Is there a way to block some parts of the Java Standard Library?

Asked Aug 15 '13 at 11:32

Active Sep 03 '13 at 18:38

Viewed 100 times

I am creating an application that allows people to load in their Java applications. Is there a way to disable parts of the Java Standard Library like JFrames and Files? Preferably when a user tries to access these parts it should throw an exception.

Preferably I would like to block the user to use any classes that do not do any I/O (like files and sockets) or do anything like rendering (JFrames).

The idea is the user can write Java plugins for an application, and thus doesn't need any of these options and should be prohibited from using them.

edited Sep 03 '13 at 18:38

asked Aug 15 '13 at 11:32

Jeroen

15,257
12
59
102

Not that I know of. I can't think of a good reason to do so. They can't "use" anything that you don't put in the application. – duffymo Aug 15 '13 at 11:36
3

You could use a [SecurityManager](http://docs.oracle.com/javase/tutorial/essential/environment/security.html) and use `System.setSecurityManager` at startup? – Sam Marsh Aug 15 '13 at 11:40
1

Maybe you can do that with a SecurityManager: http://docs.oracle.com/javase/tutorial/essential/environment/security.html – Gyro Gearless Aug 15 '13 at 11:41
Couldn't a classloader filter what it loads? – CPerkins Aug 15 '13 at 12:02
1

This is called "sandboxing" (so you can google that) – MSalters Aug 15 '13 at 13:39

Is there a way to block some parts of the Java Standard Library?

0 Answers0