leTypeMap looks in various places in the user's
 system for MIME types file entries. When requests are made
 to search for MIME types in the MimetypesFileTypeMap, it searches  
 MIME types files in the following order:
 <ol>
 <li> Programmatically added entries to the MimetypesFileTypeMap instance.
 <li> The file <code>.mime.types</code> in the user's home directory.
 <li> The file <code>mime.types</code> in the Java runtime.
 <li> The file or resources named <code>META-INF/mime.types</code>.
 <li> The file