code: @RequestMapping(value = "preCheckDelete.action", method = RequestMethod.POST)
      public ResponseEntity<?> preCheckDelete(@RequestParam("wpsProcessId") Integer wpsProcessId) {
          List<String> result = null;
          try {
              result = service.preCheckDelete(wpsProcessId);
          } catch (Exception e) {
              final String msg = e.getMessage();
              LOG.error("Could not pre-check WpsProcessExecute deletion: " + msg);
              return new ResponseEntity<>(ResultSet.error(msg), HttpStatus.INTERNAL_SERVER_ERROR);
          }
          return new ResponseEntity<>(ResultSet.success(result), HttpStatus.OK);
      }
docs: Checks in which {@link WpsPlugin}s the given {@link WpsProcessExecute} is
  contained (and from which it would be "disconnected" in case of
  deletion).
  
  @param wpsProcessId ID of the {@link WpsProcessExecute}
  @return