* servlet container, for example, to get the MIME type of a file, dispatch
* requests, or write to...type of the specified file, or null if
* the MIME type is not known....The MIME type is determined
* by the configuration of the servlet container, and may be specified...* servlet container, for example, to get the MIME type of a file,
* dispatch requests, or write to...type of the specified file, or null if
* the MIME type is not known.