This week's book giveaway is in the Testing forum. We're giving away four copies of The Way of the Web Tester: A Beginner's Guide to Automating Tests and have Jonathan Rasmusson on-line! See this thread for details.
Servlet Exception in converter example in J2EE Tutorial
posted 15 years ago
Hi, I need help to solve this problem. When I followed the instruction to run converter example in J2EE Tutorial, everything were fine until I enter 100 in the browser. Then I got the following message: A Servlet Exception Has Occurred Execption Report: javax.servlet.ServletException at org.apache.jasper.runtime.PageContextImp1.... Root Cause: java.lang.NullPointerException: at _0002findex_..... Would you please show me what is the problem if you know what is wrong? Your help is sincerely appreciated. Kenneth