resources/src/main/java/org/robolectric/res/android/ResTable_config.java
@Nonnull
  private String unpackLanguageOrRegion(byte[] value, int base) {
    Preconditions.checkState(value.length == 2, "Language or country value must be 2 bytes.");
    if (value[0] == 0 && value[1] == 0) {
      return "";
    }
    if (isTruthy(UnsignedBytes.toInt(value[0]) & 0x80)) {
      byte[] result = new byte[3];
      result[0] = (byte) (base + (value[1] & 0x1F));
      result[1] = (byte) (base + ((value[1] & 0xE0) >>> 5) + ((value[0] & 0x03) << 3));
      result[2] = (byte) (base + ((value[0] & 0x7C) >>> 2));
      return new String(result, US_ASCII);
    }
    return new String(value, US_ASCII);
  }
@Nonnull
  private String unpackLanguageOrRegion(byte[] value, int base) {
    Preconditions.checkState(value.length == 2, "Language or country value must be 2 bytes.");
    if (value[0] == 0 && value[1] == 0) {
      return "";
    }
    if (isTruthy(UnsignedBytes.toInt(value[0]) & 0x80)) {
      byte[] result = new byte[3];
      result[0] = (byte) (base + (value[1] & 0x1F));
      result[1] = (byte) (base + ((value[1] & 0xE0) >>> 5) + ((value[0] & 0x03) << 3));
      result[2] = (byte) (base + ((value[0] & 0x7C) >>> 2));
      return new String(result, US_ASCII);
    }
    return new String(value, US_ASCII);
  }
}