How does Java HashMap store entries internally

Question

Say you have a key class (KeyClass) with overridden equals, hashCode and clone methods. Assume that it has 2 primitive fields, a String (name) and an int (id).

Now y

Answer 1

If you change the entry but not the hashCode, you are safe. For this reason it is considered best practice to make all fields in the hashCode, equals and compareTo, both final and immutable.