code: public InputStream getDsContent() throws ServerException {
          if (m_dsContent == null && getDatastream() != null) {
              m_dsContent = getDatastream().getContentStream();
  
              // remember we found the policy datastream
              m_hasPolicyDatastream = true;
          }
          return m_dsContent;
      }
docs: get the policy datastream content
  @return InputStream
  @throws ServerException