You are using Google AppEngine so you must conform to their sandbox restrictions.
Read the Thread passage in the docs: https://developers.google.com/appengine/docs/java/runtime?hl=en#The_Sandbox -- J. -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To view this discussion on the web visit https://groups.google.com/d/msg/google-web-toolkit/-/FiBbAI1zE38J. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
