Get version information directly from the Tomcat code by executing this command in the Tomcat install directory:
Linux: java -cp lib/catalina.jar org.apache.catalina.util.ServerInfo
Windows: JAVA_HOME=C:\Program Files\Java\jre1.8.0_111\bin
java.exe -cp "C:\Program Files\VMware\Infrastructure\Inventory Service\lib\catalina.jar" org.apache.catalina.util.ServerInfo
Note: The version of Java used in this command may depend on how you have installed Java on your system, and is reflected in the output. To indicate a specific version of Java, specify the full path to the Java executable in the command.
The output varies depending on the product and environment.
Examples:
The immediately relevant field in the output is Server number, which indicates the exact version of Tomcat, even in a derived product like vFabric tc Server. All of the output can be helpful information for troubleshooting.