Error Message

SecurityException; nested exception is:   java.lang.SecurityException: Authentication exception, principal=null
Stacktrace

java.rmi.AccessException: SecurityException; nested exception is: 
	java.lang.SecurityException: Authentication exception, principal=null
	at org.jboss.ejb.plugins.LogInterceptor.handleException(LogInterceptor.java:388)
	at org.jboss.ejb.plugins.LogInterceptor.invokeHome(LogInterceptor.java:136)
	at org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invokeHome(ProxyFactoryFinderInterceptor.java:107)
	at org.jboss.ejb.SessionContainer.internalInvokeHome(SessionContainer.java:639)
	at org.jboss.ejb.Container.invoke(Container.java:1109)
	at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:157)
	at org.jboss.mx.server.Invocation.dispatch(Invocation.java:96)
	at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
	at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
	at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:668)
	at org.jboss.invocation.pooled.server.PooledInvoker$MBeanServerAction.invoke(PooledInvoker.java:896)
	at org.jboss.invocation.pooled.server.PooledInvoker.invoke(PooledInvoker.java:383)
	at org.jboss.invocation.pooled.server.ServerThread.processInvocation(ServerThread.java:237)
	at org.jboss.invocation.pooled.server.ServerThread.dorun(ServerThread.java:279)
	at org.jboss.invocation.pooled.server.ServerThread.run(ServerThread.java:158)
Caused by: java.lang.SecurityException: Authentication exception, principal=null
	at org.jboss.ejb.plugins.SecurityInterceptor.checkSecurityContext(SecurityInterceptor.java:335)
	at org.jboss.ejb.plugins.SecurityInterceptor.process(SecurityInterceptor.java:256)
	at org.jboss.ejb.plugins.SecurityInterceptor.invokeHome(SecurityInterceptor.java:205)
	at org.jboss.ejb.plugins.security.PreSecurityInterceptor.process(PreSecurityInterceptor.java:169)
	at org.jboss.ejb.plugins.security.PreSecurityInterceptor.invokeHome(PreSecurityInterceptor.java:91)
	at org.jboss.ejb.plugins.SSLSessionInterceptor.invokeHome(SSLSessionInterceptor.java:61)
	at org.jboss.ejb.plugins.LogInterceptor.invokeHome(LogInterceptor.java:132)