Avoid unnecessary annotation introspection on framework methods

Issue: SPR-16933

spring-context/src/main/java/org/springframework/context/annotation/ConfigurationClassEnhancer.java

@@ -189,8 +189,8 @@ class ConfigurationClassEnhancer {
 		@Override
 		public int accept(Method method) {
 			for (int i = 0; i < this.callbacks.length; i++) {
-				if (!(this.callbacks[i] instanceof ConditionalCallback) ||
-						((ConditionalCallback) this.callbacks[i]).isMatch(method)) {
+				Callback callback = this.callbacks[i];
+				if (!(callback instanceof ConditionalCallback) || ((ConditionalCallback) callback).isMatch(method)) {
 					return i;
 				}
 			}
@@ -286,6 +286,10 @@ class ConfigurationClassEnhancer {
 
 		@Override
 		public boolean isMatch(Method candidateMethod) {
+			return isSetBeanFactory(candidateMethod);
+		}
+
+		public static boolean isSetBeanFactory(Method candidateMethod) {
 			return (candidateMethod.getName().equals("setBeanFactory") &&
 					candidateMethod.getParameterCount() == 1 &&
 					BeanFactory.class == candidateMethod.getParameterTypes()[0] &&
@@ -432,6 +436,7 @@ class ConfigurationClassEnhancer {
 		@Override
 		public boolean isMatch(Method candidateMethod) {
 			return (candidateMethod.getDeclaringClass() != Object.class &&
+					!BeanFactoryAwareMethodInterceptor.isSetBeanFactory(candidateMethod) &&
 					BeanAnnotationHelper.isBeanAnnotated(candidateMethod));
 		}
 

spring-core/src/main/java/org/springframework/core/annotation/AnnotationUtils.java

@@ -640,12 +640,14 @@ public abstract class AnnotationUtils {
 		if (anns.length == 0) {
 			return false;
 		}
-		if (anns.length == 1) {
-			Class<?> annType = anns[0].annotationType();
-			return (annType != Nullable.class && annType != Deprecated.class);
-		}
+		for (Annotation ann : anns) {
+			Class<?> annType = ann.annotationType();
+			if (annType != Nullable.class && annType != Deprecated.class) {
 				return true;
 			}
+		}
+		return false;
+	}
 
 	private static boolean isOverride(Method method, Method candidate) {
 		if (!candidate.getName().equals(method.getName()) ||