fix checkstyle issues

Signed-off-by: Christian Tzolov <[email protected]>

Author: tzolov

spring-ai-client-chat/src/main/java/org/springframework/ai/chat/client/advisor/AdvisorUtils.java

@@ -16,14 +16,10 @@
 
 package org.springframework.ai.chat.client.advisor;
 
-import java.util.List;
 import java.util.function.Predicate;
 
 import org.springframework.ai.chat.client.ChatClientResponse;
-import org.springframework.ai.chat.client.advisor.api.CallAdvisor;
-import org.springframework.ai.chat.client.advisor.api.CallAdvisorChain;
 import org.springframework.ai.chat.model.ChatResponse;
-import org.springframework.util.Assert;
 import org.springframework.util.StringUtils;
 
 /**

spring-ai-client-chat/src/main/java/org/springframework/ai/chat/client/advisor/api/CallAdvisorChain.java

@@ -20,8 +20,6 @@
 
 import org.springframework.ai.chat.client.ChatClientRequest;
 import org.springframework.ai.chat.client.ChatClientResponse;
-import org.springframework.ai.chat.client.advisor.DefaultAroundAdvisorChain;
-import org.springframework.util.Assert;
 
 /**
  * A chain of {@link CallAdvisor} instances orchestrating the execution of a
@@ -53,6 +51,6 @@ public interface CallAdvisorChain extends AdvisorChain {
 	 * @return a new CallAdvisorChain containing all advisors after the specified advisor
 	 * @throws IllegalArgumentException if the specified advisor is not part of the chain
 	 */
-	public CallAdvisorChain copy(CallAdvisor after);
+	CallAdvisorChain copy(CallAdvisor after);
 
 }

spring-ai-client-chat/src/test/java/org/springframework/ai/chat/client/advisor/AdvisorUtilsTests.java

@@ -18,21 +18,15 @@
 
 import java.util.List;
 
-import io.micrometer.observation.ObservationRegistry;
 import org.junit.jupiter.api.Nested;
 import org.junit.jupiter.api.Test;
 
-import org.springframework.ai.chat.client.ChatClientRequest;
 import org.springframework.ai.chat.client.ChatClientResponse;
-import org.springframework.ai.chat.client.advisor.api.CallAdvisor;
-import org.springframework.ai.chat.client.advisor.api.CallAdvisorChain;
 import org.springframework.ai.chat.messages.AssistantMessage;
 import org.springframework.ai.chat.metadata.ChatGenerationMetadata;
 import org.springframework.ai.chat.model.ChatResponse;
 import org.springframework.ai.chat.model.Generation;
 
-import static org.assertj.core.api.Assertions.assertThat;
-import static org.assertj.core.api.Assertions.assertThatThrownBy;
 import static org.junit.jupiter.api.Assertions.assertFalse;
 import static org.junit.jupiter.api.Assertions.assertTrue;
 import static org.mockito.BDDMockito.given;