Only expose ASM-driven method order if the methods match

Issue: SPR-14505

Author: jhoeller

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2016 the original author or authors.
+ * Copyright 2002-2017 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.
@@ -365,15 +365,20 @@ private Set<MethodMetadata> retrieveBeanMethodMetadata(SourceClass sourceClass)
 				AnnotationMetadata asm =
 						this.metadataReaderFactory.getMetadataReader(original.getClassName()).getAnnotationMetadata();
 				Set<MethodMetadata> asmMethods = asm.getAnnotatedMethods(Bean.class.getName());
-				Set<MethodMetadata> reflectionMethods = beanMethods;
-				beanMethods = new LinkedHashSet<>();
-				for (MethodMetadata asmMethod : asmMethods) {
-					for (MethodMetadata reflectionMethod : reflectionMethods) {
-						if (reflectionMethod.getMethodName().equals(asmMethod.getMethodName())) {
-							beanMethods.add(reflectionMethod);
-							break;
+				if (asmMethods.size() >= beanMethods.size()) {
+					Set<MethodMetadata> selectedMethods = new LinkedHashSet<>(asmMethods.size());
+					for (MethodMetadata asmMethod : asmMethods) {
+						for (MethodMetadata beanMethod : beanMethods) {
+							if (beanMethod.getMethodName().equals(asmMethod.getMethodName())) {
+								selectedMethods.add(beanMethod);
+								break;
+							}
 						}
 					}
+					if (selectedMethods.size() == beanMethods.size()) {
+						// All reflection-detected methods found in ASM method set -> proceed
+						beanMethods = selectedMethods;
+					}
 				}
 			}
 			catch (IOException ex) {