Bingo! Similar failures.

Now I have a number of questions:

1) How does JavaFX code behave differently when run as an Application with 
no Security Manager and as an Applet given 'All Permissions'?

2) How does JavaFX code behave differently when run as an Application with 
no Security Manager and as an Application with a Security Manager whose 
checkPermission() methods never throw an exception?

3)  How does JavaFX code behave differently when run as an Application 
with a Security Manager whose checkPermission() methods never throw an 
exception and as an Applet given 'All Permissions'?

4) Why does an Application behave differently when run as an Application 
with no Security Manager and as an Application with a Security Manager 
whose checkPermission() methods never throw an exception? I find that 
difference surprising (but not shocking).

5) Is any of this documented anywhere? I would rather not have to map the 
minefield myself.

6) Are differences like this documented for the non-JavaFX parts of Java?


Thank you for taking the time to read this long email,

Neil


 
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