@Override
  public void setDictionary(byte[] b, int off, int len) {
    throw new UnsupportedOperationException("setDictionary is not supported");
  }
Hadoop decompressor glue for aircompressor decompressors.
hbase-compression/hbase-compression-aircompressor/src/main/java/org/apache/hadoop/hbase/io/compress/aircompressor/HadoopDecompressor.java