[xwiki-devs] [help] How to use Java code together with XWiki

Hi Devs, I am a Master Student of Computer Science and of Business Information Systems. I am developing my master thesis project on a case study coming from Learnpad, unfortunately I have some problems in understanding the huge amount of documentation provided by the XWiki website for developers, anyway the idea behind my project is the following: *Starting from a XWiki page, clicking on an hypothetical button, I want to be able to start a Java application that will aplly changes to the XWiki space, that are: * - *Add and remove single or multiple pages to the space;* - *Set the content of the new pages;* - *Modify content of existing pages;* I am wondering because it is not clear, for me, if I need to create a new *extension *or a new *component *or a *macro*(and the differences between them), how to properly implement a java application for Xwiki or how to start it from the Xwiki environment, if it is possible to modify XWiki spaces at runtime, or how to associate java object to wiki pages....and stuff like that... I've already read the documentation, checked the existing extension, cheched the Github repository, but it is dispersive, sometimes too technical (with some knowledge taken for granted) and sometimes too general. In the end I am stucked because I don't know how to approach my problem in this environment. Do you have any suggestion to help me? I need to be put on the right truck Kind Regards, Giordano Ninonà.