Fix new Sonar issues

spring-integration-core/src/main/java/org/springframework/integration/handler/advice/RateLimiterRequestHandlerAdvice.java

@@ -34,6 +34,7 @@ import io.vavr.control.Try;
  * <a href="https://github.com/resilience4j/resilience4j#ratelimiter">Resilience4j</a>.
  *
  * @author Artem Bilan
+ * @author Gary Russell
  *
  * @since 5.2
  */
@@ -126,7 +127,7 @@ public class RateLimiterRequestHandlerAdvice extends AbstractRequestHandlerAdvic
 	}
 
 	@Override
-	protected Object doInvoke(ExecutionCallback callback, Object target, Message<?> message) throws Exception {
+	protected Object doInvoke(ExecutionCallback callback, Object target, Message<?> message) {
 		CheckedFunction0<Object> restrictedCall =
 				RateLimiter.decorateCheckedSupplier(this.rateLimiter, callback::execute);
 		try {

spring-integration-core/src/test/java/org/springframework/integration/handler/advice/RateLimiterRequestHandlerAdviceTests.java

@@ -21,6 +21,7 @@ import static org.assertj.core.api.Assertions.assertThatExceptionOfType;
 
 import java.time.Duration;
 import java.util.concurrent.TimeUnit;
+import java.util.stream.IntStream;
 
 import org.junit.jupiter.api.Test;
 
@@ -65,7 +66,7 @@ public class RateLimiterRequestHandlerAdviceTests {
 		this.requestChannel.send(testMessage);
 
 		assertThatExceptionOfType(MessagingException.class)
-				.isThrownBy(() -> this.requestChannel.send(testMessage))
+				.isThrownBy(() -> IntStream.range(0, 10).forEach(i -> this.requestChannel.send(testMessage)))
 				.withCauseInstanceOf(RequestNotPermitted.class)
 				.withMessageContaining("Rate limit exceeded for: ");