This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
Am I correct that you can access the servlet and get the expected result after Tomcat has been restarted, and you only get the 503 if you change the class files while it is running? Do the log files show anything related to the servlet? Bill