MethodValidationInterceptor excludes FactoryBean metadata methods

Issue: SPR-17374

spring-context/src/test/java/org/springframework/validation/beanvalidation/MethodValidationTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2017 the original author or authors.
+ * Copyright 2002-2018 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -27,6 +27,7 @@ import org.junit.Test;
 
 import org.springframework.aop.framework.ProxyFactory;
 import org.springframework.beans.MutablePropertyValues;
+import org.springframework.beans.factory.FactoryBean;
 import org.springframework.context.annotation.AnnotationConfigApplicationContext;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
@@ -119,8 +120,8 @@ public class MethodValidationTests {
 	@Test
 	public void testLazyValidatorForMethodValidation() {
 		AnnotationConfigApplicationContext ctx = new AnnotationConfigApplicationContext(
-				LazyMethodValidationConfig.class, CustomValidatorBean.class, MyValidBean.class);
-		ctx.getBean(MyValidInterface.class).myValidMethod("value", 5);
+				LazyMethodValidationConfig.class, CustomValidatorBean.class, MyValidBean.class, MyValidFactoryBean.class);
+		ctx.getBeansOfType(MyValidInterface.class).values().forEach(bean -> bean.myValidMethod("value", 5));
 	}
 
 
@@ -143,6 +144,35 @@ public class MethodValidationTests {
 	}
 
 
+	@MyStereotype
+	public static class MyValidFactoryBean implements FactoryBean<String>, MyValidInterface<String> {
+
+		@Override
+		public String getObject() {
+			return null;
+		}
+
+		@Override
+		public Class<?> getObjectType() {
+			return String.class;
+		}
+
+		@Override
+		public Object myValidMethod(String arg1, int arg2) {
+			return (arg2 == 0 ? null : "value");
+		}
+
+		@Override
+		public void myValidAsyncMethod(String arg1, int arg2) {
+		}
+
+		@Override
+		public String myGenericMethod(String value) {
+			return value;
+		}
+	}
+
+
 	public interface MyValidInterface<T> {
 
 		@NotNull Object myValidMethod(@NotNull(groups = MyGroup.class) String arg1, @Max(10) int arg2);