fix: add clarifying comment about done callback and consuming order

[kabir]

Description

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Fixes #<issue_number_goes_here> 🦕

[gemini-code-assist]

Summary of Changes

Hello @kabir, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request improves the readability and maintainability of the DefaultRequestHandler by adding crucial inline documentation. The new comments highlight a specific dependency in the execution flow, ensuring future developers understand why the done callback must be registered before event consumption begins to guarantee proper error handling.

Highlights

• Code Clarity: Added clarifying comments in DefaultRequestHandler.java to explain the critical ordering requirement for adding a done callback to producerRunnable before initiating event consumption. This ensures that any errors thrown by the producer are correctly picked up by the consumer.

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[gemini-code-assist]

Code Review

This pull request adds comments to clarify the order of operations between adding a doneCallback to a producer and starting a consumer. The comments are helpful, but the API design could be improved to prevent potential race conditions by construction.

[gemini-code-assist]

The comment clarifies the order of operations, but the API could be refactored to enforce this order, preventing potential race conditions. Consider modifying ResultAggregator.consumeAndBreakOnInterrupt to accept the producerRunnable as a parameter to encapsulate the logic of adding the callback before consumption.

[gemini-code-assist]

Similar to the previous comment, consider refactoring ResultAggregator.consumeAndEmit to accept the producerRunnable to prevent potential race conditions by design.