Add AopAutoConfiguration (also starter and sample)

A side effect is that spring-boot-starter-data-jpa needs
to include an aspectjweaver depdendency. Hope that doesn't
hurt anything else.

[Fixes #56780004]

spring-boot-starters/pom.xml

@@ -15,6 +15,7 @@
 	</properties>
 	<modules>
 		<module>spring-boot-starter</module>
+		<module>spring-boot-starter-aop</module>
 		<module>spring-boot-starter-batch</module>
 		<module>spring-boot-starter-data-jpa</module>
 		<module>spring-boot-starter-integration</module>

spring-boot-starters/spring-boot-starter-aop/.gitignore

@@ -0,0 +1 @@
+/target

spring-boot-starters/spring-boot-starter-aop/pom.xml

@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+	<modelVersion>4.0.0</modelVersion>
+	<parent>
+		<groupId>org.springframework.boot</groupId>
+		<artifactId>spring-boot-starters</artifactId>
+		<version>0.5.0.BUILD-SNAPSHOT</version>
+	</parent>
+	<artifactId>spring-boot-starter-aop</artifactId>
+	<packaging>jar</packaging>
+	<properties>
+		<main.basedir>${basedir}/../..</main.basedir>
+	</properties>
+	<dependencies>
+		<dependency>
+			<groupId>${project.groupId}</groupId>
+			<artifactId>spring-boot-starter</artifactId>
+			<version>${project.version}</version>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework</groupId>
+			<artifactId>spring-aop</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>org.aspectj</groupId>
+			<artifactId>aspectjrt</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>org.aspectj</groupId>
+			<artifactId>aspectjweaver</artifactId>
+		</dependency>
+	</dependencies>
+</project>

spring-boot-starters/spring-boot-starter-data-jpa/pom.xml

@@ -15,17 +15,13 @@
 	<dependencies>
 		<dependency>
 			<groupId>${project.groupId}</groupId>
-			<artifactId>spring-boot-starter</artifactId>
+			<artifactId>spring-boot-starter-aop</artifactId>
 			<version>${project.version}</version>
 		</dependency>
 		<dependency>
 			<groupId>org.hibernate</groupId>
 			<artifactId>hibernate-entitymanager</artifactId>
 		</dependency>
-		<dependency>
-			<groupId>org.springframework</groupId>
-			<artifactId>spring-aop</artifactId>
-		</dependency>
 		<dependency>
 			<groupId>org.springframework</groupId>
 			<artifactId>spring-orm</artifactId>

spring-boot-starters/spring-boot-starter-parent/pom.xml

@@ -42,6 +42,11 @@
 				<artifactId>spring-boot-starter</artifactId>
 				<version>0.5.0.BUILD-SNAPSHOT</version>
 			</dependency>
+			<dependency>
+				<groupId>org.springframework.boot</groupId>
+				<artifactId>spring-boot-starter-aop</artifactId>
+				<version>0.5.0.BUILD-SNAPSHOT</version>
+			</dependency>
 			<dependency>
 				<groupId>org.springframework.boot</groupId>
 				<artifactId>spring-boot-starter-actuator</artifactId>