default HdfsFileStatus create(ClientProtocol instance, String src, FsPermission masked,
      String clientName, EnumSetWritable<CreateFlag> flag, boolean createParent, short replication,
      long blockSize, CryptoProtocolVersion[] supportedVersions) throws Exception {
      try {
        return (HdfsFileStatus) createObject(instance, src, masked, clientName, flag, createParent,
          replication, blockSize, supportedVersions);
      } catch (InvocationTargetException e) {
        if (e.getCause() instanceof Exception) {
          throw (Exception) e.getCause();
        } else {
          throw new RuntimeException(e.getCause());
        }
      }
    }
Helper class for implementing {@link FanOutOneBlockAsyncDFSOutput}.
hbase-asyncfs/src/main/java/org/apache/hadoop/hbase/io/asyncfs/FanOutOneBlockAsyncDFSOutputHelper.java