Helloworld example throwing "java.lang.LinkageError: loader constraint violation" when deployed into JBossAS 6 -------------------------------------------------------------------------------------------------------------- Key: SEAMVALIDATE-4 URL: https://issues.jboss.org/browse/SEAMVALIDATE-4 Project: Seam Validation Issue Type: Bug Affects Versions: 3.0.0.CR1 Reporter: Martin Gencur Assignee: Martin Gencur Fix For: 3.0.0.Final The problem is including of slf4j libraries into the resulting war. I used the "jee" maven profile. The solution here is to mark the slf4j dependency as "provided" in the jee profile: <dependencies> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-api</artifactId> <scope>provided</scope> </dependency> </dependencies> The Error Stack Trace: 13:21:15,211 ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[localhost].[/validation-helloworld].[Seam Validation Example Servlet]] Servlet.service() for servlet Seam Validation Example Servlet threw exception: java.lang.LinkageError: loader constraint violation: when resolving method "org.slf4j.impl.StaticLoggerBinder.getLoggerFactory()Lorg/slf4j/ILoggerFactory;" the class loader (instance of org/jboss/classloader/spi/base/BaseClassLoader) of the current class, org/slf4j/LoggerFactory, and the class loader (instance of org/jboss/classloader/spi/base/BaseClassLoader) for resolved class, org/slf4j/impl/StaticLoggerBinder, have different Class objects for the type org/slf4j/ILoggerFactory used in the signature at org.slf4j.LoggerFactory.getILoggerFactory(LoggerFactory.java:280) [:1.5.6] at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:248) [:1.5.6] at org.hibernate.validator.util.LoggerFactory.make(LoggerFactory.java:29) [:4.1.0.Final] at org.hibernate.validator.util.Version.<clinit>(Version.java:24) [:4.1.0.Final] at org.hibernate.validator.engine.ConfigurationImpl.<clinit>(ConfigurationImpl.java:58) [:4.1.0.Final] at org.hibernate.validator.HibernateValidator.createGenericConfiguration(HibernateValidator.java:42) [:4.0.2.GA] at javax.validation.Validation$GenericBootstrapImpl.configure(Validation.java:269) [:6.0.0.Final] at javax.validation.Validation.buildDefaultValidatorFactory(Validation.java:111) [:6.0.0.Final] at org.jboss.seam.validation.ValidationExtension$1.create(ValidationExtension.java:170) [:] at org.jboss.seam.validation.ValidationExtension$1.create(ValidationExtension.java:86) [:] at org.jboss.weld.context.AbstractContext.get(AbstractContext.java:121) [:6.0.0.Final] at org.jboss.weld.bean.proxy.ContextBeanInstance.getInstance(ContextBeanInstance.java:99) [:6.0.0.Final] at org.jboss.weld.bean.proxy.ProxyMethodHandler.invoke(ProxyMethodHandler.java:124) [:6.0.0.Final] at org.jboss.weld.proxies.org$jboss$weld$serialization$ContextualStoreImpl2_$$_WeldClientProxy.getValidator(org$jboss$weld$serialization$ContextualStoreImpl2_$$_WeldClientProxy.java) at org.jboss.seam.validation.ValidationExtension$2.create(ValidationExtension.java:285) [:] at org.jboss.seam.validation.ValidationExtension$2.create(ValidationExtension.java:198) [:] at org.jboss.weld.context.AbstractContext.get(AbstractContext.java:121) [:6.0.0.Final] at org.jboss.weld.bean.proxy.ContextBeanInstance.getInstance(ContextBeanInstance.java:99) [:6.0.0.Final] at org.jboss.weld.bean.proxy.ProxyMethodHandler.invoke(ProxyMethodHandler.java:124) [:6.0.0.Final] at org.jboss.weld.proxies.org$jboss$weld$serialization$ContextualStoreImpl1_$$_WeldClientProxy.unwrap(org$jboss$weld$serialization$ContextualStoreImpl1_$$_WeldClientProxy.java) at org.jboss.seam.validation.ValidationInterceptor.validateMethodInvocation(ValidationInterceptor.java:48) [:] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [:1.6.0_21] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) [:1.6.0_21] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) [:1.6.0_21] at