title: JBoss AS 7 migration - java.lang.ClassNotFoundException: org.hibernate.validator.ClassValidator
body: <p>I have an application running on JBoss AS 4.2.3 and am trying to migrate this to JBoss AS 7.0.2.  I am also upgrading seam from 2.1.1 to 2.2.2.  I have resolved a few of the class not found exceptions, but I am stuck on </p>
  
  <p><code>java.lang.ClassNotFoundException: org.hibernate.validator.ClassValidator</code></p>
  
  <p>My full stack trace is below.</p>
  
  <p>I'm not very clear on the new class loader in AS 7.  Does Hibernate 4 work with seam 2.2.2? I have tried specifying the exports in jboss-deployment-structure.xml to use org.hibernate and org.hibernate.validator.  However, when I look in the jars in these locations, I do not see the ClassValidator class...</p>
  
  <p>I have also tried adding hibernate 3 jars to the EAR/lib and specifying them in the manifest, but that does not change anything. I see that hibernate 3 hibernate-validator.jar does contain the classValidator class, but it still doesn't find it. </p>
  
  <p>UPDATE I also tried hibernate-validator-legacy-4.0.2.GA.jar</p>
  
  <pre><code>hibernate-annotations-3.4.0.GA.jar
  hibernate-commons-annotations-3.1.0.GA.jar
  hibernate-core-3.3.0.SP1.jar
  hibernate-validator-3.1.0.GA.jar
  </code></pre>
  
  <pre><code>14:16:07,776 INFO  [org.jboss.seam.Component] (MSC service thread 1-2) Component: Test, scope: EVENT, type: JAVA_BEAN, class: com.test.Test 
  14:16:07,789 ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[default-host].[/oneSourceUI]] (MSC service thread 1-2) Exception sending context initialized event to listener instance of class org.jboss.seam.servlet.SeamListener: java.lang.RuntimeException: Could not create Component: Test
      at org.jboss.seam.init.Initialization.addComponent(Initialization.java:1202) [jboss-seam.jar:]
      at org.jboss.seam.init.Initialization.installComponents(Initialization.java:1118) [jboss-seam.jar:]
      at org.jboss.seam.init.Initialization.init(Initialization.java:737) [jboss-seam.jar:]
      at org.jboss.seam.servlet.SeamListener.contextInitialized(SeamListener.java:36) [jboss-seam.jar:]
      at org.apache.catalina.core.StandardContext.contextListenerStart(StandardContext.java:3368) [jbossweb-7.0.1.Final.jar:7.0.2.Final]
      at org.apache.catalina.core.StandardContext.start(StandardContext.java:3821) [jbossweb-7.0.1.Final.jar:7.0.2.Final]
      at org.jboss.as.web.deployment.WebDeploymentService.start(WebDeploymentService.java:70) [jboss-as-web-7.0.2.Final.jar:7.0.2.Final]
      at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1824)
      at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1759)
      at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) [:1.7.0_01]
      at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) [:1.7.0_01]
      at java.lang.Thread.run(Thread.java:722) [:1.7.0_01]
  Caused by: java.lang.NoClassDefFoundError: org/hibernate/validator/ClassValidator
      at java.lang.Class.getDeclaredMethods0(Native Method) [:1.7.0_01]
      at java.lang.Class.privateGetDeclaredMethods(Class.java:2442) [:1.7.0_01]
      at java.lang.Class.getDeclaredMethods(Class.java:1808) [:1.7.0_01]
      at org.jboss.seam.Component.initMembers(Component.java:553) [jboss-seam.jar:]
      at org.jboss.seam.Component.(Component.java:247) [jboss-seam.jar:]
      at org.jboss.seam.Component.(Component.java:208) [jboss-seam.jar:]
      at org.jboss.seam.init.Initialization.addComponent(Initialization.java:1186) [jboss-seam.jar:]
      ... 11 more
  Caused by: java.lang.ClassNotFoundException: org.hibernate.validator.ClassValidator from [Module "deployment.test-ear.ear.jboss-seam.jar:main" from Service Module Loader]
      at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:191)
      at org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:361)
      at org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:333)
      at org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:310)
      at org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:103)
      ... 18 more
  
  14:16:07,798 INFO  [javax.enterprise.resource.webcontainer.jsf.config] (MSC service thread 1-2) Initializing Mojarra (1.2_15-20110809-SNAPSHOT) for context '/test
  14:16:07,828 SEVERE [javax.enterprise.resource.webcontainer.jsf.application] (MSC service thread 1-2) JSF1051: Service entry 'org.jboss.as.web.deployment.jsf.JsfInjectionProvider' does not extend DiscoverableInjectionProvider.  Entry will be ignored.
  14:16:07,829 INFO  [javax.enterprise.resource.webcontainer.jsf.application] (MSC service thread 1-2) JSF1048: PostConstruct/PreDestroy annotations present.  ManagedBeans methods marked with these annotations will have said annotations processed.
  14:16:07,852 ERROR [org.apache.catalina.core.StandardContext] (MSC service thread 1-2) Error listenerStart
  14:16:07,854 ERROR [org.apache.catalina.core.StandardContext] (MSC service thread 1-2) Context [/test] startup failed due to previous errors
  14:16:07,855 INFO  [org.jboss.web] (MSC service thread 1-2) registering web context: /oneSourceUI
  14:16:08,101 INFO  [org.apache.catalina.core.StandardContext] (MSC service thread 1-1) Container org.apache.catalina.core.ContainerBase.[jboss.web].[default-host].[/oneSourceUI] has not been started
  14:16:08,816 INFO  [org.jboss.as.server.controller] (DeploymentScanner-threads - 2) Deployment of "test-ear.ear" was rolled back with failure message {"Services with missing/unavailable dependencies" => ["jboss.persistenceunit.\"test-ear.ear/test-ejb.jar#testBackout\" missing [ jboss.naming.context.java.testBackoutDatasource ]","jboss.persistenceunit.\"test-ear.ear/test-ejb.jar#test\" missing [ jboss.naming.context.java.testDatasource ]"]}
  14:16:08,857 INFO  [org.jboss.as.server.deployment] (MSC service thread 1-1) Stopped deployment test-ejb.jar in 760ms
  14:16:08,857 INFO  [org.jboss.as.server.deployment] (MSC service thread 1-1) Stopped deployment jboss-seam.jar in 761ms
  14:16:09,613 INFO  [org.jboss.as.server.deployment] (MSC service thread 1-1) Stopped deployment oneSourceUI.war in 1517ms
  14:16:09,720 INFO  [org.jboss.as.server.deployment] (MSC service thread 1-1) Stopped deployment oneSourceUI-ear.ear in 1624ms
  14:16:09,728 ERROR [org.jboss.as.deployment] (DeploymentScanner-threads - 1) {"Composite operation failed and was rolled back. Steps that failed:" => {"Operation step-2" => {"Services with missing/unavailable dependencies" => ["jboss.persistenceunit.\"test-ear.ear/test-ejb.jar#testBackout\" missing [ jboss.naming.context.java.testBackoutDatasource ]","jboss.persistenceunit.\"test-ear.ear/test-ejb.jar#test\" missing [ jboss.naming.context.java.testDatasource ]"]}}}
  </code></pre>