code: @Override
      @FFDCIgnore(EntryNotFoundException.class)
      public String getGroupDisplayName(String groupSecurityName) throws EntryNotFoundException, RegistryException {
          for (UserRegistry registry : delegates) {
              try {
                  return registry.getGroupDisplayName(groupSecurityName);
              } catch (EntryNotFoundException enf) {
                  // We ignore this and keep trying. If we can't find we'll throw below
                  if (TraceComponent.isAnyTracingEnabled() && tc.isDebugEnabled()) {
                      Tr.debug(tc, "EntryNotFoundException caught on getGroupDisplayName", registry, groupSecurityName, enf);
                  }
              }
          }
          throw new EntryNotFoundException(groupSecurityName + " does not exist");
      }
docs: {@inheritDoc}