Add project-structure module: the same Boot 4.1 app laid out package-by-layer and package-by-feature, with the public surface counted and the javac boundary captured

Co-Authored-By: Claude Sonnet 5.5 <[email protected]> Claude-Session: https://claude.ai/code/session_01HhW8LD8r3EigoBaCGrQZx5 Co-Authored-By: Claude Sonnet 5.5 <[email protected]> Claude-Session: https://claude.ai/code/session_01HhW8LD8r3EigoBaCGrQZx5
2026-10-21 16:43:45 +00:00
parent 008211f2fa
commit ba709737de
41 changed files with 1039 additions and 0 deletions
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+# A @SpringBootApplication class in the default package (no package statement)
+
+source compiled:
+    import org.springframework.boot.autoconfigure.SpringBootApplication;
+    @SpringBootApplication
+    public class DefaultPackageApp {
+    }
+
+
+--- what Spring Boot logged about the default package ---
+WARNING ** : Your ApplicationContext is unlikely to start due to a @ComponentScan of the default package.
+
+--- result ---
+context FAILED to start: BeanDefinitionStoreException / root cause ConflictingBeanDefinitionException: Annotation-specified bean name 'bookController' for bean class [com.ankurm.structure.bylayer.controller.BookController] conflicts with existing, non-compatible bean definition of same name and class [com.ankurm.structure.byfeature.book.BookController]