spring-boot: migrate neo4j to Spring Boot 4 (#31852)

Author: mshima

generators/liquibase/generator.ts

@@ -107,6 +107,12 @@ export default class LiquibaseGenerator<
         // Generate h2 properties at master.xml for blueprints that uses h2 for tests or others purposes.
         application.liquibaseAddH2Properties ??= application.devDatabaseTypeH2Any;
       },
+      liquibaseNeo4j({ application }) {
+        // TODO drop hardcoded version
+        if (application.databaseTypeNeo4j && application.javaManagedProperties['liquibase.version'] === '5.0.1') {
+          application.javaDependencies['liquibase-neo4j'] = '5.0.0';
+        }
+      },
       checkDatabaseCompatibility({ application }) {
         if (!application.databaseTypeSql && !application.databaseTypeNeo4j) {
           throw new Error(`Database type ${application.databaseType} is not supported`);
@@ -488,16 +494,16 @@ export default class LiquibaseGenerator<
           });
         }
 
-        if (relationalApplication.databaseTypeNeo4j) {
-          if (relationalApplication.backendTypeSpringBoot) {
+        if (application.databaseTypeNeo4j) {
+          if (application.backendTypeSpringBoot && !application.springBoot4) {
             source.addMavenDependency?.([{ groupId: 'org.springframework', artifactId: 'spring-jdbc' }]);
           }
           source.addMavenDependency?.([
             {
               groupId: 'org.liquibase.ext',
               artifactId: 'liquibase-neo4j',
               // eslint-disable-next-line no-template-curly-in-string
-              version: '${liquibase.version}',
+              version: application.javaDependencies['liquibase-neo4j'] ?? '${liquibase.version}',
               // Exclude current neo4j driver and use the one provided by spring-data
               // See: https://github.com/jhipster/generator-jhipster/pull/24241
               additionalContent: `
@@ -548,6 +554,13 @@ export default class LiquibaseGenerator<
             { gradleFile: 'gradle/liquibase.gradle' },
           );
         }
+        if (application.databaseTypeNeo4j && application.javaDependencies['liquibase-neo4j']) {
+          source.addGradleDependencyCatalogLibrary!({
+            libraryName: 'liquibase-neo4j',
+            module: 'org.liquibase.ext:liquibase-neo4j',
+            version: application.javaDependencies['liquibase-neo4j'],
+          });
+        }
       },
       nativeHints({ source, application }) {
         if (!application.graalvmSupport) return;

generators/liquibase/templates/gradle/liquibase.gradle.ejs

@@ -33,7 +33,7 @@ dependencies {
 <%_ } else if (databaseTypeNeo4j) { _%>
   // Exclude current neo4j driver and use the one provided by spring-data
   // See: https://github.com/jhipster/generator-jhipster/pull/24241
-  implementation ("org.liquibase.ext:liquibase-neo4j:${dependencyManagement.importedProperties['liquibase.version']}") {
+  implementation (<%- javaDependencies['liquibase-neo4j'] ? 'libs.liquibase.neo4j' : '"org.liquibase.ext:liquibase-neo4j:${dependencyManagement.importedProperties[\'liquibase.version\']}"' %>) {
     exclude group: "org.neo4j.driver", module: "neo4j-java-driver"
     exclude group: "org.slf4j", module: "*"
   }

generators/spring-boot/generators/bootstrap/generator.ts

@@ -35,8 +35,7 @@ export default class BootstrapGenerator extends SpringBootApplicationGenerator {
         applicationDefaults({
           springBoot4: data =>
             Boolean(
-              data.databaseTypeSql &&
-              !data.reactive &&
+              ((data.databaseTypeSql && !data.reactive) || data.databaseTypeNeo4j) &&
               !data.cacheProviderInfinispan &&
               !data.cacheProviderHazelcast &&
               !data.searchEngineElasticsearch,