Github user zentol commented on a diff in the pull request:
https://github.com/apache/flink/pull/4961#discussion_r149344106
--- Diff: flink-filesystems/flink-s3-fs-hadoop/pom.xml ---
@@ -277,6 +336,7 @@ under the License.
<exclude>META-INF/maven/org.apache.commons/**</exclude>
<exclude>META-INF/maven/org.apache.flink/flink-hadoop-fs/**</exclude>
<exclude>META-INF/maven/org.apache.flink/force-shading/**</exclude>
+
<exclude>core-default.xml</exclude>
--- End diff --
add comment that we're using our own shaded core-default.xml
---