Spooler is a tool that monitors jobs of any kind of application through plain text files simply containing the parameters needed to submit a report to a print queue. As a plus it can also convert a report into pdf format and send it attached to an email.
JReportingGrid is a 100% pure java GUI tool to generate a report. JReportingGrid has a GUI like a spread sheet. You can format cells, draw lines, merge cells, print previewing, change the height and width of cells, generate a pdf document and much more.