[GitHub] [kafka] mimaison commented on a change in pull request #9597: KAFKA-10720: Document prohibition on header mutation by SMTs

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mimaison commented on a change in pull request #9597:
URL: https://github.com/apache/kafka/pull/9597#discussion_r531168400



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File path: connect/api/src/main/java/org/apache/kafka/connect/transforms/Transformation.java
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@@ -33,6 +33,11 @@
      * Apply transformation to the {@code record} and return another record object (which may be {@code record} itself) or {@code null},
      * corresponding to a map or filter operation respectively.
      *
+     * A transformation must not mutate objects reachable from the given {@code record}
+     * (including, but not limited to, {@link org.apache.kafka.connect.header.Headers},

Review comment:
       Should we change `{@link org.apache.kafka.connect.header.Headers}` to `{@link org.apache.kafka.connect.header.Headers Headers}` ?




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