Setting Up the Java Environment

Tomcat requires a Java Runtime Environment (JRE) from J2SE version 6 or later.

To install and set up a JRE on the target machine:

  1. Download the Java 2 Standard Edition JRE 6, from http://www.oracle.com/technetwork/java/javase/downloads/index.html.
  2. Install the JRE on the target machine according to the instructions in the download package.
  3. Set an environment variable named jre_home to the directory into which you installed the JRE. The default installation locations are:

    • (Windows users) C:\Program Files\Java\<JRE_version>, for example
    • (Linux users) <JRE_version> in the directory where the JRE self-extracting binary was run.
  1. Append jre_home/bin to the path environment variable.

    Note: You can use the full Java Development Kit (JDK) rather than just the JRE. In this case, set the java_home environment variable (not jre_home) to the directory into which you installed the JDK, and append java_home/bin to the path environment variable.