diff --git a/generators/server/templates/src/main/java/package/config/cassandra/CassandraConfiguration.java.ejs b/generators/server/templates/src/main/java/package/config/cassandra/CassandraConfiguration.java.ejs
index 312d5cd9088..0ee92895dd4 100644
--- a/generators/server/templates/src/main/java/package/config/cassandra/CassandraConfiguration.java.ejs
+++ b/generators/server/templates/src/main/java/package/config/cassandra/CassandraConfiguration.java.ejs
@@ -35,6 +35,7 @@ import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
 <%_ } _%>
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.Import;
 import org.springframework.context.annotation.Profile;
 import org.springframework.core.convert.converter.Converter;
 import org.springframework.data.cassandra.core.convert.CassandraCustomConversions;
@@ -51,14 +52,14 @@ import java.util.ArrayList;
 import java.util.Date;
 import java.util.List;
 
-@Configuration<% if (applicationType === 'gateway' && databaseType !== 'cassandra') { %>
-@ConditionalOnProperty("jhipster.gateway.rate-limiting.enabled")<% } %>
+@Configuration
+<%_ if (applicationType === 'gateway' && databaseType !== 'cassandra') { %>
+@ConditionalOnProperty("jhipster.gateway.rate-limiting.enabled")
+<%_ } %>
 @Profile({JHipsterConstants.SPRING_PROFILE_DEVELOPMENT, JHipsterConstants.SPRING_PROFILE_PRODUCTION})
+@Import(CassandraConfiguration.ClusterBuilderCustomizerConfiguration.class)
 public class CassandraConfiguration {
 
-    @Value("${spring.data.cassandra.protocolVersion:V4}")
-    private ProtocolVersion protocolVersion;
-
     @Autowired(required = false)
     MetricRegistry metricRegistry;
 
@@ -81,7 +82,7 @@ public class CassandraConfiguration {
     }
 
     @Bean
-    public CassandraCustomConversions cassandraCustomConversions(Cluster cluster) {
+    public CassandraCustomConversions cassandraCustomConversions(@Value("${spring.data.cassandra.protocolVersion:V4}") ProtocolVersion protocolVersion) {
         List<Converter<?, ?>> converters = new ArrayList<>();
         converters.add(TupleToZonedDateTimeConverter.INSTANCE);
         converters.add(new ZonedDateTimeToTupleConverter(protocolVersion, cluster.getConfiguration().getCodecRegistry()));
@@ -118,22 +119,19 @@ public class CassandraConfiguration {
         }
     }
 
-    @Bean
-    ClusterBuilderCustomizer clusterBuilderCustomizer(CassandraProperties properties) {
-        return builder -> builder
-            .withProtocolVersion(protocolVersion)
-            .withPort(getPort(properties))
-            .withoutJMXReporting()
-            .withoutMetrics();
-    }
-
-    protected int getPort(CassandraProperties properties) {
-        return properties.getPort();
-    }
-
     @Bean(destroyMethod = "close")
-    public Session session(CassandraProperties properties, Cluster cluster) {
+    public Session session(CassandraProperties properties) {
         log.debug("Configuring Cassandra session");
         return StringUtils.hasText(properties.getKeyspaceName()) ? cluster.connect(properties.getKeyspaceName()) : cluster.connect();
     }
+
+    public static class ClusterBuilderCustomizerConfiguration {
+        @Bean
+        ClusterBuilderCustomizer clusterBuilderCustomizer(@Value("${spring.data.cassandra.protocolVersion:V4}") ProtocolVersion protocolVersion) {
+            return builder -> builder
+                .withProtocolVersion(protocolVersion)
+                .withoutJMXReporting()
+                .withoutMetrics();
+        }
+    }
 }
diff --git a/generators/server/templates/src/test/java/package/AbstractCassandraTest.java.ejs b/generators/server/templates/src/test/java/package/AbstractCassandraTest.java.ejs
index 45e2596f4de..f424b6d359f 100644
--- a/generators/server/templates/src/test/java/package/AbstractCassandraTest.java.ejs
+++ b/generators/server/templates/src/test/java/package/AbstractCassandraTest.java.ejs
@@ -27,7 +27,11 @@ import org.apache.thrift.transport.TTransportException;
 import org.cassandraunit.CQLDataLoader;
 import org.cassandraunit.dataset.cql.ClassPathCQLDataSet;
 import org.junit.jupiter.api.BeforeAll;
+import org.springframework.context.ApplicationContextInitializer;
+import org.springframework.context.ConfigurableApplicationContext;
 import org.springframework.test.context.ActiveProfiles;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.support.TestPropertySourceUtils;
 import org.testcontainers.containers.BindMode;
 import org.testcontainers.containers.GenericContainer;
 import org.testcontainers.containers.wait.strategy.Wait;
@@ -48,13 +52,21 @@ import java.util.List;
  * Base class for starting/stopping Cassandra during tests.
  */
 @ActiveProfiles(JHipsterConstants.SPRING_PROFILE_TEST)
+@ContextConfiguration(initializers = AbstractCassandraTest.CassandraPortInitializer.class)
 public class AbstractCassandraTest {
 
