Ankur Mhatre
86246dc860
configuration-properties/ @ConfigurationProperties vs @Value on Spring Boot 4.1.1. The relaxed-binding matrix is generated by binding each spelling rather than transcribed, and re-checked against real processes -- the in-process probe was wrong twice before it was right. Records the three findings that came out of it: @Value does get relaxed resolution inside Spring Boot (Boot attaches ConfigurationPropertySources), the configuration processor silently stops generating metadata on JDK 23+ when declared as a plain dependency, and @Valid is not what makes nested constraints run. profiles-and-config/ Precedence, profiles, spring.config.import and config trees. /precedence reports every source holding a property in rank order with file and line, which turns "my profile file had no effect" into a two-line answer. Also pins the counterintuitive one: an imported file outranks the file that imported it. spring-aop/ Designators, proxy types, and aspects that do not fire. One advice per supported designator so the reference table is generated from real matches; all fourteen unsupported designators fed to the parser. Two corrections to the reference documentation: unsupported designators throw UnsupportedPointcutPrimitiveException (extends RuntimeException, not IllegalArgumentException), and spring-boot-starter-aop was renamed to spring-boot-starter-aspectj in Boot 4. 19 contract tests across the three modules, 15 captured transcripts, all regenerated by scripts/run-all.sh. Verified on Spring Boot 4.1.1, Spring Framework 7.0.9, JDK 25.0.4.1. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01Gip4srpzMwjgoba6uEfbr5
29 lines
1.4 KiB
Bash
Executable File
29 lines
1.4 KiB
Bash
Executable File
#!/usr/bin/env bash
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# The broken-aspect gallery: six aspects that do not fire, and why.
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set -euo pipefail
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set +m
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cd "$(dirname "$0")/.."
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source scripts/env.sh
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{
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echo "== aspects that do not fire =="
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echo
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start_app > /dev/null
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curl -s "http://127.0.0.1:${APP_PORT}/aop/broken" | python3 -m json.tool
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echo
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echo "Reading it:"
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echo
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echo " 1 @Aspect without @Component - the class is never instantiated, so the pointcut"
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echo " is never registered. No warning is produced."
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echo " 2 pointcut typo - 'com.ankurm.aop.services' (plural) parses fine and"
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echo " matches nothing. An empty match set is not an error."
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echo " 3 private method - cannot be overridden, so cannot be intercepted."
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echo " 4 final method - CGLIB subclasses; a final method is inherited, not"
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echo " overridden. Note beanIsProxied is still true."
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echo " 5 self-invocation - innerAdvisedWhenCalledFromOuter is false and"
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echo " innerAdvisedWhenCalledDirectly is true. Same method,"
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echo " same advice: only the call path differs."
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echo " 6 created with new - no container, no proxy, no advice."
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stop_app
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} > docs/output/03-broken-gallery.txt 2>&1
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cat docs/output/03-broken-gallery.txt
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