The Oracle (formerly Sun) Java Platform, Standard Edition (Java SE or JSE) allows you to develop and deploy Java applications on desktops and servers as well embedded and real-time environments. The Java Development Kit (JDK) contains the essential compiler, tools, runtime libraries, and APIs for developers writing, deploying, and running applets and applications in the Java programming language. The Java Runtime Environment (JRE) contains the runtime libraries and tools for running applets and applications.

Changes

20 security fixes were made, several of them for critical issues. Olson time zone data was updated to version 2011g. Cisco AnyConnect Mobility Client and Microsoft UAG Client were added to the Blacklisted Jars list. Minor bugs were fixed.

URL: Java SE Overview - at a Glance