Hi, I am using jasper reports with web services provided. So I called a url web services that accept multiple parameters such as report name, type of output format, and the list of parameters necessary for the execution of the said report. I am currently looking for a way to recover the list of parameters expected by my report, in order to avoid build errors that I ever have from time to time. Indeed, it would allow me to control my session in my application server, I have all the necessary elements. Thank you in advance for your answers.