My question was moved to Software Recommendations.
As you can see, it clearly needs help from programmers as it asks for libraries or tutorials on the subject. And because of this, it was commented there which was:
While asking for libraries is fully OK here at SR, we don't provide tutorials or the like. The scope of this site is to recommend specific software to your named requirements. To prevent your question from being "put down", I strongly recommend you edit it to meet this site's scope.
So either of the two moderators is right. I'm voting for the one at SoftRec. Why? You might ask, well I was asking for libraries, not built software for my purpose.
The software, "Jaspersoft" was just an example of what I want to output. I didn't ask "I needed a report generator like Jasper", what I asked are libraries or at least code examples.
I do hope that this would not be closed without my curiosity being satisfied. :)