ddd4j BOM and Maven Governance

Overview

parent owns the build, dependencies owns third-party versions, BOM owns ddd4j consumer coordinates. The three have distinct responsibilities. Adapter-project BOMs own only their own ecosystem versions.

When to Use

• Deciding whether a change belongs in ddd4j-parent, ddd4j-dependencies, or the ddd4j-bom.
• Adding a new module or property and keeping versions out of concrete module POMs.
• Migrating or checking the Maven model: POM 4.0 <modules> vs POM 4.1 <subprojects>, Maven 3 vs Maven 4.
• Diagnosing version conflicts caused by BOM import order or property leakage.
• Verifying that a published line is actually consumable from a clean local repository.
• Aligning dependency properties across the 1.0.x, 2.0.x, and 3.0.x lines.

When NOT to Use

Do not use this skill when: