static void handleThreeBytes()

in datasketches-memory-java8/src/main/java/org/apache/datasketches/memory/internal/Utf8.java [517:532]

• 14 lines of code
• 7 McCabe index (conditional complexity)

    static void handleThreeBytes(
        final byte byte1, final byte byte2, final byte byte3,
        final Appendable dst)
        throws IOException, Utf8CodingException {
      if (isNotTrailingByte(byte2)
          // overlong? 5 most significant bits must not all be zero
          || ((byte1 == (byte) 0xE0) && (byte2 < (byte) 0xA0))
          // check for illegal surrogate codepoints
          || ((byte1 == (byte) 0xED) && (byte2 >= (byte) 0xA0))
          || isNotTrailingByte(byte3)) {
        final byte[] out = new byte[] {byte1, byte2, byte3};
        throw Utf8CodingException.illegalUtf8DecodeByteSequence(out);
      }
      dst.append((char)
          (((byte1 & 0x0F) << 12) | (trailingByteValue(byte2) << 6) | trailingByteValue(byte3)));
    }