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Is Eclipse Public License 2.0 compatible with Apache License 2.0?

Yes — but the combined work must be released under the more restrictive license.

Eclipse Public License 2.0 is a file-level (or library-level) copyleft license. You can include Eclipse Public License 2.0 files in a Apache License 2.0 project; the Eclipse Public License 2.0 files retain their copyleft obligation (changes must be released), while the project at large can stay Apache License 2.0. Keep file boundaries clear.

About these licenses

LicenseFamilyPatent grant
Eclipse Public License 2.0 (EPL-2.0) weak-copyleft Yes
Apache License 2.0 (Apache-2.0) permissive Yes

Eclipse Public License 2.0: Module-level copyleft used heavily in the Java ecosystem.

Apache License 2.0: Permissive with an explicit patent grant and contribution terms.

What to do next

If you found this page because you're trying to figure out whether shipping a particular dependency is safe, the answer above is a starting point — not a substitute for reading the actual licenses or talking to a lawyer when stakes are high.

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