code: public static <T> T doAs(final SecurityIdentity securityIdentity, final InetAddress remoteAddress, final PrivilegedAction<T> action) {
          return doAs(false, securityIdentity, remoteAddress, action);
      }
docs: Perform work with a new {@code AccessAuditContext} as a particular {@code SecurityIdentity}
  @param securityIdentity the {@code SecurityIdentity} that the specified {@code action} will run as. May be {@code null}
  @param remoteAddress the remote address of the caller.
  @param action the work to perform. Cannot be {@code null}
  @param <T> the type of teh return value
  @return the value returned by the PrivilegedAction's <code>run</code> method
  
  @exception NullPointerException if the specified
  <code>PrivilegedExceptionAction</code> is
  <code>null</code>.
  
  @exception SecurityException if the caller does not have permission
  to invoke this method.