static void handleThreeBytesCharBuffer()

in datasketches-memory-java8/src/main/java/org/apache/datasketches/memory/internal/Utf8.java [534:550]

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

    static void handleThreeBytesCharBuffer(
        final byte byte1, final byte byte2, final byte byte3,
        final CharBuffer cb, final char[] ca, final int cp)
        throws 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)) {
        cb.position(cp - cb.arrayOffset());
        final byte[] out = new byte[] {byte1, byte2, byte3};
        throw Utf8CodingException.illegalUtf8DecodeByteSequence(out);
      }
      ca[cp] = (char)
              (((byte1 & 0x0F) << 12) | (trailingByteValue(byte2) << 6) | trailingByteValue(byte3));
    }