diff --git a/router/src/test/java/de/ozgcloud/eingang/router/VorgangManagerServerResolverTest.java b/router/src/test/java/de/ozgcloud/eingang/router/VorgangManagerServerResolverTest.java
index c47a52154f7130f84c427ac090c3b20cb3245fe3..7bcc1d1f45488a6b5832662ce87f7e29bc6a79df 100644
--- a/router/src/test/java/de/ozgcloud/eingang/router/VorgangManagerServerResolverTest.java
+++ b/router/src/test/java/de/ozgcloud/eingang/router/VorgangManagerServerResolverTest.java
@@ -175,7 +175,6 @@ class VorgangManagerServerResolverTest {
 		private ManagableStub<?> stub;
 
 		private final Optional<String> organisationsEinheitenId = Optional.of(ZustaendigeStelleTestFactory.ORGANISATIONSEINHEIT_ID);
-		private final Class<? extends AbstractStub<?>> stubClass = VorgangServiceBlockingStub.class;
 
 		@DisplayName("on zufi strategy")
 		@Nested
@@ -191,7 +190,7 @@ class VorgangManagerServerResolverTest {
 			void shouldCallCreateStub() {
 				createStub();
 
-				verify(resolver).createStub(organisationsEinheitenId, stubFactory, stubClass);
+				verify(resolver).createStub(organisationsEinheitenId, stubFactory, VorgangServiceBlockingStub.class);
 			}
 
 			@Test
@@ -216,7 +215,7 @@ class VorgangManagerServerResolverTest {
 			void shouldCallCreateStub() {
 				createStub();
 
-				verify(resolver).createStubByConfiguredChannels(organisationsEinheitenId, stubFactory, stubClass);
+				verify(resolver).createStubByConfiguredChannels(organisationsEinheitenId, stubFactory, VorgangServiceBlockingStub.class);
 			}
 
 			@Test
@@ -227,8 +226,8 @@ class VorgangManagerServerResolverTest {
 			}
 		}
 
-		private <T extends AbstractStub<T>> ManagableStub<T> createStub() {
-			return resolver.createStub(organisationsEinheitenId, stubFactory, stubClass);
+		private ManagableStub<VorgangServiceBlockingStub> createStub() {
+			return resolver.createStub(organisationsEinheitenId, stubFactory, VorgangServiceBlockingStub.class);
 		}
 	}
 
@@ -244,7 +243,6 @@ class VorgangManagerServerResolverTest {
 		private ManagedChannel managedChannel;
 
 		private Optional<String> organisationsEinheitenId = Optional.of(VorgangManagerListPropertiesTestFactory.ORGANISATIONSEINHEIT_ID);
-		private Class<? extends AbstractStub<?>> stubClass = VorgangServiceBlockingStub.class;
 		private final String vorgangManagerAddress = "dummyVorgangManagerAddress";
 
 		@BeforeEach
@@ -272,7 +270,7 @@ class VorgangManagerServerResolverTest {
 		void shouldCreateStub() {
 			createCloseableStub();
 
-			verify(stubFactory).createStub(stubClass, managedChannel);
+			verify(stubFactory).createStub(VorgangServiceBlockingStub.class, managedChannel);
 		}
 
 		@Test
@@ -290,8 +288,8 @@ class VorgangManagerServerResolverTest {
 			assertThat(createdStub.get()).isEqualTo(stub);
 		}
 
-		private <T extends AbstractStub<T>> ManagableStub<T> createCloseableStub() {
-			return resolver.createCloseableStub(organisationsEinheitenId, stubFactory, stubClass);
+		private ManagableStub<VorgangServiceBlockingStub> createCloseableStub() {
+			return resolver.createCloseableStub(organisationsEinheitenId, stubFactory, VorgangServiceBlockingStub.class);
 		}
 	}
 
@@ -384,7 +382,7 @@ class VorgangManagerServerResolverTest {
 
 		private ManagableStub<?> createStubByConfiguredChannels() {
 			return resolver.createStubByConfiguredChannels(Optional.of(VorgangManagerListPropertiesTestFactory.ORGANISATIONSEINHEIT_ID), stubFactory,
-					stubClass);
+					VorgangServiceBlockingStub.class);
 		}
 	}