Hi John
It looks like a jar dependency error to me.
Basically, are there other project files your WAR relies on? These need to be included in both the build path of you WAR project, and possible exported into the WAR - you do this by
-->right-clicking on the WAR project
-->select 'Properties'
-->select '
Java Build Path'
-->select the appropriate projects / libraries
-->go into 'Order & Export'
-->if you need to export any of the other projects / library classes, tick the box beside each one.
-->click 'Ok'
-->rebuild, redeploy, re-test and cry again because I've broken something else!
hth
As