     public static final String CASSANDRA_UNIT_KEYSPACE = "cassandra_unit_keyspace";
-    public static GenericContainer CASSANDRA_CONTAINER = null;
+    public static final GenericContainer CASSANDRA_CONTAINER;
     public static final int CASSANDRA_TEST_PORT = 9042;
     private static boolean started = false;
 
+    static {
+        CASSANDRA_CONTAINER =
+            new GenericContainer("<%= DOCKER_CASSANDRA %>")
+                .waitingFor(Wait.forListeningPort().withStartupTimeout(Duration.ofSeconds(30)))
+                .withExposedPorts(CASSANDRA_TEST_PORT);
+    }
+
     @BeforeAll
     public static void startServer() throws TTransportException, ConfigurationException, IOException, URISyntaxException {
         if (!started) {
@@ -75,11 +87,6 @@ public class AbstractCassandraTest {
     }
 
     private static void startTestcontainer() throws TTransportException, IOException {
-        CASSANDRA_CONTAINER =
-            new GenericContainer("<%= DOCKER_CASSANDRA %>")
-                .waitingFor(Wait.forListeningPort().withStartupTimeout(Duration.ofSeconds(30)))
-                .withExposedPorts(CASSANDRA_TEST_PORT);
-
         CASSANDRA_CONTAINER.start();
     }
 
@@ -108,4 +115,13 @@ public class AbstractCassandraTest {
             dataLoader.load(new ClassPathCQLDataSet(cqlDir + fileName, false, false, CASSANDRA_UNIT_KEYSPACE));
         }
     }
+
+    public static class CassandraPortInitializer implements ApplicationContextInitializer<ConfigurableApplicationContext> {
+        @Override
+        public void initialize(ConfigurableApplicationContext applicationContext) {
+            TestPropertySourceUtils.addInlinedPropertiesToEnvironment(applicationContext,
+                "spring.data.cassandra.port=" + AbstractCassandraTest.CASSANDRA_CONTAINER.getMappedPort(AbstractCassandraTest.CASSANDRA_TEST_PORT)
+            );
+        }
+    }
 }
diff --git a/generators/server/templates/src/test/java/package/config/CassandraConfigurationIT.java.ejs b/generators/server/templates/src/test/java/package/config/CassandraConfigurationIT.java.ejs
index 8246dfbc46f..652b34d8396 100644
--- a/generators/server/templates/src/test/java/package/config/CassandraConfigurationIT.java.ejs
+++ b/generators/server/templates/src/test/java/package/config/CassandraConfigurationIT.java.ejs
@@ -18,26 +18,14 @@
 -%>
 package <%= packageName %>.config;
 
-import <%= packageName %>.AbstractCassandraTest;
 import <%= packageName %>.config.cassandra.CassandraConfiguration;
 
 import io.github.jhipster.config.JHipsterConstants;
 
-import org.springframework.boot.autoconfigure.cassandra.CassandraProperties;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.context.annotation.Profile;
 
 @Configuration
 @Profile(JHipsterConstants.SPRING_PROFILE_TEST)
 public class CassandraConfigurationIT extends CassandraConfiguration {
-
-    /**
-     * Override how to get the port to connect to the Cassandra cluster.
-     * <p>
-     * This uses the TestContainers API to get the mapped port in Docker.
-     */
-    @Override
-    protected int getPort(CassandraProperties properties) {
-        return AbstractCassandraTest.CASSANDRA_CONTAINER.getMappedPort(AbstractCassandraTest.CASSANDRA_TEST_PORT);
-    }
 }