code: @Override
      public String copyContent(String sourceSpaceId,
                                String sourceContentId,
                                String destSpaceId,
                                String destContentId) {
          try {
              return super.copyContent(sourceSpaceId,
                                       sourceContentId,
                                       destSpaceId,
                                       destContentId);
          } catch (StorageException e) {
              checkStorageState(e);
              throw e;
          }
      }
docs: {@inheritDoc}