public static BitChromosome of(final BitSet bits, final int length) {
		return of(bits, length, DEFAULT_PROBABILITY);
	}
Create a new {@code BitChromosome} with the given parameters. The
{@link #oneProbability()} of the chromosome is set to {@code 0.5}.

@param length length of the BitChromosome.
@param bits the bit-set which initializes the chromosome
@return a new {@code BitChromosome} with the given parameter
@throws NegativeArraySizeException if the {@code length} is smaller
        than one.
@throws NullPointerException if the {@code bitSet} is
        {@code null}.
jenetics/src/main/java/io/jenetics/BitChromosome.java