Version of JSP Wiki to use??

Hello
 
We have an Oracle portal installation with Oracle Application Server.  We are currently stuck on a version that only works with JDK 1.4.  I am having difficulty finding which latest verison of JSP Wiki will work with this version of JDK.  
 
Could someone point me to the best version of JSPWiki to try?
 
Thanks,
Debra

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