/guava/guava/src/com/google/common/hash/MessageDigestHashFunction.java
this.toString = checkNotNull( algorithmName) ;
this.toString = checkNotNull ( toString ) ;
private final int bytes; private final boolean supportsClone; private final String toString; MessageDigestHashFunction(String algorithmName, String toString) { this.prototype = getMessageDigest(algorithmName); this.bytes = prototype.getDigestLength(); <extra_id_0> this.supportsClone = supportsClone(prototype); } MessageDigestHashFunction(String algorithmName, int bytes, String toString) { this.toString = checkNotNull(toString); this.prototype = getMessageDigest(algorithmName); int maxLength = prototype.getDigestLength();