Thanks Robert! You comments really helped me find my solution this problem. It got me thinking outside the box to find which row(s) were causing this issues.
Check out my solution here: http://stackoverflow.com/questions/6316096/java-google-app-engine-bulk-loader-upload-error-overflowerror-date-value-out-of -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To view this discussion on the web visit https://groups.google.com/d/msg/google-appengine/-/6tJ6rYkC3LgJ. To post to this group, send email to google-appengine@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.