java/src/main/java/com/epam/deltix/zstd/Huffman.java (2 lines):
	- line 75: totalWeight += (1 << weights[i]) >> 1;   // TODO same as 1 << (weights[n] - 1)?
	- line 103: final int length = (1 << weight) >> 1;  // TODO: 1 << (weight - 1) ??