public static List<String> getCachedFilesList(final RpcController controller,
    final AdminService.BlockingInterface admin) throws IOException {
    GetCachedFilesListRequest request = GetCachedFilesListRequest.newBuilder().build();
    GetCachedFilesListResponse response = null;
    try {
      response = admin.getCachedFilesList(controller, request);
    } catch (ServiceException se) {
      throw getRemoteException(se);
    }
    return new ArrayList<>(response.getCachedFilesList());
  }
Get the list of cached files
hbase-client/src/main/java/org/apache/hadoop/hbase/shaded/protobuf/ProtobufUtil.java