Framework build compatible with JDK 9 (tests running against java.base module)

Issue: SPR-13344

spring-tx/src/test/java/org/springframework/transaction/annotation/EnableTransactionManagementTests.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.
@@ -18,8 +18,6 @@ package org.springframework.transaction.annotation;
 
 import java.util.Map;
 
-import javax.annotation.PostConstruct;
-
 import org.junit.Test;
 
 import org.springframework.aop.support.AopUtils;
@@ -153,10 +151,7 @@ public class EnableTransactionManagementTests {
 	static class Spr11915Config {
 
 		@Autowired
-		private ConfigurableApplicationContext applicationContext;
-
-		@PostConstruct
-		public void initializeApp() {
+		public void initializeApp(ConfigurableApplicationContext applicationContext) {
 			applicationContext.getBeanFactory().registerSingleton(
 					"qualifiedTransactionManager", new CallCountingTransactionManager());
 		}