curcur commented on a change in pull request #16531:
URL: https://github.com/apache/flink/pull/16531#discussion_r673733146
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File path:
flink-runtime/src/main/java/org/apache/flink/runtime/taskmanager/RuntimeEnvironment.java
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@@ -92,6 +94,10 @@
private final Task containingTask;
+ private MailboxExecutor mainMailboxExecutor;
Review comment:
I mark the `mainMailboxExecutor ` and `asyncOperationsThreadPool`
@Nullable in RuntimeEnvironment.
In `MockEnvironment`, both mailboxExecutor and asycnThreadPool are
initialized in the constructor, and I marked the parameter of the set method as
not nullable. So I did not set `mainMailboxExecutor ` and
`asyncOperationsThreadPool` as @Nullable in MockEnvironment, because no way
`mainMailboxExecutor ` and `asyncOperationsThreadPool` can be null in
`MockEnvironment`.
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