Eclipselink JPARS exception “ECLIPSELINK_OXM_XML_KEY not found”
问题 I am using Glassfish 3.1.2 and Eclipselink 2.4.1 (at least I thought so!) and derby (from Glassfish as JTA resource). When accessing the Entities in my app via "XXXX:8080/myapp/persistence/, I get the following error. Please note: the "Eclipselink Persistence Service" is reported with version 2.3.2, which looks strange to me, too. I would expect to see my configured version 2.4.1 (see below). Any ideas? INFO: JTS5014: Recoverable JTS instance, serverId = [100] INFO: [EL Info]: 2013-04-05 17