code: public void clearUploadTempData() {
          LOG.debug("Cleaning up temp data...");
          // delete file system zombies
          for (final FileUploadProgress fileUploadProgress : getAllFileUploadProgressValuesFromOverallUploadProcessList()) {
              if (!StringUtils.isBlank(fileUploadProgress.getFilePath())) {
                  final boolean deleted = FileUtils.deleteQuietly(new File(fileUploadProgress.getFilePath()));
                  if (!deleted) {
                      LOG.warn("TempFile was not deleted: {}", fileUploadProgress.getFilePath());
                  }
              }
          }
          clearFileStates();
      }
docs: Clears all temp data collected while uploading files.