To use the WebSphere MQ bridge the WebSphere MQ Classes for Java are required, version 5.1 or later. These are packaged with WebSphere MQ 5.3 and above. If using an earlier version of WebSphere MQ then they are available for free download from the Web as supportpac MA88. The Web address for the download is: http://www.ibm.com/software/mqseries/txppacs/ma88.html.
For an example of how to setup the classpath to include WebSphere MQ jar files, see batch files:
Occasionally, the jar files change between versions of the WebSphere MQ, if problems are encountered as a result of this, consult the documentation for WebSphere MQ classes in order to determine the correct jar files to use.