Workaround: Workaround Exists
Workaround Description: Renaming _seamBooking-ear-2.1.1.GA.EPP51.ear_ (as found in the Portlet Bridge directory) to _seamEAR.ear_ gets you around the problem.
project_key: JBEPP

When the Seam Booking Portlet from the Portal Booking Demo is placed on a page, an anonymous user can access it and the portlet is displayed correctly without any exception being thrown. When accessing the portlet after signing in, the portlet is not displayed, because the authenticator cannot be instantiated.

Stacktrace from the server log (shortened):

{code}
17:27:42,585 ERROR [Exceptions] handled and logged exception
javax.el.ELException: org.jboss.seam.InstantiationException: Could not instantiate Seam component: authenticator
        at org.jboss.el.util.ReflectionUtil.invokeMethod(ReflectionUtil.java:339)
        at org.jboss.el.util.ReflectionUtil.invokeMethod(ReflectionUtil.java:348)
        at org.jboss.el.parser.AstPropertySuffix.invoke(AstPropertySuffix.java:58)
        ...
        at java.lang.Thread.run(Thread.java:662)
Caused by: org.jboss.seam.InstantiationException: Could not instantiate Seam component: authenticator
        at org.jboss.seam.Component.newInstance(Component.java:2170)
        ...
Caused by: javax.naming.NameNotFoundException: seamEAR not bound
        at org.jnp.server.NamingServer.getBinding(NamingServer.java:771)
        ...
{code}