Breaking Change: Update to JDK21

[joaquimvila]

PR Details

Upgrade this library to compile for JDK21. As this is a breaking change, the major version should be updated to 2.0.0

Motivation and Context

JDK21 is the latest LTS version of Java. This library is updated to support it.

Implementation

Update Maven configuration of the library to compile for JDK21.

Related Feature

#33

How Has This Been Tested

• Library test suite has been executed successfully

Types of changes

• Docs change / refactoring / dependency upgrade
• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• New release version
• Breaking change (fix or feature that would cause existing functionality to change)

Attachments

None relevant.

Checklist

• I have read the CONTRIBUTING document
• My code follows the code style of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• There are component tests for new/changed code (or a good explanation why this was not possible) and all of them passed. I have also added tests to cover my changes
• All CI builders have indicated success (Give them the needed time to notice the pull request)
• The Pull request title has the type of change ended with a slash (bugfix/feature/...), Jira issue numbers separated by spaces (if any), a space, and then a short, but descriptive summary
• Commit messages are well formed: A note about Git commit messages
• New public packages, classes, and methods are documented. (Strongly consider documenting private classes and methods)
• A new branch needs to be created from master to evolve previous versions
• Increase version in pom.xml following Semantic Versioning

[gmartinez3werfen]

Looks good to me.

[davidberruezo]

I approve this change