Stability checkpoint — svc 1.0.51 (J17 API overlays + IT tag-gating)
Validates the full compat matrix surgical-fix wave :
- J17 cells : src/main/java-overlays/java17/com/mirador/customer/AggregationService.java
+ inline page.get(size-1) replacing page.getLast() (J21+ API)
- SB4+J21 IT cell : @Tag("integration") on AbstractIntegrationTest +
failsafe <excludes>**/*ITest.java</excludes> in compat + sb3 profiles
- ApiExceptionHandler.java:61 switch-case _ → ignored (J21 preview-feature fix)
See COMPATIBILITY_MATRIX.md + ADR-0058 for the full wave context.
Post-merge main pipeline #2478103055 confirmed green on 7d87548.