diff --git a/pom.xml b/pom.xml
index e301c163663a22617bc906f8a17188c455b22219..04f57152090fc10b69de0cbcc6b6830b13547052 100644
--- a/pom.xml
+++ b/pom.xml
@@ -31,7 +31,7 @@
 	<parent>
 		<groupId>de.ozgcloud.common</groupId>
 		<artifactId>ozgcloud-common-parent</artifactId>
-		<version>4.3.2</version>
+		<version>4.6.0</version>
 		<relativePath/>
 	</parent>
 
@@ -41,11 +41,11 @@
 
 	<name>OzgCloud Operator Elster-Transfer</name>
 	<description>OzgCloud Operator Elster-Transfer</description>
+	<inceptionYear>2024</inceptionYear>
 
 
 	<properties>
-		<operator-sdk.version>5.4.1</operator-sdk.version>
-		<spring-security-core.version>6.3.3</spring-security-core.version>
+		<operator-sdk.version>5.6.0</operator-sdk.version>
 		<mustache.version>0.9.14</mustache.version>
 		<snakeyaml.version>2.0</snakeyaml.version>
 		
@@ -72,7 +72,6 @@
          <dependency>
 			<groupId>org.springframework.security</groupId>
 			<artifactId>spring-security-core</artifactId>
-			<version>${spring-security-core.version}</version>
 		</dependency>
 		<!-- tools -->
 		<dependency>
@@ -104,34 +103,6 @@
 		</dependency>
 	</dependencies>
 
-
-	<build>
-		<pluginManagement>
-			<plugins>
-				<plugin>
-					<groupId>com.mycila</groupId>
-					<artifactId>license-maven-plugin</artifactId>
-					<configuration>
-						<mapping>
-							<ts>SLASHSTAR_STYLE</ts>
-							<config>SCRIPT_STYLE</config>
-						</mapping>
-						<licenseSets>
-							<licenseSet>
-								<header>license/eupl_v1_2_de/header.txt</header>
-								<excludes>
-									<exclude>**/README</exclude>
-									<exclude>src/test/resources/**</exclude>
-									<exclude>src/main/resources/**</exclude>
-								</excludes>
-							</licenseSet>
-						</licenseSets>
-					</configuration>
-				</plugin>
-			</plugins>
-		</pluginManagement>
-	</build>
-
 	<distributionManagement>
 		<repository>
 			<id>ozg-nexus</id>
diff --git a/src/main/java/de/ozgcloud/operator/elstertransfer/user/OzgCloudElsterTransferConfigMapUserList.java b/src/main/java/de/ozgcloud/operator/elstertransfer/user/OzgCloudElsterTransferConfigMapUserList.java
index 14f918490454fcfaa05edfc627de2b4b6c0af527..01df63b7c88a8dcffa19bf58c21edd5c9154ca48 100644
--- a/src/main/java/de/ozgcloud/operator/elstertransfer/user/OzgCloudElsterTransferConfigMapUserList.java
+++ b/src/main/java/de/ozgcloud/operator/elstertransfer/user/OzgCloudElsterTransferConfigMapUserList.java
@@ -32,7 +32,13 @@ import lombok.NoArgsConstructor;
 
 @NoArgsConstructor
 @Builder
-public class OzgCloudElsterTransferConfigMapUserList {
+class OzgCloudElsterTransferConfigMapUserList {
+
+	private static final String ELSTER_TRANSFER_USER_LOGIN_KEY = "login";
+	private static final String ELSTER_TRANSFER_USER_ROLE_KEY = "rolle";
+	private static final String ELSTER_TRANSFER_USER_CREDENTIALS_KEY = "credentials";
+	private static final String ELSTER_TRANSFER_USER_GROUP_KEY = "gruppe";
+	private static final String ELSTER_TRANSFER_USER_PASSWORTHASH_KEY = "passwortHash";
 
 	private List<Map<String, Object>> usersList;
 
