Hello Everyone, I got a problem : I created a H2 Database and a data adapter to load it's data in a report (everything is normal). When I test the connection of the data adapter Jaspersoft Studio returns "successful". But when I try to use the data adapter in a report, in the "Dataset and Query dialog" window, the data preview doesn't load the tables in the database. It loads the shema but not the tables. I got the correct user name, password, URL and driver class. I use the latest version of jaspersoft studio. I don't know where is the problem, if someone could help me it would be nice! If you need any precisions feel free to ask. Thanks in advance!