Github user fhueske commented on a diff in the pull request:
https://github.com/apache/flink/pull/3406#discussion_r104387807
--- Diff: flink-libraries/flink-table/pom.xml ---
@@ -92,7 +92,12 @@ under the License.
</exclusions>
</dependency>
-
+ <dependency>
--- End diff --
Here is what I found out. WTFPL is compatible with AL2
(https://www.apache.org/legal/resolved.html).
Maven Central lists the dependency as BSD licensed
(https://search.maven.org/#artifactdetails%7Corg.reflections%7Creflections%7C0.9.10%7Cjar)
which is also OK.
However, it seems that some of its transitive dependencies are LGPL
licensed which would not work. So maybe we have to exclude those.
Copying a file and relicensing should be OK under WTFPL. However, we should
clearly indicate the origin of the code.
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