# How to determine your version of Tomcat and Java

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## Purpose

The commands on this page will allow you to determine the version of Tomcat that your instance is using. It will also allow you to check the version of Java is being used to create a JVM.

Solution

### To Obtain Server Info

Run the following commands from your <application-install> or <tomcat-install> directory:

If you do not have your Java Home directory included in your PATH environment variable, you will need to include the path to your <java-home>/bin directory in front of the java command.

Linux

java -cp lib/catalina.jar org.apache.catalina.util.ServerInfo

Windows

java.exe -cp lib\catalina.jar org.apache.catalina.util.ServerInfo

The output should be similar to this:

Server version: SpringSource tc Runtime/2.0.4.RELEASE
Server built: August 3 2010 0710
Server number: 6.0.28.29
OS Name: Linux
OS Version: 2.6.18-194.11.1.el5
Architecture: i386
JVM Version: 1.6.0_21-b06
JVM Vendor: Sun Microsystems Inc.