[Chapter 08 - MicroProfile Fault Tolerance 4.1] Updating chapter 08 content for MicroProfile Fault Tolerance 4.1 - #66
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Updated chapter content to reflect changes in MicroProfile Fault Tolerance 4.1, including new sections on exception handling, retry policies, and metrics integration.
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I will take a look. Thanks Tarun! |
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Thanks Tarun. I like that you simplified the code by using MicroProfile Config, which also introduces config-override feature. The other additions are good too. Let's see who else provides feedback. I haven't run the code yet. |
Emily-Jiang
requested changes
Apr 27, 2026
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@jclingan - To run the code you can check this PR, it has the code changes for this chapter. |
Emily-Jiang
reviewed
Jun 11, 2026
…meout Without @asynchronous, @timeout relies on thread interruption which is unreliable for blocking I/O (e.g. JDBC calls). Update the @timeout externalization example to use @asynchronous with CompletionStage return types, add a NOTE admonition calling out the requirement, and strengthen the surrounding prose from "can be combined" to "should always be combined".
…yment service - Restore PaymentResource to non-blocking CompletionStage<Response> pattern; remove .get() call that was blocking the JAX-RS request thread - Wrap paymentService.processPayment() call in try-catch to satisfy the Java compiler's checked-exception requirement for PaymentProcessingException - Introduce PaymentFallbackHandler (FallbackHandler<CompletionStage<String>>) to distinguish BulkheadException from other failures, returning "rejected" vs "failed" status — replaces the unsupported Throwable fallback method param - Set @bulkhead(value=5, waitingTaskQueue=2) so 10 concurrent requests trigger 3 rejections, making the bulkhead demo observable - Tighten @CIRCUITBREAKER thresholds (failureRatio=0.75, requestVolumeThreshold=10) so the 30% failure simulation never trips the circuit during the test - Fix test-payment-bulkhead.sh: correct log path, fix response-body detection strings ("rejected"/"failed"), display background output after wait, and grep temp files (not the non-existent /tmp/bulkhead.log) for result counting - Bump liberty-maven-plugin to 3.12.0
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@jclingan & @Emily-Jiang - I have resolved all the PR feedback; kindly approve and merge. |
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Updated chapter 08 content to reflect changes in MicroProfile. Fault Tolerance 4.1.
Included new sections on
Please refer to this PR for the associated code changes:
#70