Chapter 1: Before You Install EAServer

JDK versions

EAServer requires version 1.3.1 of the Java Development Kit (JDK) from Sun Microsystems. You can optionally run servers with JDK 1.4.1 instead. By default, JDK 1.3.1 and the optional JDK versions that you select are installed with EAServer. You can also configure the installation to use an existing version, as long as it is of the required patch level as listed in Table 1-1.

**Table 1-1: JDK versions and required patch levels**
JDK version	Patch level	Notes
1.3.1	cxia32131-20020622	This version is required to run EAServer Manager, jagtool, and other tools. It can also be used to run servers on Linux versions other than Red Hat Advanced Server.
1.4.1	01	This version is required to run the Web services toolkit. With JDK 1.4, the client and server virtual machines (VMs) are supported; the classic VM is not.

WARNING! On Red Hat Advanced Server Linux editions, you must run the application server with JDK 1.4.1. Other JDK versions are not supported.

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

java -version

To configure the installation to use an existing JDK installation, choose the Custom installation type when running the installer. After you select the desired JDK versions, the installer prompts you to specify whether to use an existing JDK and for the location of the JDK.

View this book as PDF