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.
This problem turns up a lot in the Servlet, JDBC and Apache/Tomcat forums and I recommend a search if you want more information. A short answer can be found here Drop us a line if you have further problems Dave