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.
I am using poi api for generating excel sheets.iam creating workbook and sheets in my code.for writing the output iam using outputstream(). response.getoutputstream() build and deployment successful. but when i ran the servlet on browser iam getting the following error. cannot call getoutputstream() after getwriter()