Create enhanced FactoryBean instance before applying method interceptor (preferably via Objenesis)

Also removes "throws Exception" declaration from ThreadPoolExecutorFactoryBean's getObject method.

Issue: SPR-13095

spring-context/src/test/java/org/springframework/scheduling/concurrent/ThreadPoolExecutorFactoryBeanTests.java

@@ -0,0 +1,67 @@
+/*
+ * 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.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.scheduling.concurrent;
+
+import java.util.concurrent.Callable;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.FutureTask;
+
+import org.junit.Test;
+
+import org.springframework.context.ApplicationContext;
+import org.springframework.context.annotation.AnnotationConfigApplicationContext;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+import static org.junit.Assert.*;
+
+/**
+ * @author Juergen Hoeller
+ */
+public class ThreadPoolExecutorFactoryBeanTests {
+
+	@Test
+	public void defaultExecutor() throws Exception {
+		ApplicationContext context = new AnnotationConfigApplicationContext(ExecutorConfig.class);
+		ExecutorService executor = context.getBean("executor", ExecutorService.class);
+
+		FutureTask<String> task = new FutureTask<String>(new Callable<String>() {
+			@Override
+			public String call() throws Exception {
+				return "foo";
+			}
+		});
+		executor.execute(task);
+		assertEquals("foo", task.get());
+	}
+
+
+	@Configuration
+	public static class ExecutorConfig {
+
+		@Bean
+		public ThreadPoolExecutorFactoryBean executorFactory() {
+			return new ThreadPoolExecutorFactoryBean();
+		}
+
+		@Bean
+		public ExecutorService executor() {
+			return executorFactory().getObject();
+		}
+	}
+
+}