code: private Item newFloat(final float value) {
          Item result = get(key.set(FLOAT, value));
          if (result == null) {
              pool.putByte(FLOAT).putInt(Float.floatToIntBits(value));
              result = new Item(poolIndex++, key);
              put(result);
          }
          return result;
      }
docs: Adds a float to the constant pool of the class being build. Does nothing if the constant pool already contains a
  similar item.
  
  @param value the float value.
  @return a new or already existing float item.