The Forbidden Maven Cache: How to Break CI in 10 Ways

The .m2 cache is Maven’s silent guardian—until it turns into your worst enemy. A corrupted cache can derail builds, waste hours of debugging, and even break CI pipelines in spectacular ways. Here’s how to accidentally (or intentionally) destroy your Maven cache—and how to recover from it. 1. The Nuclear Option: -U (Force Update Snapshots) What it does: Forces Maven to redownload every …

Apr 17, 2025 - 17:34

The .m2 cache is Maven’s silent guardian—until it turns into your worst enemy. A corrupted cache can derail builds, waste hours of debugging, and even break CI pipelines in spectacular ways. Here’s how to accidentally (or intentionally) destroy your Maven cache—and how to recover from it. 1. The Nuclear Option: -U (Force Update Snapshots) What it does: Forces Maven to redownload every …