This repository is the example code used in my blog article about the Type-Safe Builder pattern.

It's organized into Gradle submodules, each corresponding to a different part of the blog post. They are numbered in the order they appear in the article:

• 01-classic-user-builder shows an example of a "classic" Builder for the User class (the version with all required properties).
• 02-type-safe-agreement-version-builder shows an example of a Type-Safe Builder for the AgreementVersion class.
• 03-type-safe-user-builder-optional-props shows an example of a Type-Safe Builder for a class with optional properties (the User class with the username and displayName properties being optional).
• 04-jilt-builders re-implements all of the previous examples, but this time using the Jilt library instead of writing the Builders by hand.

All of this code is in the Public Domain.