Returns information about the currently logged-in user.
This uses the underlying security provider to access the provider-specific user object. The properties available are not defined by the Security API, see your security provider documentation.
Typically this will provide access to the user principal, but the type of the object and its properties are undefined.
Your full name is <s:info property="fullName"/>
|property||Optional - The property of the user object to return. If not supplied, the securityInfo object will be returned.|