Github user tillrohrmann commented on a diff in the pull request: https://github.com/apache/flink/pull/4911#discussion_r149098417 --- Diff: flink-core/src/main/java/org/apache/flink/api/common/operators/ResourceSpec.java --- @@ -61,18 +79,17 @@ /** How many state size in mb are used */ private final int stateSizeInMB; + private final Map<String, Resource> extendedResources = new HashMap<>(1); --- End diff -- This violates the serializability of `ResourceSpec` if `Resource` itself is not serializable.
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