ConstructorResolver error hints about mixing indexed and named args

This commit adds a note to an exception in `ConstructorResolver`'s
`autowireConstructor` method hinting that attention should be paid to
cases that mix indexed arguments and named arguments. This is especially
when inheriting bean definitions in xml.

Closes gh-29976
Close gh-PR

spring-beans/src/main/java/org/springframework/beans/factory/support/ConstructorResolver.java

@@ -294,7 +294,9 @@ class ConstructorResolver {
 				}
 				throw new BeanCreationException(mbd.getResourceDescription(), beanName,
 						"Could not resolve matching constructor on bean class [" + mbd.getBeanClassName() + "] " +
-						"(hint: specify index/type/name arguments for simple parameters to avoid type ambiguities)");
+						"(hint: specify index/type/name arguments for simple parameters to avoid type ambiguities. " +
+						"You should also check the consistency of arguments when mixing indexed and named arguments, " +
+						"especially in case of bean definition inheritance)");
 			}
 			else if (ambiguousConstructors != null && !mbd.isLenientConstructorResolution()) {
 				throw new BeanCreationException(mbd.getResourceDescription(), beanName,

spring-beans/src/test/java/org/springframework/beans/factory/DefaultListableBeanFactoryTests.java

@@ -790,6 +790,32 @@ class DefaultListableBeanFactoryTests {
 		assertThat(mergedBeanDefinition1).as("Use cached merged bean definition").isSameAs(mergedBeanDefinition2);
 	}
 
+	@Test
+	void hintAtPossibleDuplicateArgumentsInParentAndChildWhenMixingIndexAndNamed() {
+		final String EXPECTED_NAME = "Juergen";
+		final int EXPECTED_AGE = 41;
+
+		RootBeanDefinition parentDefinition = new RootBeanDefinition(TestBean.class);
+		parentDefinition.setAbstract(true);
+		parentDefinition.getConstructorArgumentValues().addIndexedArgumentValue(0, EXPECTED_NAME);
+
+		ChildBeanDefinition childDefinition = new ChildBeanDefinition("parent");
+		childDefinition.getConstructorArgumentValues().addGenericArgumentValue(new ConstructorArgumentValues.ValueHolder(EXPECTED_NAME, null, "name"));
+		childDefinition.getConstructorArgumentValues().addGenericArgumentValue(new ConstructorArgumentValues.ValueHolder(EXPECTED_AGE, null, "age"));
+
+		DefaultListableBeanFactory factory = new DefaultListableBeanFactory();
+		factory.registerBeanDefinition("parent", parentDefinition);
+		factory.registerBeanDefinition("child", childDefinition);
+
+		assertThatExceptionOfType(BeanCreationException.class)
+				.isThrownBy(() -> factory.getBean("child", TestBean.class))
+				.withMessage("Error creating bean with name 'child': Could not resolve matching constructor on bean class " +
+						"[org.springframework.beans.testfixture.beans.TestBean] (hint: specify index/type/name arguments " +
+						"for simple parameters to avoid type ambiguities. " +
+						"You should also check the consistency of arguments when mixing indexed and named arguments, " +
+						"especially in case of bean definition inheritance)");
+	}
+
 	@Test
 	void getTypeWorksAfterParentChildMerging() {
 		RootBeanDefinition parentDefinition = new RootBeanDefinition(TestBean.class);