Add exception-handler attribute support for AspectJ

Previously, the exception-handler attribute was not taken care of when
task:annotation-driven is used in AspectJ mode. This commit provides the
expected behavior.

Issue: SPR-12619

spring-context/src/test/java/org/springframework/scheduling/config/AnnotationDrivenBeanDefinitionParserTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2014 the original author or authors.
+ * Copyright 2002-2015 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 static org.junit.Assert.*;
 
 /**
  * @author Mark Fisher
+ * @author Stephane Nicoll
  */
 public class AnnotationDrivenBeanDefinitionParserTests {
 
@@ -64,4 +65,11 @@ public class AnnotationDrivenBeanDefinitionParserTests {
 		assertSame(scheduler, new DirectFieldAccessor(postProcessor).getPropertyValue("scheduler"));
 	}
 
+	@Test
+	public void asyncPostProcessorExceptionHandlerReference() {
+		Object exceptionHandler = context.getBean("testExceptionHandler");
+		Object postProcessor = context.getBean(TaskManagementConfigUtils.ASYNC_ANNOTATION_PROCESSOR_BEAN_NAME);
+		assertSame(exceptionHandler, new DirectFieldAccessor(postProcessor).getPropertyValue("exceptionHandler"));
+	}
+
 }

spring-context/src/test/resources/org/springframework/scheduling/config/annotationDrivenContext.xml

@@ -7,10 +7,14 @@
 				http://www.springframework.org/schema/task
 				http://www.springframework.org/schema/task/spring-task.xsd">
 
-	<task:annotation-driven executor="testExecutor" scheduler="testScheduler"/>
+	<task:annotation-driven executor="testExecutor" scheduler="testScheduler"
+							exception-handler="testExceptionHandler"/>
 
 	<task:executor id="testExecutor"/>
 
 	<task:scheduler id="testScheduler"/>
 
+	<bean id="testExceptionHandler"
+		  class="org.springframework.aop.interceptor.SimpleAsyncUncaughtExceptionHandler"/>
+
 </beans>