code: public EqualsBuilder append(Object objectFieldValue, Object otherFieldValue) {
  		if (equals && !same) {
  			delegate.append(objectFieldValue, otherFieldValue);
  		}
  		return this;
  	}
docs: Test if two Objects are equal using their equals method.
  
  @param objectFieldValue
  the value of a field of the object
  @param otherFieldValue
  the value of a field of the other object
  @return used to chain calls