title: Apache Commons equals/hashCode builder
body: <p>I'm curious to know, what people here think about using 
  <code>org.apache.commons.lang.builder</code> <code>EqualsBuilder</code>/<code>HashCodeBuilder</code>
  for implementing the <code>equals</code>/<code>hashCode</code>? Would it be a better practice than writing your own? Does it play well with Hibernate? What's your opinion?</p>