Agent Guide › Installing and Upgrading the Agent › Before You Begin › Define the JAVA_HOME Environment Variable

Define the JAVA_HOME Environment Variable

The SiteMinder Agent install and uninstall programs require that a JAVA_HOME variable is defined in the environment that specifies the installed location of the WebSphere Java Runtime Environment (JRE).

To set the JAVA_HOME variable on Windows

1. Open a command window.
2. Enter the following command:

   set JAVA_HOME=JRE
   

   JRE

   Defines the location of the WebSphere Java Runtime Environment install directory (the default is C:\Program Files\IBM/WebSphere\AppServer\java).

To set the JAVA_HOME variable on UNIX

1. Open a command shell.
2. Run the following command:

   set JAVA_HOME=JRE; export JAVA_HOME
   

   JRE

   Defines the location of the WebSphere Java Runtime Environment install directory (the default is /opt/WebSphere/AppServer/java).