SerializableTypeWrapper reobtains type accessors from declaring interface

Issue: SPR-14487
(cherry picked from commit 8580483)

Author: jhoeller

spring-core/src/main/java/org/springframework/core/SerializableTypeWrapper.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2015 the original author or authors.
+ * Copyright 2002-2016 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.
@@ -372,6 +372,8 @@ static class MethodInvokeTypeProvider implements TypeProvider {
 
 		private final String methodName;
 
+		private final Class<?> declaringClass;
+
 		private final int index;
 
 		private transient Method method;
@@ -381,6 +383,7 @@ static class MethodInvokeTypeProvider implements TypeProvider {
 		public MethodInvokeTypeProvider(TypeProvider provider, Method method, int index) {
 			this.provider = provider;
 			this.methodName = method.getName();
+			this.declaringClass = method.getDeclaringClass();
 			this.index = index;
 			this.method = method;
 		}
@@ -404,7 +407,7 @@ public Object getSource() {
 
 		private void readObject(ObjectInputStream inputStream) throws IOException, ClassNotFoundException {
 			inputStream.defaultReadObject();
-			this.method = ReflectionUtils.findMethod(this.provider.getType().getClass(), this.methodName);
+			this.method = ReflectionUtils.findMethod(this.declaringClass, this.methodName);
 			Assert.state(Type.class == this.method.getReturnType() || Type[].class == this.method.getReturnType());
 		}
 	}