public static IndexingStampInfo fromInt4(int[] ints) {
    assert ints.length == 4 : Arrays.toString(ints);
    long indexingFileStamp = (ints[0] & 0x0_ff_ff_ff_ffL) | ((long)ints[1] << 32);
    boolean isBinary = ((ints[2] & 0x80_00_00_00) != 0);
    int indexingCharLength = (ints[2] & ~0x80_00_00_00);
    int indexingByteLength = ints[3];

    return new IndexingStampInfo(indexingFileStamp, indexingByteLength, isBinary ? -1 : indexingCharLength, isBinary);
  }
public static IndexingStampInfo fromInt4(int[] ints)