/guava/guava/src/com/google/common/hash/ChecksumHashFunction.java
this.checksum = checkNotNull ( checksum ) ;
public String toString() { return toString; } private final class ChecksumHasher extends AbstractByteHasher { private final Checksum checksum; private ChecksumHasher(Checksum checksum) { <extra_id_0> } @Override protected void update(byte b) { checksum.update(b); } @Override