ClassCastException on failed naming lookups when trace logging enabled on org.jnp.server.NamingServer

There is a bug in the trace logging of failed lookup requests during the dump of the naming contents:

java.lang.ClassCastException: java.util.Hashtable$Entry
at org.jnp.server.NamingServer.getBinding(NamingServer.java:503)
at org.jnp.server.NamingServer.getBinding(NamingServer.java:522)
at org.jnp.server.NamingServer.bind(NamingServer.java:127)
at org.jnp.interfaces.NamingContext.bind(NamingContext.java:551)
at org.jnp.interfaces.NamingContext.bind(NamingContext.java:516)
at javax.naming.InitialContext.bind(InitialContext.java:359)
at org.jboss.security.plugins.JaasSecurityManagerService.startService(Ja
asSecurityManagerService.java:403)
at org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanS
upport.java:274)
at org.jboss.system.ServiceMBeanSupport.jbossInternalLifecycle(ServiceMB
eanSupport.java:230)
at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)