Loading JTSSynchronizationWrapper gets NoClassDefFoundError: org/jboss/as/naming/context/NamespaceContextSelector ----------------------------------------------------------------------------------------------------------------- Key: WFLY-12805 URL: https://issues.jboss.org/browse/WFLY-12805 Project: WildFly Issue Type: Bug Components: CDI / Weld, Transactions Affects Versions: 18.0.1.Final Environment: * Red Hat JBoss Enterprise Application Platform (JBoss EAP) 7.1+ * Contexts and Dependency Injection (CDI) * CDI Transaction management Reporter: Chao Wang Assignee: Chao Wang Priority: Major Labels: cdi, dependency, modules, weld Fix For: 19.0.0.Beta1 Since JBoss EAP 7.1.0 GA, The class JTSSynchronizationWrapper has imported NamespaceContextSelector, but the module.xml in "org.jboss.as.weld.transactions" does not import "org.jboss.as.naming". Adding this dependency makes the issue go away. {code} Caused by: java.lang.NoClassDefFoundError: org/jboss/as/naming/context/NamespaceContextSelector at org.jboss.as.weld.services.bootstrap.JTSSynchronizationWrapper.<init>(JTSSynchronizationWrapper.java:44) at org.jboss.as.weld.services.bootstrap.WeldTransactionServices.registerSynchronization(WeldTransactionServices.java:95) at org.jboss.weld.module.jta.TransactionalObserverNotifier.notifyTransactionObservers(TransactionalObserverNotifier.java:86) at org.jboss.weld.event.ObserverNotifier.notify(ObserverNotifier.java:274) at org.jboss.weld.event.EventImpl.fire(EventImpl.java:96) at com.jboss.examples.filter.ExampleFilter.filter(ExampleFilter.java:12) {code}