OpenIntToDoubleHashMap; OpenIntToFieldHashMap implement Serializable but have no hashCode() and equals() method

[axkr]

org.hipparchus.util.OpenIntToDoubleHashMapand org.hipparchus.util.OpenIntToFieldHashMap define Serializable interface but no hashCode() and equals() method.

See:

• https://github.com/Hipparchus-Math/hipparchus/blob/f1948e10f100a5380c869c76b4f0e8f5f1004b68/hipparchus-core/src/main/java/org/hipparchus/util/OpenIntToFieldHashMap.java#L44
• https://github.com/Hipparchus-Math/hipparchus/blob/f1948e10f100a5380c869c76b4f0e8f5f1004b68/hipparchus-core/src/main/java/org/hipparchus/util/OpenIntToDoubleHashMap.java#L40

There must be an overriden equals() and hashCode() method so they will return true if deserialized instances of the same original object are compared.

[Serrof]

Hi @axkr, Would you be able to create a fix for this? Cheers

[maisonobe]

I will do it for OpenIntToDoubleHashMap, but I guess having OpenIntToFieldHashMap implement Serializable is an error. Field elements are not serializable. I also think more and more than serialization is not really a good thing and should be removed altogether.