| # Apache Tomcat 6.0 |

# Apache Tomcat 6.0 ## Additional Components |
Introduction
A number of additional third party components may be used with Apache Tomcat, but are not provided directly in the downlad bundle for a variety of reasons. These may be built by users should they need it.
Building
The additional components are built using the `extras.xml` Ant script which is present in the source bundle of Tomcat. The build process is the following: Follow the build instructions to build a Tomcat binary from the source bundle (note: it will be used by the build process of the additional components, but does not need to be actually used later on) Execute the command `ant -f extras.xml` to run the build script The additional components JARs will be placed in the `output/extras` folder Refer to the documentation below about the usage of these JARs
Components list
> Full commons-logging implementation
> Tomcat uses a package renamed commons-logging API implementation which is hardcoded to use the java.util.logging API. The commons-logging additional component builds a full fledged package renames commons-logging implementation which can be used to replace the implementation provided with Tomcat. See the logging page for usage instructions.
> Web Services support (JSR 109)
> Tomcat provides factories for JSR 109 which may be used to resolve web services references. Place the generated catalina-ws.jar as well as jaxrpc.jar and wsdl4j.jar (or another implementation of JSR 109) in the Tomcat lib folder.
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