hpack/src/main/java/com/twitter/hpack/StaticTable.java
static int getIndex(byte[] name) {
    String nameString = new String(name, 0, name.length, ISO_8859_1);
    Integer index = STATIC_INDEX_BY_NAME.get(nameString);
    if (index == null) {
      return -1;
    }
    return index;
  }
static int getIndex(byte[] name) {
    String nameString = new String(name, 0, name.length, ISO_8859_1);
    Integer index = STATIC_INDEX_BY_NAME.get(nameString);
    if (index == null) {
      return -1;
    }
    return index;
  }
Returns the lowest index value for the given header field name in the static table.
Returns -1 if the header field name is not in the static table.