diff --git a/e2e-test-app/src/main/java/com/sap/ai/sdk/app/controllers/OpenAiController.java b/e2e-test-app/src/main/java/com/sap/ai/sdk/app/controllers/OpenAiController.java
index f54419a2..2b760655 100644
--- a/e2e-test-app/src/main/java/com/sap/ai/sdk/app/controllers/OpenAiController.java
+++ b/e2e-test-app/src/main/java/com/sap/ai/sdk/app/controllers/OpenAiController.java
@@ -9,7 +9,6 @@
 import com.sap.ai.sdk.foundationmodels.openai.model.OpenAiChatCompletionFunction;
 import com.sap.ai.sdk.foundationmodels.openai.model.OpenAiChatCompletionOutput;
 import com.sap.ai.sdk.foundationmodels.openai.model.OpenAiChatCompletionParameters;
-import com.sap.ai.sdk.foundationmodels.openai.model.OpenAiChatCompletionStream;
 import com.sap.ai.sdk.foundationmodels.openai.model.OpenAiChatCompletionTool;
 import com.sap.ai.sdk.foundationmodels.openai.model.OpenAiChatMessage.OpenAiChatUserMessage;
 import com.sap.ai.sdk.foundationmodels.openai.model.OpenAiChatMessage.OpenAiChatUserMessage.ImageDetailLevel;
@@ -20,7 +19,6 @@
 import java.util.Arrays;
 import java.util.List;
 import java.util.Map;
-import java.util.stream.Stream;
 import javax.annotation.Nonnull;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.http.MediaType;