mime types to be defined in web.xml for pdf, css, images,javascript in the mime-mapping tag

If you are using the PDF or JavaScript or images with differnt extensions png, jpeg, gif then that should be defined

in the mime-mapping tag in the web.xml . Example is given below.
<mime-mapping>
<extension>pdf</extension>
<mime-type>application/pdf</mime-type>
</mime-mapping>
<mime-mapping>
<extension>javascript</extension>
<mime-type>application/x-javascript</mime-type>
</mime-mapping>
<mime-mapping>
<extension>css</extension>
<mime-type>text/css</mime-type>
</mime-mapping>
<mime-mapping>
<extension>swf</extension>
<mime-type>application/x-shockwave-flash</mime-type>
</mime-mapping>
<mime-mapping>
<extension>txt</extension>
<mime-type>text/plain</mime-type>
</mime-mapping>
<mime-mapping>
<extension>png</extension>
<mime-type>image/png</mime-type>
</mime-mapping>