java.lang.reflect.Method.invoke(Method.java:597) [:1.6.0_21] at org.jboss.interceptor.proxy.InterceptorInvocation$InterceptorMethodInvocation.invoke(InterceptorInvocation.java:72) [:2.0.0.CR1] at org.jboss.interceptor.proxy.SimpleInterceptionChain.invokeNextInterceptor(SimpleInterceptionChain.java:82) [:2.0.0.CR1] at org.jboss.interceptor.proxy.InterceptorMethodHandler.executeInterception(InterceptorMethodHandler.java:133) [:2.0.0.CR1] at org.jboss.interceptor.proxy.InterceptorMethodHandler.invoke(InterceptorMethodHandler.java:112) [:2.0.0.CR1] at org.jboss.weld.bean.proxy.CombinedInterceptorAndDecoratorStackMethodHandler.invoke(CombinedInterceptorAndDecoratorStackMethodHandler.java:66) [:6.0.0.Final] at org.jboss.seam.validation.org$jboss$weld$bean-jboss$classloader:id="vfs:$$$home$mgencur$Java$jboss6$jboss6final$jboss-6$0$0$Final$server$default$deploy$validation-helloworld$war"-ManagedBean-class_org$jboss$seam$validation$HelloWorldService_$$_WeldSubclass.sayHello(org$jboss$weld$bean-jboss$classloader:id="vfs:$$$home$mgencur$Java$jboss6$jboss6final$jboss-6$0$0$Final$server$default$deploy$validation-helloworld$war"-ManagedBean-class_org$jboss$seam$validation$HelloWorldService_$$_WeldSubclass.java) at org.jboss.seam.validation.org$jboss$weld$bean-jboss$classloader:id="vfs:$$$home$mgencur$Java$jboss6$jboss6final$jboss-6$0$0$Final$server$default$deploy$validation-helloworld$war"-ManagedBean-class_org$jboss$seam$validation$HelloWorldService_$$_WeldClientProxy.sayHello(org$jboss$weld$bean-jboss$classloader:id="vfs:$$$home$mgencur$Java$jboss6$jboss6final$jboss-6$0$0$Final$server$default$deploy$validation-helloworld$war"-ManagedBean-class_org$jboss$seam$validation$HelloWorldService_$$_WeldClientProxy.java) at org.jboss.seam.validation.HelloWorldServlet.doGet(HelloWorldServlet.java:47) [:] at javax.servlet.http.HttpServlet.service(HttpServlet.java:734) [:1.0.0.Final] at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) [:1.0.0.Final] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:324) [:6.0.0.Final] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:242) [:6.0.0.Final] at org.jboss.weld.servlet.ConversationPropagationFilter.doFilter(ConversationPropagationFilter.java:67) [:6.0.0.Final] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:274) [:6.0.0.Final] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:242) [:6.0.0.Final] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:275) [:6.0.0.Final] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) [:6.0.0.Final] at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:181) [:6.0.0.Final] at org.jboss.modcluster.catalina.CatalinaContext$RequestListenerValve.event(CatalinaContext.java:285) [:1.1.0.Final] at org.jboss.modcluster.catalina.CatalinaContext$RequestListenerValve.invoke(CatalinaContext.java:261) [:1.1.0.Final] at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:88) [:6.0.0.Final] at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:100) [:6.0.0.Final] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) [:6.0.0.Final] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) [:6.0.0.Final] at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158) [:6.0.0.Final] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) [:6.0.0.Final] at org.jboss.web.tomcat.service.request.ActiveRequestResponseCacheValve.invoke(ActiveRequestResponseCacheValve.java:53) [:6.0.0.Final] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:362) [:6.0.0.Final] at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:877) [:6.0.0.Final] at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:654) [:6.0.0.Final] at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:951) [:6.0.0.Final] at java.lang.Thread.run(Thread.java:619) [:1.6.0_21] -- This message is automatically generated by JIRA. 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