Package java.nio.charset

Examples of java.nio.charset.MalformedInputException


        length = bytesFromUTF8[aByte];

        switch (length) {
        case 0: // check for ASCII
          if (leadByte > 0x7F)
            throw new MalformedInputException(count);
          break;
        case 1:
          if (leadByte < 0xC2 || leadByte > 0xDF)
            throw new MalformedInputException(count);
          state = TRAIL_BYTE_1;
          break;
        case 2:
          if (leadByte < 0xE0 || leadByte > 0xEF)
            throw new MalformedInputException(count);
          state = TRAIL_BYTE_1;
          break;
        case 3:
          if (leadByte < 0xF0 || leadByte > 0xF4)
            throw new MalformedInputException(count);
          state = TRAIL_BYTE_1;
          break;
        default:
          // too long! Longest valid UTF-8 is 4 bytes (lead + three)
          // or if < 0 we got a trail byte in the lead byte position
          throw new MalformedInputException(count);
        } // switch (length)
        break;

      case TRAIL_BYTE_1:
        if (leadByte == 0xF0 && aByte < 0x90)
          throw new MalformedInputException(count);
        if (leadByte == 0xF4 && aByte > 0x8F)
          throw new MalformedInputException(count);
        if (leadByte == 0xE0 && aByte < 0xA0)
          throw new MalformedInputException(count);
        if (leadByte == 0xED && aByte > 0x9F)
          throw new MalformedInputException(count);
        // falls through to regular trail-byte test!!
      case TRAIL_BYTE:
        if (aByte < 0x80 || aByte > 0xBF)
          throw new MalformedInputException(count);
        if (--length == 0) {
          state = LEAD_BYTE;
        } else {
          state = TRAIL_BYTE;
        }
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                result = decoder.decode(bytes, out, true);
                decoder.flush(out);
                decoder.reset();
            }
            if (result.isMalformed()) {
                throw new MalformedInputException(result.length());
            } else if (result.isUnmappable()) {
                throw new UnmappableCharacterException(result.length());
            }

            return out.position() - offset == 0 ? -1 : out.position() - offset;
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