Fix CompletableFuture hangs when RetryStrategy/MetricsCollector raise errors#6125
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alextwoods merged 4 commits intomasterfrom May 23, 2025
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joviegas
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May 22, 2025
| } else { | ||
| future.complete(r); | ||
| } | ||
| }).exceptionally(t -> { |
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whenComplete already handles t != null exception , why do we need exceptionally here?
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This is to handle an exception raised in the whenComplete (ie by the metrics collector)- this is called on the new future returned from whenComplete and not on the original future.
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Fix #6008 - Improve error handling in futures in the async pipeline.
Motivation and Context
Errors raised by the RetryStrategy or MetricsCollector in the async request pipeline previously caused the returned future to hang indefinitely because they were never setting a completion state on the returned future. See #6008.
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Testing
Types of changes
Checklist
mvn installsucceedsscripts/new-changescript and following the instructions. Commit the new file created by the script in.changes/next-releasewith your changes.License