assertHasEntry( msg, baseName );
assertHasEntry( nextInterceptor, msg, baseName );
    public NamingEnumeration list( NextInterceptor nextInterceptor, Name baseName ) throws NamingException    {        // check if entry to search exists        String msg = "Attempt to search under non-existant entry: ";        assertHasEntry( msg, baseName );        return nextInterceptor.list( baseName );    }