CAMEL-23907: Fix flaky ThreadsRejectedExecutionTest

[gnodet]

Claude Code on behalf of Guillaume Nodet

Summary

• Replace fixed-timeout assertions (assertMockEndpointsSatisfied, NotifyBuilder.matchesWaitTime(), immediate inflight check) with Awaitility-based polling in testThreadsRejectedAbortNoRedelivery and sibling test methods (testThreadsRejectedAbort, testThreadsRejectedCallerRuns)
• This eliminates timing sensitivity that caused failures on JDK 25 where thread pool scheduling differs from earlier JDK versions
• Added descriptive assertion messages for better failure diagnostics

Test plan

• All 5 test methods in ThreadsRejectedExecutionTest pass
• Verified stability with 5 consecutive runs (25 total executions, 0 failures)

🤖 Generated with Claude Code

[github-actions]

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[github-actions]

🧪 CI tested the following changed modules:

• core/camel-core

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🔬 Scalpel shadow comparison — Scalpel: 23 tested, 0 compile-only — current: 0 all tested

Maveniverse Scalpel detected 23 affected modules (current approach: 0).

⚠️ Modules only in Scalpel (23)

• camel-console
• camel-core
• camel-csimple-joor
• camel-datasonnet
• camel-groovy
• camel-hl7
• camel-javascript
• camel-joor
• camel-jq
• camel-jsonpath
• camel-main
• camel-management
• camel-mvel
• camel-ognl
• camel-platform-http-jolokia
• camel-python
• camel-saxon
• camel-spring-xml
• camel-stax
• camel-xml-io-dsl
• camel-xml-jaxb-dsl
• camel-xml-jaxb-dsl-test-definition
• camel-xml-jaxb-dsl-test-spring

Skip-tests mode would test 23 modules (1 direct + 22 downstream), skip tests for 0 (generated code, meta-modules)

Modules Scalpel would test (23)

• camel-console
• camel-core
• camel-csimple-joor
• camel-datasonnet
• camel-groovy
• camel-hl7
• camel-javascript
• camel-joor
• camel-jq
• camel-jsonpath
• camel-main
• camel-management
• camel-mvel
• camel-ognl
• camel-platform-http-jolokia
• camel-python
• camel-saxon
• camel-spring-xml
• camel-stax
• camel-xml-io-dsl
• camel-xml-jaxb-dsl
• camel-xml-jaxb-dsl-test-definition
• camel-xml-jaxb-dsl-test-spring

ℹ️ Shadow mode — Scalpel observes but does not affect test execution. Learn more

⚠️ Some tests are disabled on GitHub Actions (@DisabledIfSystemProperty(named = "ci.env.name")) and require manual verification:

• core/camel-core: 2 test(s) disabled on GitHub Actions

All tested modules (23 modules)

• Camel :: Console
• Camel :: Core
• Camel :: DataSonnet
• Camel :: Groovy
• Camel :: HL7
• Camel :: JQ
• Camel :: JSon Path
• Camel :: JavaScript
• Camel :: MVEL
• Camel :: Main
• Camel :: Management
• Camel :: OGNL (deprecated)
• Camel :: Platform HTTP :: Jolokia
• Camel :: Python
• Camel :: Saxon
• Camel :: Spring XML
• Camel :: StAX
• Camel :: XML DSL Jaxb :: Test :: Definition
• Camel :: XML DSL Jaxb :: Test :: Spring
• Camel :: XML DSL with camel-xml-io
• Camel :: XML DSL with camel-xml-jaxb
• Camel :: csimple jOOR (deprecated)
• Camel :: jOOR

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