The code for my test is : | public class FindClaimTest extends SeamTest { | | @Test | public void testFindUnregisteredClaims() throws Exception { | new ComponentTest() { | | protected void testComponents() throws Exception { | invokeMethod("#{registrationFinder.find}"); | } | | }.run(); | } | } However, when this test runs , its failing with the message "javax.el.ELException: javax.ejb.EJBException: java.lang.IllegalArgumentException: Stack must not be null" The full stacktrace is shown below : javax.el.ELException: javax.ejb.EJBException: java.lang.IllegalArgumentException: Stack must not be null | at org.jboss.el.util.ReflectionUtil.invokeMethod(ReflectionUtil.java:329) | at org.jboss.el.util.ReflectionUtil.invokeMethod(ReflectionUtil.java:338) | at org.jboss.el.parser.AstPropertySuffix.invoke(AstPropertySuffix.java:58) | at org.jboss.el.parser.AstValue.invoke(AstValue.java:96) | at org.jboss.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:276) | at org.jboss.seam.core.Expressions$2.invoke(Expressions.java:174) | at org.jboss.seam.mock.BaseSeamTest$ComponentTest.invokeMethod(BaseSeamTest.java:130) | at com.introspect.scs.testclients.FindClaimTest$1.testComponents(FindClaimTest.java:13) | at org.jboss.seam.mock.BaseSeamTest$ComponentTest.run(BaseSeamTest.java:156) | at com.introspect.scs.testclients.FindClaimTest.testFindUnregisteredClaims(FindClaimTest.java:10) | Caused by: javax.ejb.EJBException: java.lang.IllegalArgumentException: Stack must not be null | at org.jboss.ejb3.tx.Ejb3TxPolicy.handleExceptionInOurTx(Ejb3TxPolicy.java:63) | at org.jboss.aspects.tx.TxPolicy.invokeInOurTx(TxPolicy.java:83) | at org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:193) | at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | at org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:76) | at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | at org.jboss.ejb3.stateful.StatefulInstanceInterceptor.invoke(StatefulInstanceInterceptor.java:83) | at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | at org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:77) | at org.jboss.ejb3.security.Ejb3AuthenticationInterceptor.invoke(Ejb3AuthenticationInterceptor.java:105) | at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:46) | at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | at org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:106) | at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | at org.jboss.ejb3.stateful.StatefulContainer.localInvoke(StatefulContainer.java:204) | at org.jboss.ejb3.stateful.StatefulLocalProxy.invoke(StatefulLocalProxy.java:100) | at $Proxy67.find(Unknown Source) | at org.jboss.seam.util.Reflections.invoke(Reflections.java:21) | at org.jboss.seam.intercept.RootInvocationContext.proceed(RootInvocationContext.java:31) | at org.jboss.seam.intercept.ClientSideInterceptor$1.proceed(ClientSideInterceptor.java:72) | at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:56) | at org.jboss.seam.ejb.RemoveInterceptor.aroundInvoke(RemoveInterceptor.java:41) | at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) | at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:106) | at org.jboss.seam.intercept.ClientSideInterceptor.invoke(ClientSideInterceptor.java:50) | at org.javassist.tmp.java.lang.Object_$$_javassist_68.find(Object_$$_javassist_68.java) | at org.jboss.el.util.ReflectionUtil.invokeMethod(ReflectionUtil.java:325) | ... 31 more | Caused by: java.lang.IllegalArgumentException: Stack must not be null | at org.jboss.seam.core.ConversationEntry.<init>(ConversationEntry.java:39) | at org.jboss.seam.core.ConversationEntries.createConversationEntry(ConversationEntries.java:53) | at org.jboss.seam.core.Manager.createConversationEntry(Manager.java:510) | at org.jboss.seam.core.Manager.beginConversation(Manager.java:531) | at org.jboss.seam.core.ConversationInterceptor.beginConversation(ConversationInterceptor.java:212) | at org.jboss.seam.core.ConversationInterceptor.beginConversationIfNecessary(ConversationInterceptor.java:149) | at org.jboss.seam.core.ConversationInterceptor.aroundInvoke(ConversationInterceptor.java:55) | at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) | at org.jboss.seam.core.MethodContextInterceptor.aroundInvoke(MethodContextInterceptor.java:42) | at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) | at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:106) | at org.jboss.seam.intercept.SessionBeanInterceptor.aroundInvoke(SessionBeanInterceptor.java:53) | at org.jboss.ejb3.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:118) | at org.jboss.ejb3.interceptor.EJB3InterceptorsInterceptor.invoke(EJB3InterceptorsInterceptor.java:63) | at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | at org.jboss.ejb3.entity.ExtendedPersistenceContextPropagationInterceptor.invoke(ExtendedPersistenceContextPropagationInterceptor.java:57) | at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | at org.jboss.ejb3.entity.TransactionScopedEntityManagerInterceptor.invoke(TransactionScopedEntityManagerInterceptor.java:54) | at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | at org.jboss.ejb3.AllowedOperationsInterceptor.invoke(AllowedOperationsInterceptor.java:47) | at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | at org.jboss.aspects.tx.TxPolicy.invokeInOurTx(TxPolicy.java:79) | ... 65 more Any pointers? Thanks jeff mutonho View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4076081#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...