Wrong TCCL during ValidatorFactory retrieval -------------------------------------------- Key: WFLY-1730 URL: https://issues.jboss.org/browse/WFLY-1730 Project: WildFly Issue Type: Bug Affects Versions: 8.0.0.Alpha3 Reporter: Jozef Hartinger Assignee: Eduardo Martins Fix For: 8.0.0.Beta1 Here https://github.com/wildfly/wildfly/blob/master/ee/src/main/java/org/jboss... the TCCL is set to the classloader of the ValidatorFactory. If the ValidatorFactory is LazyValidatorFactory which delegates to a client proxy obtained from Weld, this call fails with {noformat} Caused by: java.lang.IllegalStateException: JBAS016071: Singleton not set for ModuleClassLoader for Module "org.jboss.as.ee:main" from local module loader @76724357 (finder: local module finder @47a34181 (r$ at org.jboss.as.weld.services.ModuleGroupSingletonProvider$TCCLSingleton.get(ModuleGroupSingletonProvider.java:75) [wildfly-weld-8.0.0.Alpha4-SNAPSHOT.jar:8.0.0.Alpha4-SNAPSHOT] at org.jboss.weld.Container.instance(Container.java:54) [weld-core-impl-2.0.2.Final.jar:2013-06-27 10:15] at org.jboss.weld.bean.proxy.ContextBeanInstance.getInstance(ContextBeanInstance.java:70) [weld-core-impl-2.0.2.Final.jar:2013-06-27 10:15] at org.jboss.weld.bean.proxy.ProxyMethodHandler.invoke(ProxyMethodHandler.java:100) [weld-core-impl-2.0.2.Final.jar:2013-06-27 10:15] at org.jboss.weld.proxies.ValidatorFactory$618047133$Proxy$_$$_WeldClientProxy.getValidator(Unknown Source) [weld-core-impl-2.0.2.Final.jar:] at org.jboss.as.ee.beanvalidation.LazyValidatorFactory.getValidator(LazyValidatorFactory.java:83) at org.jboss.as.ee.beanvalidation.ValidatorJndiInjectable.getInstanceSafely(ValidatorJndiInjectable.java:53) at org.jboss.as.ee.beanvalidation.ValidatorJndiInjectable.getInstanceClassName(ValidatorJndiInjectable.java:61) at org.jboss.as.naming.ServiceBasedNamingStore.list(ServiceBasedNamingStore.java:176) at org.jboss.as.naming.NamingContext.list(NamingContext.java:323) at org.jboss.as.naming.InitialContext.list(InitialContext.java:140) at org.jboss.as.naming.NamingContext.list(NamingContext.java:339) at javax.naming.InitialContext.list(InitialContext.java:455) [rt.jar:1.7.0_25] at org.jboss.as.test.integration.web.injection.SimpleServlet.testAS7_5347(SimpleServlet.java:59) [classes:] ... 29 more {noformat} My assumption is that setting the TCCL is not necessary here at all though I may be wrong.