String (Object key, Object val) { final String k, v; final int klen, vlen; final char[] chars = new char[(klen = (k = objectToString(key)).length()) + (vlen = (v = objectToString(val)).length()) + 1]; k.getChars(0, klen, chars, 0); chars[klen] = '='; v.getChars(0, vlen, chars, klen + 1); return new String(chars); }