Several quickstarts fails with unsupported content validation error ------------------------------------------------------------------- Key: JBIDE-20535 URL: https://issues.jboss.org/browse/JBIDE-20535 Project: Tools (JBoss Tools) Issue Type: Sub-task Components: hibernate, upstream Affects Versions: 4.3.0.CR1 Reporter: Rob Stryker Assignee: Koen Aers Fix For: 4.3.1.CR1, 4.4.0.Alpha1 Importing the above quickstart fails validation with the following (cryptic) error: The persistence.xml file does not have supported content for this JPA platform. Stack-overflow on a similar topic: http://stackoverflow.com/questions/3701901/eclipse-does-not-recognize-con... Link to bugzilla from 2008 that claims issue is fixed: https://bugs.eclipse.org/bugs/show_bug.cgi?id=251323 I have absolutely no idea how to fix this issue.