FreeSoftwareBooks.com
the name says it all

Home Page  |   Languages   | Java/J2EE    |  Microsoft    |   Unix/Linux    |   Computer Science    |   Databases    |  Web   |   Networking  

Java Security 
Java Security (by Scott Oaks) [Mirror] [Mirror] [Mirror] [Mirror] [Mirror] [Mirror]
Securing Java (G. McGraw, E.W. Felten) Java's Security Architecture (B. Venners)
Using JAAS for Authorization and Authentication JAAS Developer's Guide [Reference]
Other Security Books Java 2 Network Security (Marco Pistoia, et al)