I downloaded simpleJSPWiki.zip from the link on the page http://doc.jspwiki.org/2.4/wiki/Simple%20JSPWiki
The file is corrupt. Extract All in Windows gives some random mysterious error number. 7Zip opens the archive ok but if you drill down to simpleJSPWiki .zip\wiki\tomcat\lib\catalina.jar, and try to extract just that file, you get an error 0 CRC failed in '\wiki\tomcat\lib\catalina.jar'. File is broken /Jim Goodwin