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    Update Tomcat container adapters to 1.0.0.CR8 or further. If that doesn't work, 0D0A3C21 in ASCII is <!, first characters in a HTML file, so, check if you're not reading a different file or if there's an issue with your deserialization.

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java.io.StreamCorruptedException: invalid stream header: 41444D49	at java.io.ObjectInputStream.readStreamHeader(ObjectInputStream.java:808)	at java.io.ObjectInputStream.(ObjectInputStream.java:301)	at org.hibernate.internal.util.SerializationHelper$CustomObjectInputStream.(SerializationHelper.java:309)	at org.hibernate.internal.util.SerializationHelper$CustomObjectInputStream.(SerializationHelper.java:299)	at org.hibernate.internal.util.SerializationHelper.doDeserialize(SerializationHelper.java:218)	at org.hibernate.internal.util.SerializationHelper.deserialize(SerializationHelper.java:287)	at org.hibernate.type.descriptor.java.SerializableTypeDescriptor.fromBytes(SerializableTypeDescriptor.java:138)	at org.hibernate.type.descriptor.java.SerializableTypeDescriptor.wrap(SerializableTypeDescriptor.java:113)	at org.hibernate.type.descriptor.java.SerializableTypeDescriptor.wrap(SerializableTypeDescriptor.java:27)	at org.hibernate.type.descriptor.sql.VarbinaryTypeDescriptor$2.doExtract(VarbinaryTypeDescriptor.java:60)	at org.hibernate.type.descriptor.sql.BasicExtractor.extract(BasicExtractor.java:47)	at org.hibernate.type.AbstractStandardBasicType.nullSafeGet(AbstractStandardBasicType.java:238)	at org.hibernate.type.AbstractStandardBasicType.nullSafeGet(AbstractStandardBasicType.java:234)	at org.hibernate.type.AbstractStandardBasicType.nullSafeGet(AbstractStandardBasicType.java:224)	at org.hibernate.type.AbstractStandardBasicType.hydrate(AbstractStandardBasicType.java:300)	at org.hibernate.persister.entity.AbstractEntityPersister.hydrate(AbstractEntityPersister.java:2738)	at org.hibernate.loader.Loader.loadFromResultSet(Loader.java:1729)	at org.hibernate.loader.Loader.instanceNotYetLoaded(Loader.java:1655)	at org.hibernate.loader.Loader.getRow(Loader.java:1544)	at org.hibernate.loader.Loader.getRowFromResultSet(Loader.java:727)	at org.hibernate.loader.Loader.processResultSet(Loader.java:972)	at org.hibernate.loader.Loader.doQuery(Loader.java:930)	at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:336)	at org.hibernate.loader.Loader.doList(Loader.java:2617)	at org.hibernate.loader.Loader.doList(Loader.java:2600)	at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2429)	at org.hibernate.loader.Loader.list(Loader.java:2424)	at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:501)	at org.hibernate.hql.internal.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:371)	at org.hibernate.engine.query.spi.HQLQueryPlan.performList(HQLQueryPlan.java:216)	at org.hibernate.internal.SessionImpl.list(SessionImpl.java:1326)	at org.hibernate.internal.QueryImpl.list(QueryImpl.java:87)	at org.hibernate.jpa.internal.QueryImpl.list(QueryImpl.java:606)	at org.hibernate.jpa.internal.QueryImpl.getSingleResult(QueryImpl.java:529)	at de.jb.toyjo.dao.GenericDAO.findOneResult(GenericDAO.java:130)	at de.jb.toyjo.dao.UserDAO.findUserByEmail(UserDAO.java:23)	at de.jb.toyjo.facade.UserFacade.isValidLogin(UserFacade.java:14)	at de.jb.toyjo.bean.LoginBean.login(LoginBean.java:24)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:498)	at com.sun.el.util.ReflectionUtil.invokeMethod(ReflectionUtil.java:181)	at com.sun.el.parser.AstValue.invoke(AstValue.java:289)	at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:304)	at org.jboss.weld.util.el.ForwardingMethodExpression.invoke(ForwardingMethodExpression.java:40)	at org.jboss.weld.el.WeldMethodExpression.invoke(WeldMethodExpression.java:50)	at org.jboss.weld.util.el.ForwardingMethodExpression.invoke(ForwardingMethodExpression.java:40)	at org.jboss.weld.el.WeldMethodExpression.invoke(WeldMethodExpression.java:50)	at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:105)	at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:87)	at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:102)	at javax.faces.component.UICommand.broadcast(UICommand.java:315)	at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:790)	at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1282)	at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:81)	at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)	at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:198)	at javax.faces.webapp.FacesServlet.service(FacesServlet.java:658)	at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:85)	at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:129)	at de.jb.toyjo.filter.LoginCheckFilter.doFilter(LoginCheckFilter.java:84)	at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)	at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)	at io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:84)	at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62)	at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36)	at org.wildfly.extension.undertow.security.SecurityContextAssociationHandler.handleRequest(SecurityContextAssociationHandler.java:78)	at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)	at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:131)	at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57)	at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)	at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46)	at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64)	at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:60)	at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:77)	at io.undertow.security.handlers.NotificationReceiverHandler.handleRequest(NotificationReceiverHandler.java:50)	at io.undertow.security.handlers.AbstractSecurityContextAssociationHandler.handleRequest(AbstractSecurityContextAssociationHandler.java:43)	at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)	at org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61)	at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)	at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)	at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:292)	at io.undertow.servlet.handlers.ServletInitialHandler.access$100(ServletInitialHandler.java:81)	at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:138)	at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:135)	at io.undertow.servlet.core.ServletRequestContextThreadSetupAction$1.call(ServletRequestContextThreadSetupAction.java:48)	at io.undertow.servlet.core.ContextClassLoaderSetupAction$1.call(ContextClassLoaderSetupAction.java:43)	at io.undertow.servlet.api.LegacyThreadSetupActionWrapper$1.call(LegacyThreadSetupActionWrapper.java:44)	at io.undertow.servlet.api.LegacyThreadSetupActionWrapper$1.call(LegacyThreadSetupActionWrapper.java:44)	at io.undertow.servlet.api.LegacyThreadSetupActionWrapper$1.call(LegacyThreadSetupActionWrapper.java:44)	at io.undertow.servlet.api.LegacyThreadSetupActionWrapper$1.call(LegacyThreadSetupActionWrapper.java:44)	at io.undertow.servlet.api.LegacyThreadSetupActionWrapper$1.call(LegacyThreadSetupActionWrapper.java:44)	at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:272)	at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:81)	at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:104)	at io.undertow.server.Connectors.executeRootHandler(Connectors.java:202)	at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:805)	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)	at java.lang.Thread.run(Thread.java:745)