Firewall - Java Card project with two packages.

My Java Card project has got two Java Card packages. One of them contains only the Java Card applet. The other package contains all other classes. We did the splitting because our application is large and if all the code is left inside the one package if debug mode was checked, the size of the cap file was more than 64 bytes and the CAP file with that size cannot be installed inside the simulator. That situation made the programming difficult. Therefore the splitting took place. What is my question? If we have two packages, is there a firewall between them or the packages are in the same group context.

A library package has different restrictions to an applet package. As for the firewall, the data created in your library package is owned by the applet instance that created it. That means any data or objects created by calling your library from your applet will be in the same context as your applet. Any other applet accessing this library will not be able to access instances from the original context. This is only a problem with static fields and methods etc that are shared between both applets.
Cheers,
Shane

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Copyright 2002 Sun Microsystems, Inc. All rights reserved.
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Firewall - Java Card project with two packages.

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