asmhatre/spring-boot-demo
1
0
Fork 0
Code Activity

Three new article modules: configuration binding, profiles and config data, Spring AOP

Browse Source 
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
This commit is contained in:
Ankur Mhatre
2026-09-08 16:36:17 +00:00
parent 958b401f0f
commit 86246dc860
107 changed files with 5075 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

22
configuration-properties/docs/output/01-relaxed-matrix.txt Normal file
View File

@@ -0,0 +1,22 @@
== relaxed binding matrix ==
canonical property: demo.relaxed.api-key
SPELLING SOURCE BINDER ${} plain ${} boot
--------------------------------------------------------------
demo.relaxed.api-key map bound bound bound
demo.relaxed.apiKey map bound MISS bound
demo.relaxed.api_key map bound MISS bound
demo.relaxed.APIKEY map bound MISS bound
DEMO.RELAXED.API-KEY map bound MISS bound
demo.relaxed.apikey map bound MISS bound
demo.relaxed.api.key map MISS MISS MISS
DEMO_RELAXED_API_KEY env bound bound bound
DEMO_RELAXED_APIKEY env bound MISS bound
demo_relaxed_api_key env bound bound bound
DEMO.RELAXED.API-KEY env bound bound bound
BINDER = what @ConfigurationProperties sees (Binder)
${} plain = placeholder resolution against a bare StandardEnvironment
${} boot = the same, after ConfigurationPropertySources.attach(env),
which Spring Boot performs on every environment it prepares
bound = the value arrived; MISS = the property was not found