yew1eb opened a new pull request, #3840:
URL: https://github.com/apache/celeborn/pull/3840
### What changes were proposed in this pull request?
Remove the redundant `synchronized` block around the first
`endpoints.get(endpointName)` read in `Dispatcher.postMessage`.
### Why are the changes needed?
`endpoints` is a `ConcurrentHashMap`, so the read is already thread-safe.
### Does this PR resolve a correctness bug?
<!-- Check if yes. The `correctness` label will be added/removed
automatically. -->
- [ ] Yes
### Does this PR introduce _any_ user-facing change?
<!-- Check if yes. -->
- [ ] Yes
### How was this patch tested?
Existing UTs.
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