docs: private Subject acceptTransportContext(ServerRequestInfo ri, TSSConfig tssPolicy) throws SASException {
          Subject subject = tssPolicy.check(SSLSessionManager.getSSLSession(ri.request_id()), null, codec);
  
          if (subject != null) {
              // Set caller subject only, the EJBSecurityCollaboratorImpl will set the delegation subject if needed.
              subjectManager.setCallerSubject(subject);
          }
          return subject;
      }