diff --git a/generators/spring-boot/cleanup.ts b/generators/spring-boot/cleanup.ts
index 846cdcf7b078..c6be4ab1f5cb 100644
--- a/generators/spring-boot/cleanup.ts
+++ b/generators/spring-boot/cleanup.ts
@@ -179,12 +179,12 @@ export default asWritingTask(function cleanupTask(this, taskParam) {
     }
     if (
       application.databaseTypeSql ||
-      (application as any).cacheProviderRedis ||
+      application.cacheProviderRedis ||
       application.databaseTypeMongodb ||
       application.databaseTypeCassandra ||
-      (application as any).searchEngineElasticsearch ||
+      application.searchEngineElasticsearch ||
       application.databaseTypeCouchbase ||
-      (application as any).searchEngineCouchbase ||
+      application.searchEngineCouchbase ||
       application.databaseTypeNeo4j
     ) {
       // The condition is too complated, delete and recreate.
diff --git a/generators/spring-boot/command.ts b/generators/spring-boot/command.ts
index c57815e64bc7..bd9d1645307b 100644
--- a/generators/spring-boot/command.ts
+++ b/generators/spring-boot/command.ts
@@ -20,10 +20,12 @@ import chalk from 'chalk';
 import type { JHipsterCommandDefinition } from '../../lib/command/index.js';
 import { GENERATOR_JAVA, GENERATOR_LIQUIBASE, GENERATOR_SPRING_DATA_RELATIONAL } from '../generator-list.js';
 import { createBase64Secret, createSecret } from '../base/support/secret.js';
-import { applicationTypes, authenticationTypes } from '../../lib/jhipster/index.js';
+import { applicationTypes, authenticationTypes, databaseTypes, serviceDiscoveryTypes } from '../../lib/jhipster/index.js';
 
 const { OAUTH2, SESSION, JWT } = authenticationTypes;
+const { CONSUL, EUREKA, NO: NO_SERVICE_DISCOVERY } = serviceDiscoveryTypes;
 const { GATEWAY, MICROSERVICE } = applicationTypes;
+const { SQL, NO: NO_DATABASE, MONGODB, COUCHBASE, CASSANDRA, NEO4J } = databaseTypes;
 
 const command = {
   options: {
@@ -73,12 +75,12 @@ const command = {
         when: () => ['gateway', 'microservice'].includes(gen.jhipsterConfigWithDefaults.applicationType),
         type: 'list',
         message: 'Which service discovery server do you want to use?',
-        default: 'consul',
+        default: CONSUL,
       }),
       choices: [
-        { value: 'consul', name: 'Consul (recommended)' },
-        { value: 'eureka', name: 'JHipster Registry (legacy, uses Eureka, provides Spring Cloud Config support)' },
-        { value: 'no', name: 'No service discovery' },
+        { value: CONSUL, name: 'Consul (recommended)' },
+        { value: EUREKA, name: 'JHipster Registry (legacy, uses Eureka, provides Spring Cloud Config support)' },
+        { value: NO_SERVICE_DISCOVERY, name: 'No service discovery' },
       ],
       scope: 'storage',
     },
@@ -98,9 +100,9 @@ const command = {
         default: () => gen.jhipsterConfigWithDefaults.authenticationType,
       }),
       choices: [
-        { value: 'jwt', name: 'JWT authentication (stateless, with a token)' },
-        { value: 'oauth2', name: 'OAuth 2.0 / OIDC Authentication (stateful, works with Keycloak and Okta)' },
-        { value: 'session', name: 'HTTP Session Authentication (stateful, default Spring Security mechanism)' },
+        { value: JWT, name: 'JWT authentication (stateless, with a token)' },
+        { value: OAUTH2, name: 'OAuth 2.0 / OIDC Authentication (stateful, works with Keycloak and Okta)' },
+        { value: SESSION, name: 'HTTP Session Authentication (stateful, default Spring Security mechanism)' },
       ],
       configure: gen => {
         const { jwtSecretKey, rememberMeKey, authenticationType, applicationType } = gen.jhipsterConfigWithDefaults;
@@ -177,7 +179,7 @@ const command = {
         type: String,
         hide: true,
       },
-      choices: ['sql', 'mongodb', 'couchbase', 'cassandra', 'neo4j', 'no'],
+      choices: [SQL, MONGODB, COUCHBASE, CASSANDRA, NEO4J, NO_DATABASE],
       scope: 'storage',
     },
   },
diff --git a/generators/spring-boot/generator.ts b/generators/spring-boot/generator.ts
index 4334d43537e7..e22a2a5a61c3 100644
--- a/generators/spring-boot/generator.ts
+++ b/generators/spring-boot/generator.ts
@@ -430,14 +430,13 @@ public void set${javaBeanCase(propertyName)}(${propertyType} ${propertyName}) {
         }
       },
       prepareFilters({ application, entity }) {
-        (entity as any).entityJavaFilterableProperties = [
-          ...entity.fields.filter(field => field.filterableField),
-          ...entity.relationships.filter(rel => !application.reactive || (rel.persistableRelationship && !rel.collection)),
-        ];
-        (entity as any).entityJavaCustomFilters = sortedUniqBy(
-          entity.fields.map(field => field.propertyJavaCustomFilter).filter(Boolean),
-          'type',
-        );
+        mutateData(entity, {
+          entityJavaFilterableProperties: [
+            ...entity.fields.filter(field => field.filterableField),
+            ...entity.relationships.filter(rel => !application.reactive || (rel.persistableRelationship && !rel.collection)),
+          ],
+          entityJavaCustomFilters: sortedUniqBy(entity.fields.map(field => field.propertyJavaCustomFilter).filter(Boolean), 'type'),
+        });
       },
     });
   }
@@ -487,9 +486,14 @@ public void set${javaBeanCase(propertyName)}(${propertyType} ${propertyName}) {
   get postWriting() {
     return this.asPostWritingTaskGroup({
       addJHipsterBomDependencies({ application, source }) {
-        const { applicationTypeGateway, applicationTypeMicroservice, javaDependencies, jhipsterDependenciesVersion, messageBrokerAny } =
-          application;
-        const { serviceDiscoveryAny } = application as any;
+        const {
+          applicationTypeGateway,
+          applicationTypeMicroservice,
+          javaDependencies,
+          jhipsterDependenciesVersion,
+          messageBrokerAny,
+          serviceDiscoveryAny,
+        } = application;
 
         source.addJavaDefinitions?.(
           {
diff --git a/generators/spring-boot/prompts.ts b/generators/spring-boot/prompts.ts
index 26fc96f92477..a7d80fa3e03a 100644
--- a/generators/spring-boot/prompts.ts
+++ b/generators/spring-boot/prompts.ts
@@ -104,7 +104,7 @@ export async function askForServerSideOpts(this: CoreGenerator, { control }) {
             });
           }
           opts.push({
-            value: 'couchbase',
+            value: COUCHBASE,
             name: '[BETA] Couchbase',
           });
           opts.push({