diff --git a/agentscope-examples/graceful-shutdown/pom.xml b/agentscope-examples/graceful-shutdown/pom.xml
index 4c44cba67..6a1db3452 100644
--- a/agentscope-examples/graceful-shutdown/pom.xml
+++ b/agentscope-examples/graceful-shutdown/pom.xml
@@ -67,11 +67,6 @@
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-web</artifactId>
         </dependency>
-
-        <dependency>
-            <groupId>org.projectlombok</groupId>
-            <artifactId>lombok</artifactId>
-        </dependency>
     </dependencies>
 
     <build>
diff --git a/agentscope-examples/graceful-shutdown/src/main/java/io/agentscope/examples/shutdown/e2e/AgentService.java b/agentscope-examples/graceful-shutdown/src/main/java/io/agentscope/examples/shutdown/e2e/AgentService.java
index 681180d1e..32f56336b 100644
--- a/agentscope-examples/graceful-shutdown/src/main/java/io/agentscope/examples/shutdown/e2e/AgentService.java
+++ b/agentscope-examples/graceful-shutdown/src/main/java/io/agentscope/examples/shutdown/e2e/AgentService.java
@@ -36,7 +36,8 @@
 import java.util.LinkedHashMap;
 import java.util.Map;
 import java.util.stream.Collectors;
-import lombok.extern.slf4j.Slf4j;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
@@ -45,10 +46,11 @@
 /**
  * Service for managing agent instances and chat operations.
  */
-@Slf4j
 @Service
 public class AgentService {
 
+    private static final Logger log = LoggerFactory.getLogger(AgentService.class);
+
     private static final String DATA_ANALYZE_SYS_PROMPT =
             "You are a data analysis assistant. "
                     + "When asked to analyze a dataset, follow these steps in order:\n"