Refactor using interface ClientRoleToRealmRoleService

src/main/java/eu/europa/ec/simpl/usersroles/services/ClientRoleToRealmRoleService.java

+package eu.europa.ec.simpl.usersroles.services;
+
+public interface ClientRoleToRealmRoleService {
+    void copy();
+}

src/main/java/eu/europa/ec/simpl/usersroles/services/impl/ClientRoleToRealmRoleService.java → src/main/java/eu/europa/ec/simpl/usersroles/services/impl/ClientRoleToRealmRoleServiceImpl.java

 package eu.europa.ec.simpl.usersroles.services.impl;
 
 import eu.europa.ec.simpl.usersroles.configurations.keycloak.KeycloakProperties;
+import eu.europa.ec.simpl.usersroles.services.ClientRoleToRealmRoleService;
 import eu.europa.ec.simpl.usersroles.services.KeycloakService;
 import eu.europa.ec.simpl.usersroles.services.KeycloakUserService;
 import jakarta.annotation.PostConstruct;
@@ -19,7 +20,7 @@ import org.springframework.stereotype.Service;
 @Log4j2
 @Service
 @ConditionalOnProperty(value = "keycloak.client-to-realm-role-migration.enabled", havingValue = "true")
-public class ClientRoleToRealmRoleService {
+public class ClientRoleToRealmRoleServiceImpl implements ClientRoleToRealmRoleService {
 
     private final KeycloakService keycloakService;
     private final KeycloakUserService keycloakUserService;
@@ -28,7 +29,7 @@ public class ClientRoleToRealmRoleService {
     private RealmResource realmResource;
     private ClientsResource clientsResource;
 
-    public ClientRoleToRealmRoleService(
+    public ClientRoleToRealmRoleServiceImpl(
             KeycloakUserService keycloakUserService,
             KeycloakService keycloakService,
             KeycloakProperties keycloakProperties) {
@@ -37,6 +38,7 @@ public class ClientRoleToRealmRoleService {
         this.keycloakProperties = keycloakProperties;
     }
 
+    @Override
     @PostConstruct
     public void copy() {
         this.realmResource = keycloakService.getAppRealm();

src/test/java/eu/europa/ec/simpl/usersroles/services/impl/ClientRoleToRealmRoleServiceTest.java → src/test/java/eu/europa/ec/simpl/usersroles/services/impl/ClientRoleToRealmRoleServiceImplTest.java

@@ -20,7 +20,7 @@ import org.mockito.Mock;
 import org.mockito.junit.jupiter.MockitoExtension;
 
 @ExtendWith(MockitoExtension.class)
-class ClientRoleToRealmRoleServiceTest {
+class ClientRoleToRealmRoleServiceImplTest {
 
     @Mock
     private KeycloakUserService keycloakUserService;
@@ -44,7 +44,7 @@ class ClientRoleToRealmRoleServiceTest {
     private RolesResource rolesResource;
 
     @InjectMocks
-    private ClientRoleToRealmRoleService clientRoleToRealmRoleMapper;
+    private ClientRoleToRealmRoleServiceImpl clientRoleToRealmRoleMapper;
 
     @Test
     void testInit() {