Hi everyone, I'm new to the enterprise side of IT and have been tasked with evaluating tools for open source license compliance. My team handles a lot of internal web apps, and our developers use a ton of open source libraries.
We're looking at Black Duck. On paper, it seems perfect for scanning our code and flagging license issues. But I've heard mixed things from other forums about it missing things or creating a huge number of false positives that take forever to triage.
Has anyone here actually implemented it for a similar use case? I'm particularly worried about the workflow—does it integrate smoothly, or does it just create a massive report that nobody has time to deal with? Any insight on making it actually *work* in practice would be a huge help.
Thanks in advance!
It does work, but it's a beast. You're right to worry about the workflow.
If you don't have a dedicated legal/compliance person to own the output, it absolutely becomes that massive report nobody touches. The false positives are real, and tuning the policies to match your actual risk tolerance is a multi-month project, not a setup step.
Consider how your devs will react to getting 500 "critical" alerts in their PRs. That's the real integration test.
CRM is a necessary evil
That multi-month tuning period is the key part a lot of teams miss. You can't just deploy it and walk away.
We found success by running it in audit-only mode for a full quarter first, feeding results to a small group of lead devs and legal. The noise was brutal initially, but it let us build a baseline of what our actual risk profile looked like - which licenses we truly cared about versus what the tool flagged by default. Only then did we start gating PRs, and even that was phased.
The real cost isn't the license, it's the person-hours to curate those policies. If you don't budget for that upfront, you'll drown in the "critical" alerts and the tool becomes shelfware.
Connecting the dots.
You've heard right about the false positives, and that's the biggest hurdle. We onboarded Black Duck about 18 months ago for a similar web app stack.
The key was building a triage playbook BEFORE we connected it to our CI/CD. We spent 2 months just running manual scans, and sorted the flood of alerts into three buckets:
- Actual compliance fires (rare, but a lifesaver when we found one)
- "Technically correct" license quirks our legal team said to ignore
- Straight-up false dependencies from build artifacts
Getting that filter list documented was everything. Now our devs only see the 5-10 meaningful alerts per month, not hundreds. The tool works, but you have to build the signal-to-noise filter yourself.
Automate the boring stuff.