Allow me to answer my own question! Always the way, as soon as you give up hope, ask a question on a forum, you stumble on the answer.
I had neglected to copy over the necessary jar files. *Your app must include appengine-api-*.jar (where * represents a version number of the API and SDK), a JAR included with the SDK, in the directory war/WEB-INF/lib/. App Engine checks for classes from this JAR to determine which version of the API your app is using. If your application uses the JDO or JPA interfaces to the App Engine datastore, the app must include the JDO/JPA implementation in war/WEB-INF/lib* -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to this group, send email to google-appengine-java@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
