name

1 

The name that uniquely identifies the Servlet container authentication realm. 

type

0 or 1 

The type of a built-in authentication realm. Only applicable when class is omitted. The value can be file, ldap, pam, certificate, or native.

class

0 or 1 

The class that implements a Servlet container authentication realm. Only applicable when type is omitted. The value is a class name.

property

0 or more 

The Servlet container authentication realm properties. For more details, see property.