Hello I'm trying examples XMLDB to access BaseX and none of the 3 (XMLDBCreate, XMLDBInsert, XMLDBQuery) work ok. All have the same error: Exception in thread "main" java.lang.AbstractMethodError: org.basex.api.xmldb.BXDatabase.getNames()[Ljava/lang/String; at org.xmldb.api.DatabaseManager.registerDatabase(Unknown Source) at proves.XMLDBCreate.main(XMLDBCreate.java:31) I tried it in 7.0.2 and 7.1.1 versions. Is there any solution? I found the same error reported on March 2011 for BaseX users and the response of Michael Seiferlein https://mailman.uni-konstanz.de/pipermail/basex-talk/2011-March/001395.html I am a Catalan teacher of computer science and I am writing a book on native XML DB access, among other products, and I intend to submit the BaseX local API and also XMLDB and XQJ. For the moment, it seems XMLDB is not possible? Kind Regards, Isidre Guixà