@@ -42,20 +48,20 @@ public class OzgCloudElsterTransferConfigMapUserList {
 
 	boolean existsUser(String login) {
 		return usersList.stream()
-				.anyMatch(existingUser -> login.equals(existingUser.get("login")));
+				.anyMatch(existingUser -> login.equals(existingUser.get(ELSTER_TRANSFER_USER_LOGIN_KEY)));
 	}
 
 	void addUserToList(String login, String passwordHash, String role) {
 		Map<String, Object> formattedUser = Map.of(
-				"login", login,
-				"rolle", role,
-				"credentials", Map.of("passwortHash", passwordHash),
-				"gruppe", login);
+			    ELSTER_TRANSFER_USER_LOGIN_KEY, login,
+				ELSTER_TRANSFER_USER_ROLE_KEY, role,
+				ELSTER_TRANSFER_USER_CREDENTIALS_KEY, Map.of(ELSTER_TRANSFER_USER_PASSWORTHASH_KEY, passwordHash),
+				ELSTER_TRANSFER_USER_GROUP_KEY, login);
 		usersList.add(formattedUser);
 	}
 
 	void removeDeleted(String userLogin) {
-		usersList.removeIf(userMap -> userLogin.equals(userMap.get("login")));
+		usersList.removeIf(userMap -> userLogin.equals(userMap.get(ELSTER_TRANSFER_USER_LOGIN_KEY)));
 	}
 
 	public List<Map<String, Object>> getUsersList() {
diff --git a/src/main/java/de/ozgcloud/operator/elstertransfer/user/OzgCloudElsterTransferUserRemoteService.java b/src/main/java/de/ozgcloud/operator/elstertransfer/user/OzgCloudElsterTransferUserRemoteService.java
index aaa21f8dd98808369dd9cada68cd920371756bb7..2e830ff3d76a6e7e56d5f9931f0cb4ba47421301 100644
--- a/src/main/java/de/ozgcloud/operator/elstertransfer/user/OzgCloudElsterTransferUserRemoteService.java
+++ b/src/main/java/de/ozgcloud/operator/elstertransfer/user/OzgCloudElsterTransferUserRemoteService.java
@@ -26,32 +26,38 @@ package de.ozgcloud.operator.elstertransfer.user;
 import java.util.Base64;
 import java.util.Objects;
 
-import org.springframework.stereotype.Component;
+import org.springframework.stereotype.Service;
 
 import io.fabric8.kubernetes.api.model.ConfigMap;
 import io.fabric8.kubernetes.api.model.ConfigMapBuilder;
+import io.fabric8.kubernetes.api.model.ConfigMapList;
 import io.fabric8.kubernetes.api.model.Secret;
 import io.fabric8.kubernetes.api.model.SecretBuilder;
 import io.fabric8.kubernetes.api.model.apps.Deployment;
 import io.fabric8.kubernetes.client.KubernetesClient;
+import io.fabric8.kubernetes.client.dsl.NonNamespaceOperation;
 import io.fabric8.kubernetes.client.dsl.Resource;
 import lombok.RequiredArgsConstructor;
 
 @RequiredArgsConstructor
-@Component
-public class OzgCloudElsterTransferUserRemoteService {
+@Service
+class OzgCloudElsterTransferUserRemoteService {
 
 	private final KubernetesClient client;
 
 	public ConfigMap getConfigMap(String configmapNamespace, String configMapName) {
-		return client.configMaps().inNamespace(configmapNamespace).withName(configMapName).get();
+		return getConfigMapNonNamespaceOperation(configmapNamespace).withName(configMapName).get();
 	}
 
 	public ConfigMap createConfigMap(String configmapNamespace, String configMapName) {
-		return client.configMaps().inNamespace(configmapNamespace).resource(buildConfigMap(configMapName)).create();
+		return getConfigMapNonNamespaceOperation(configmapNamespace).resource(buildConfigMap(configMapName)).create();
 	}
 
