Fix Checkstyle violation and rearrange getAdvisorCount declaration

See gh-26017

Author: jhoeller

spring-aop/src/main/java/org/springframework/aop/framework/Advised.java

@@ -114,6 +114,15 @@ public interface Advised extends TargetClassAware {
 	 */
 	Advisor[] getAdvisors();
 
+	/**
+	 * Return the number of advisors applying to this proxy.
+	 * <p>The default implementation delegates to {@code getAdvisors().length}.
+	 * @since 5.3.1
+	 */
+	default int getAdvisorCount() {
+		return getAdvisors().length;
+	}
+
 	/**
 	 * Add an advisor at the end of the advisor chain.
 	 * <p>The Advisor may be an {@link org.springframework.aop.IntroductionAdvisor},
@@ -223,12 +232,4 @@ public interface Advised extends TargetClassAware {
 	 */
 	String toProxyConfigString();
 
-	/**
-	 * Equivalent to {@code getAdvisors().length}
-	 * @return count of advisors of this advised
-	 */
-	default int getAdvisorCount() {
-		return getAdvisors().length;
-	}
-
 }

spring-aop/src/main/java/org/springframework/aop/framework/AdvisedSupport.java

@@ -241,6 +241,11 @@ public final Advisor[] getAdvisors() {
 		return this.advisors.toArray(new Advisor[0]);
 	}
 
+	@Override
+	public int getAdvisorCount() {
+		return this.advisors.size();
+	}
+
 	@Override
 	public void addAdvisor(Advisor advisor) {
 		int pos = this.advisors.size();
@@ -534,11 +539,6 @@ private void readObject(ObjectInputStream ois) throws IOException, ClassNotFound
 		this.methodCache = new ConcurrentHashMap<>(32);
 	}
 
-	@Override
-	public int getAdvisorCount() {
-		return advisors.size();
-	}
-
 	@Override
 	public String toProxyConfigString() {
 		return toString();