add used dependency spring-aop

Signed-off-by: olivier lamy <olamy@apache.org>

pom.xml

@@ -455,6 +455,11 @@
         <artifactId>spring-core</artifactId>
         <version>${springVersion}</version>
       </dependency>
+      <dependency>
+        <groupId>org.springframework</groupId>
+        <artifactId>spring-aop</artifactId>
+        <version>${springVersion}</version>
+      </dependency>
       <dependency>
         <groupId>org.springframework</groupId>
         <artifactId>spring-web</artifactId>

redback-users/redback-users-providers/redback-users-cached/pom.xml

@@ -51,7 +51,11 @@
     <dependency>
       <groupId>org.springframework</groupId>
       <artifactId>spring-context-support</artifactId>
-    </dependency>   
+    </dependency>
+    <dependency>
+      <groupId>org.springframework</groupId>
+      <artifactId>spring-aop</artifactId>
+    </dependency>
     <dependency>
       <groupId>javax.annotation</groupId>
       <artifactId>jsr250-api</artifactId>