-	public ConfigMap buildConfigMap(String configMapName) {
+	NonNamespaceOperation<ConfigMap, ConfigMapList, Resource<ConfigMap>> getConfigMapNonNamespaceOperation(String configmapNamespace) {
+		return client.configMaps().inNamespace(configmapNamespace);
+	}
+
+	ConfigMap buildConfigMap(String configMapName) {
 		return new ConfigMapBuilder()
 				.withNewMetadata()
 				.withName(configMapName)
@@ -74,7 +80,7 @@ public class OzgCloudElsterTransferUserRemoteService {
 		}
 	}
 
-	public Resource<Deployment> getDeploymentResource(String namespace, String deploymentName) {
+	Resource<Deployment> getDeploymentResource(String namespace, String deploymentName) {
 		return client.apps().deployments().inNamespace(namespace).withName(deploymentName);
 	}
 
@@ -87,14 +93,18 @@ public class OzgCloudElsterTransferUserRemoteService {
 		client.resource(buildUserSecret(namespace, userPassword, secretName)).serverSideApply();
 	}
 
-	public Secret buildUserSecret(String namespace, String userPassword, String secretName) {
+	Secret buildUserSecret(String namespace, String userPassword, String secretName) {
 		return new SecretBuilder()
 				.withNewMetadata()
 				.withName(secretName)
 				.endMetadata()
-				.addToData(Constants.ELSTER_TRANSFER_USER_LOGIN_KEY, Base64.getEncoder().encodeToString(namespace.getBytes()))
-				.addToData(Constants.ELSTER_TRANSFER_USER_PASSWORD_KEY, Base64.getEncoder().encodeToString(userPassword.getBytes()))
+				.addToData(Constants.ELSTER_TRANSFER_USER_LOGIN_KEY, getEncodedString(namespace.getBytes()))
+				.addToData(Constants.ELSTER_TRANSFER_USER_PASSWORD_KEY, getEncodedString(userPassword.getBytes()))
 				.build();
 	}
 
+	private String getEncodedString(byte[] bytes) {
+		return Base64.getEncoder().encodeToString(bytes);
+	}
+
 }
diff --git a/src/main/java/de/ozgcloud/operator/elstertransfer/user/OzgCloudElsterTransferUserService.java b/src/main/java/de/ozgcloud/operator/elstertransfer/user/OzgCloudElsterTransferUserService.java
index eb80ad72ff704af2090c005c022d856fda3ad366..aa27e22a279cc532f6d85c5f201fff118e00e725 100644
--- a/src/main/java/de/ozgcloud/operator/elstertransfer/user/OzgCloudElsterTransferUserService.java
+++ b/src/main/java/de/ozgcloud/operator/elstertransfer/user/OzgCloudElsterTransferUserService.java
@@ -32,7 +32,7 @@ import java.util.UUID;
 
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.security.crypto.bcrypt.BCrypt;
-import org.springframework.stereotype.Component;
+import org.springframework.stereotype.Service;
 import org.yaml.snakeyaml.Yaml;
 
 import com.github.mustachejava.DefaultMustacheFactory;
@@ -45,13 +45,13 @@ import lombok.extern.log4j.Log4j2;
 
 @Log4j2
 @RequiredArgsConstructor
-@Component
-public class OzgCloudElsterTransferUserService {
+@Service
+class OzgCloudElsterTransferUserService {
 
 	private final OzgCloudElsterTransferUserRemoteService remoteService;
 
