Github user zentol commented on a diff in the pull request:
https://github.com/apache/flink/pull/2939#discussion_r91722459
--- Diff:
flink-tests/src/test/java/org/apache/flink/test/classloading/jar/CheckpointedStreamingProgram.java
---
@@ -57,7 +59,7 @@ public static void main(String[] args) throws Exception {
// with Checkpoining
- public static class SimpleStringGenerator implements
SourceFunction<String>, Checkpointed<Integer> {
--- End diff --
I understand why you did not replace ´Checkpointed` with a different
interface, but this technically changes the test. If a function can still
implement these interfaces without doing anything within snapshot/restore, then
we should cover this with tests.
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