It depends.
At least one of these (`Elastic License 2.0`) is a source-available license, not OSI-approved open source. Combination terms depend on the specific clauses of the source-available license — review the upstream's FAQ and consult a lawyer before redistributing or running as a service.
| License | Family | Patent grant |
|---|---|---|
| Elastic License 2.0 (Elastic-2.0) | source-available | No (implicit at most) |
| Eclipse Public License 2.0 (EPL-2.0) | weak-copyleft | Yes |
Elastic License 2.0: Source-available with restrictions on resale-as-a-service.
Eclipse Public License 2.0: Module-level copyleft used heavily in the Java ecosystem.
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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