JDK versions

The server plug-in installs version 1.4.2 and version 1.5.0 of the Java Development Kit (JDK) from Sun Microsystems. You can also configure the installation to use an existing version, as long as it is the required patch level.

**Table 1-1: JDK versions and required patch levels**
JDK version	Patch level
1.4.2	13
1.5.0	09

To verify the version and patch level of an existing installation, change to the bin directory of the JDK installation and run:

java -version