Summary

This csr proposes addition of methods allowing to retrieve the creation timestamp as a java.time.Instant.

Problem

In the current implementation the creation timestamp is a java.util.Date which is mutable. java.util.Date is also rarely used with preference given to java.time objects. This introduces certain friction.

Solution

Addition of a method which allows retrieval of java.time.Instant type timestamp in addition to the java.util.Date. By default this is based on existing java.util.Date functionality implemented by providers so no compatibility issues should araise.

Specification

In addition to existing java.util.Date methods, the java.time.Instant methods are added.

In KeyStore.java: getCreationDate method gets a similar java.time.Instant method getCreationTimestamp.

In KeyStoreSpi: engineGetCreationTimestamp is a non-abstract method by default utilising exiting java.util.Date engineGetCreationDate method to retrieve java.time.Instant. This allows the use of the new timestamp method in any provider even if no engineGetCreationTimestamp implementation exist.