docs: private void deleteEntity(String type, String id) throws StorageException {
          try {
              JestResult response = esClient.execute(new Delete.Builder(id).index(getIndexName()).type(type).build());
              if (!response.isSucceeded()) {
                  throw new StorageException("Document could not be deleted because it did not exist:" + response.getErrorMessage()); //$NON-NLS-1$
              }
          } catch (StorageException e) {
              throw e;
          } catch (Exception e) {
              throw new StorageException(e);
          }
      }