December 1999
Intermediate to advanced
816 pages
20h 27m
English
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The Policy-Based Security Model
Prior to the Java 2 SDK, the primary means of providing security in Java was through the SecurityManager class. Anyone who has run an applet in a browser has seen the SecurityManager class at work. By default, the SecurityManager class allows no interaction with client system resources or connections with other systems except the server that the applet was downloaded from.
Its methods consist of checkxxx methods where read, write, loadLibrary, and so on replace the xxx. If the method returns false, which is the default behavior, the operation is not allowed. In general, browsers take the default form of the SecurityManager class or modify the behavior just a little bit. That forces unsigned applets to run inside ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.