Upgrade to Spring Boot 4.0.3, Java 25, Gradle 9.3.1 and modernize codebase#114
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dcaron wants to merge 2 commits intocloudfoundry-samples:masterfrom
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Upgrade to Spring Boot 4.0.3, Java 25, Gradle 9.3.1 and modernize codebase#114dcaron wants to merge 2 commits intocloudfoundry-samples:masterfrom
dcaron wants to merge 2 commits intocloudfoundry-samples:masterfrom
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…ebase Backend / build: - Upgrade Spring Boot 3.1.5 → 4.0.3 and Java CFEnv 3.1.2 → 4.0.0 - Upgrade Java 17 → 25 and Gradle 7.6.2 → 9.3.1 - Remove io.spring.dependency-management plugin (Spring Boot 4 Gradle plugin handles the BOM natively) - Update Spring Boot 4 auto-configuration class names in SpringApplicationContextInitializer (boot.data.*, boot.jdbc.*, boot.mongodb.*) - Switch logger from Apache Commons Logging to SLF4J - Replace Collections.singletonList/Map with List.of/Map.of - Replace deprecated @GenericGenerator + @GeneratedValue with @uuidgenerator (Hibernate 6 native API; same UUID behaviour) - Fix Hibernate dialects: MySQL55Dialect → MySQLDialect, ProgressDialect → PostgreSQLDialect - Fix MySQL JDBC driver class: com.mysql.jdbc.Driver → com.mysql.cj.jdbc.Driver - Replace Jackson2ResourceReader (removed in Spring Data 3) with direct ObjectMapper.readValue in AlbumRepositoryPopulator - Replace Jackson2JsonRedisSerializer (removed) with a custom RedisSerializer backed by Jackson 3 (tools.jackson) in RedisConfig - Migrate tests from JUnit 4 (@RunWith) to JUnit 5; add useJUnitPlatform() - Replace @RequestMapping(method=RequestMethod.*) with @GetMapping, @PostMapping, @PutMapping, @DeleteMapping in AlbumController - Replace manual convertIterableToList() with StreamSupport.stream().toList() - Update manifest.yml: add java_buildpack_offline, bump JRE to 25.+ Frontend (WebJars): - AngularJS 1.2.16 → 1.8.3 (final 1.x release) - Bootstrap 3.1.1 → 3.4.1 (final Bootstrap 3 patch) - jQuery 2.1.0 → 3.7.1 (security update) - angular-ui-bootstrap 0.10.0 → 0.14.3 (final 0.x; $modal API unchanged) - angular-ui 0.4.0-2 → 0.4.0-3 Tested on Cloud Foundry (TAS) with PostgreSQL, MySQL, and Redis backends. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- Update Java requirement 17 → 25 - Add tech stack version table (Java 25, Spring Boot 4.0.3, Gradle 9.3.1, Java CFEnv 4.0.0) - Fix all http:// links to https:// and update stale Spring Boot doc URLs - Update Oracle driver instructions: compile → implementation (Gradle modern syntax) - Update "Alternate Java versions" section to reference VERSION_25 - Minor wording fixes (its, H2 in-memory, cloudfoundry.org URL) Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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Summary
This PR brings the app up to the current latest stack while preserving its core purpose: demoing the same Spring Boot application on multiple database backends (H2, MySQL, PostgreSQL, MongoDB, Redis) on Cloud Foundry.
Backend / Build
io.spring.dependency-managementplugin — Spring Boot 4's Gradle plugin manages the BOM nativelySpringApplicationContextInitializer(boot.data.*,boot.jdbc.*,boot.mongodb.*)Collections.singletonList/MapwithList.of/Map.of@GenericGenerator+@GeneratedValuewith@UuidGenerator(Hibernate 6 native; same UUID behaviour)MySQL55Dialect→MySQLDialect,ProgressDialect(broken) →PostgreSQLDialectcom.mysql.jdbc.Driver→com.mysql.cj.jdbc.DriverJackson2ResourceReader(removed in Spring Data 3) with directObjectMapper.readValueinAlbumRepositoryPopulatorJackson2JsonRedisSerializer(removed) with a customRedisSerializerbacked by Jackson 3 (tools.jackson) inRedisConfig@RunWith) to JUnit 5; adduseJUnitPlatform()@RequestMapping(method=RequestMethod.*)with@GetMapping,@PostMapping,@PutMapping,@DeleteMappingconvertIterableToList()withStreamSupport.stream().toList()manifest.yml: explicitjava_buildpack_offline, bump JRE to25.+Frontend (WebJars)
$modalAPI unchanged)AngularJS is kept at 1.x and Bootstrap at 3.x to avoid breaking the existing templates and
$modal-based album form.Test plan
./gradlew clean testpasses (JUnit 5, H2 in-memory)cf push+ PostgreSQL service bound → 29 albums loaded, CRUD works, health UPcf push+ MySQL service bound → 29 albums loaded, health reports MySQL UPcf push+ Redis service bound → 29 albums loaded, health reports redis UPTested on TAS (Tanzu Application Service) with
java_buildpack_offline v4.86.0and OpenJDK JRE 25.0.1.🤖 Generated with Claude Code