org.picketlink.authentication.AuthenticationException: Authentication failed.
	at org.picketlink.internal.DefaultIdentity.authenticate(DefaultIdentity.java:204) [picketlink-impl-2.5.0.Beta4.jar:]
	at org.picketlink.internal.DefaultIdentity.login(DefaultIdentity.java:110) [picketlink-impl-2.5.0.Beta4.jar:]
	at org.picketlink.internal.DefaultIdentity$Proxy$_$$_WeldClientProxy.login(DefaultIdentity$Proxy$_$$_WeldClientProxy.java) [picketlink-impl-2.5.0.Beta4.jar:]
	at org.picketlink.authentication.web.AuthenticationFilter.doFilter(AuthenticationFilter.java:141) [picketlink-api-2.5.0.Beta4.jar:]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:280) [jbossweb-7.0.13.Final.jar:]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.13.Final.jar:]
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:275) [jbossweb-7.0.13.Final.jar:]
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161) [jbossweb-7.0.13.Final.jar:]
	at org.jboss.as.jpa.interceptor.WebNonTxEmCloserValve.invoke(WebNonTxEmCloserValve.java:50) [jboss-as-jpa-7.1.1.Final.jar:7.1.1.Final]
	at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:153) [jboss-as-web-7.1.1.Final.jar:7.1.1.Final]
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:155) [jbossweb-7.0.13.Final.jar:]
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) [jbossweb-7.0.13.Final.jar:]
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) [jbossweb-7.0.13.Final.jar:]
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:368) [jbossweb-7.0.13.Final.jar:]
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:877) [jbossweb-7.0.13.Final.jar:]
	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:671) [jbossweb-7.0.13.Final.jar:]
	at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:930) [jbossweb-7.0.13.Final.jar:]
	at java.lang.Thread.run(Thread.java:722) [rt.jar:1.7.0_09]
Caused by: java.lang.ClassCastException: org.picketlink.idm.model.SimpleAgent cannot be cast to org.picketlink.idm.model.User
	at org.picketlink.authentication.internal.IdmAuthenticator.authenticate(IdmAuthenticator.java:52) [picketlink-impl-2.5.0.Beta4.jar:]
	at org.picketlink.internal.DefaultIdentity.authenticate(DefaultIdentity.java:187) [picketlink-impl-2.5.0.Beta4.jar:]
	... 17 more