code: public static boolean isNonCharacter(int ch) 
      {
          if ((ch & NON_CHARACTER_SUFFIX_MIN_3_0_) == 
                                              NON_CHARACTER_SUFFIX_MIN_3_0_) {
              return true;
          }
          
          return ch >= NON_CHARACTER_MIN_3_1_ && ch <=  NON_CHARACTER_MAX_3_1_;
      }
docs: Determines if codepoint is a non character
  @param ch codepoint
  @return true if codepoint is a non character false otherwise