JDK 17 Migration

Description:

• Migration from Java 8 to Java 17.
• Unit test fixes with build run args and dependency upgrades.
• For Integration Test - Refactored with Apache's CloseableHttpClient which supports all HTTP methods (include PATCH).
• Enhanced instanceOf pattern matching changes.

How to test:

Via Unit and Integration tests.

Changes include:

• Breaking change (a change that is not backward-compatible and/or changes current functionality).

Changes in:

• Common code

Dev Checklist:

• Added Unit Tests, wherever applicable.
• Updated the Readme, if applicable.
• Existing Tests pass
• Verified functionality locally
• Self Reviewed my code for formatting and complex business logic.

Other comments:

• Upgraded 'lombok' & 'jacoco' plugin version
• Integration test: Jersey HttpClient to support PATCH method, uses reflection logic which will not work in JDK 17. Hence replaced with Apache Apache's CloseableHttpClient.

References

• https://www.baeldung.com/java-pattern-matching-instanceof