code: @Override
      public String compareDatastreamChecksum(String pid,
                                              String dsID,
                                              String versionDate) {
          assertInitialized();
          try {
              MessageContext ctx = context.getMessageContext();
              return m_management.compareDatastreamChecksum(ReadOnlyContext
                      .getSoapContext(ctx), pid, dsID, DateUtility
                      .parseDateOrNull(versionDate));
          } catch (Throwable th) {
              LOG.error("Error comparing datastream checksum", th);
              throw CXFUtility.getFault(th);
          }
      }
docs: /*
  (non-Javadoc)
  @see
  org.fcrepo.server.management.FedoraAPIMMTOM#compareDatastreamChecksum
  (String pid ,)String dsID ,)String versionDate )*