code: public CmsSessionInfo getSessionInfo(CmsUUID sessionId) {
  
          // since this method could be called from another thread
          // we have to prevent access before initialization
          if (m_sessionStorageProvider == null) {
              return null;
          }
          return m_sessionStorageProvider.get(sessionId);
      }
docs: Returns the complete user session info of a user from the session storage,
  or <code>null</code> if this session id has no session info attached.<p>
  
  @param sessionId the OpenCms session id to return the session info for
  
  @return the complete user session info of a user from the session storage