question: @ Override public boolean equals ( Object o ) { if ( this == o ) return true ; if ( o == null || getClass ( ) != o . getClass ( ) ) return false ; DeterministicKey other = ( DeterministicKey ) o ; return super . equals ( other ) && Arrays . equals ( this . chainCode , other . chainCode ) && Objects . equal ( this . childNumberPath , other . childNumberPath ) ; }
target:  Verifies equality of all fields but NOT the parent pointer (thus the same key derived in two separate heirarchy objects will equal each other.