37 	int bitLength;  // Always non-negative.  field in BitBuffer
46 		bitLength = 0;  in BitBuffer()
55 		if (index < 0 || index >= bitLength)  in getBit()
64 		if (bitLength % 8 != 0)  in getBytes()
66 		byte[] result = new byte[bitLength / 8];  in getBytes()
78 		if (len > Integer.MAX_VALUE - bitLength)  in appendBits()
81 		if (bitLength + len + 1 > data.length << 5)  in appendBits()
83 		assert bitLength + len <= data.length << 5;  in appendBits()
85 		int remain = 32 - (bitLength & 0x1F);  in appendBits()
88 			data[bitLength >>> 5] |= val >>> (len - remain);  in appendBits()
89 			bitLength += remain;  in appendBits()
90 			assert (bitLength & 0x1F) == 0;  in appendBits()
95 		data[bitLength >>> 5] |= val << (remain - len);  in appendBits()
96 		bitLength += len;  in appendBits()
112 		if (len > Integer.MAX_VALUE - bitLength)  in appendBits()
115 		while (bitLength + len > data.length * 32)  in appendBits()
118 		int shift = bitLength % 32;  in appendBits()
120 			System.arraycopy(vals, 0, data, bitLength / 32, (len + 31) / 32);  in appendBits()
121 			bitLength += len;  in appendBits()
125 				data[bitLength >>> 5] |= word >>> shift;  in appendBits()
126 				bitLength += 32;  in appendBits()
127 				data[bitLength >>> 5] = word << (32 - shift);  in appendBits()