@Override
    public IAuthorizationPrincipal[] getAuthorizedPrincipals(String activity, String target)
            throws AuthorizationException {
        return getAuthorizationService().getAuthorizedPrincipals(getOwner(), activity, target);
    }
@ Override public IAuthorizationPrincipal [ ] getAuthorizedPrincipals ( String activity , String target ) throws AuthorizationException { return getAuthorizationService ( ) . getAuthorizedPrincipals ( getOwner ( ) , activity , target ) ; }
Returns <code>IAuthorizationPrincipals</code> granted <code>IPermissions</code> by the owner
of this <code>IPermissionManager</code>, for the given <code>activity</code> and <code>target
</code>. If either parameter is null, it is ignored.

@return IAuthorizationPrincipal[]
@param activity String - the Permission activity
@param target String - the Permission target