 	@Value("${etr.namespace}")
-    private String etrNamespace;
+	private String etrNamespace;
 
 	public void updateConfigMapAndRestartDeploymentAndCreateSecret(String namespace) {
 		LOG.info("Updating/Creating Configmap");
diff --git a/src/test/java/de/ozgcloud/operator/elstertransfer/user/OzgCloudElsterTransferConfigMapUserListFactory.java b/src/test/java/de/ozgcloud/operator/elstertransfer/user/OzgCloudElsterTransferConfigMapUserListFactory.java
index ef483b7443c5e42c3968d319a1bfd2155c621fbd..fb271feae5f6336832ff1bffd6c2c455598bd177 100644
--- a/src/test/java/de/ozgcloud/operator/elstertransfer/user/OzgCloudElsterTransferConfigMapUserListFactory.java
+++ b/src/test/java/de/ozgcloud/operator/elstertransfer/user/OzgCloudElsterTransferConfigMapUserListFactory.java
@@ -31,13 +31,11 @@ public class OzgCloudElsterTransferConfigMapUserListFactory {
 
 	public static List<Map<String, Object>> create() {
 		Map<String, Object> user1 = Map.of(
-			"login", "user1",
-			"rolle", "USER",
-			"gruppe", "user1",
-			"credentials", Map.of(
-				"passwortHash", "$2a$12$cqKZMcwTUe/tju7PIFGhperWdV2Xa9o4fVw5eClbzatRhvxZphE1a"
-			)
-		);
+				"login", "user1",
+				"rolle", "USER",
+				"gruppe", "user1",
+				"credentials", Map.of(
+						"passwortHash", "$2a$12$cqKZMcwTUe/tju7PIFGhperWdV2Xa9o4fVw5eClbzatRhvxZphE1a"));
 		List<Map<String, Object>> usersList = Arrays.asList(user1);
 		return usersList;
 	}
diff --git a/src/test/java/de/ozgcloud/operator/elstertransfer/user/OzgCloudElsterTransferUserRemoteServiceTest.java b/src/test/java/de/ozgcloud/operator/elstertransfer/user/OzgCloudElsterTransferUserRemoteServiceTest.java
index 9e41e70a0a071c698ff615a54babba77396f0938..19807c1e49b76359470753d8ea1def25d1b14e09 100644
--- a/src/test/java/de/ozgcloud/operator/elstertransfer/user/OzgCloudElsterTransferUserRemoteServiceTest.java
+++ b/src/test/java/de/ozgcloud/operator/elstertransfer/user/OzgCloudElsterTransferUserRemoteServiceTest.java
@@ -230,14 +230,13 @@ class OzgCloudElsterTransferUserRemoteServiceTest {
 		@DisplayName("update deployment")
 		@Nested
 		class TestUpdateDeployment {
-			
 
 			@BeforeEach
 			void setUp() {
 				when(client.apps()).thenReturn(appsAPIGroupDSL);
 				when(appsAPIGroupDSL.deployments()).thenReturn(deploymentOperation);
 				when(deploymentOperation.inNamespace(anyString())).thenReturn(deploymentOperation);
-				when(deploymentOperation.withName(anyString())).thenReturn(deploymentResource);			
+				when(deploymentOperation.withName(anyString())).thenReturn(deploymentResource);
 			}
 
 			@Test
@@ -249,7 +248,7 @@ class OzgCloudElsterTransferUserRemoteServiceTest {
 				remoteService.restartDeployment(namespace, deploymentName);
 
 				verify(client.resource(deployment)).update();
-				
+
 			}
 
 			@Test
@@ -290,7 +289,7 @@ class OzgCloudElsterTransferUserRemoteServiceTest {
 	@Test
 	void shouldCallCreateOrUpdateSecret() {
 		String userPassword = "test-password";
-			Secret secret = new SecretBuilder()
+		Secret secret = new SecretBuilder()
 				.withNewMetadata()
 				.withName(secretName)
 				.endMetadata()
@@ -298,7 +297,7 @@ class OzgCloudElsterTransferUserRemoteServiceTest {
 				.addToData("password", Base64.getEncoder().encodeToString(userPassword.getBytes()))
 				.build();
 		when(client.resource(secret)).thenReturn(namespaceableSecret);
-	     
+
 		remoteService.createOrUpdateSecret(namespace, userPassword, secretName);
 
 		verify(client.resource(secret)).serverSideApply();