AspectJ Maven Plugin <weaveDependency> - aspectj

Question

I am trying to use aspectj maven plugin in our project that has multiple modules. Following the instructions given in this link http://mojo.codehaus.org/aspectj-maven-plugin/weaveJars.html
I am using #Aspectj annotation. My aspect is in a separate maven module called
artifactId - consumer
And the class whose method i want to intercept or advice is in
artifactId - producer
I have added the following configuration in the pom file of the consumer module:
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>aspectj-maven-plugin</artifactId>
<version>1.4</version>
<configuration>
<source>1.6</source>
<target>1.6</target>
<showWeaveInfo>true</showWeaveInfo>
<weaveDependencies>
<weaveDependency>
<groupId>com.home.demo</groupId>
<artifactId>producer</artifactId>
</weaveDependency>
</weaveDependencies>
</configuration>
<executions>
<execution>
<goals>
<goal>compile</goal>
</goals>
</execution>
</executions>
</plugin>
Also added "producer" as a dependency in the same pom file.
When i am doing mvn clean install for the consumer module the following information comes in the console.
[INFO] [aspectj:compile {execution: default}]
[INFO] Join point 'method-execution(void com.home.demo.producer.messaging.MomServiceEndpointListener.handle(com.home.messaging.service.MessageContext, com.home.messaging.service.MessageContext))' in
Type 'com.home.demo.producer.messaging.MomServiceEndpointListener' (MomServiceEndpointListener.java:21) advised by before advice from 'com.home.demo.ods.app.OdsConsumer' (OdsConsumer.java:38)
But while executing the application, it's not working. The aspect is not getting invoked.
I am not able to understand whether i am missing something.
Also i am having confusion whether the plugin configuration shown above should be in which module consumer(where my aspects are) or producer.

Answer 1

The problem is that weaveDependencies act like sources only.
Your consumer module takes original "sources" from weaveDependencies (producer), weaves them with aspects and put weaved classes into consumer(!!!) target/classes.
Therefore, producer artifact never knows about aspects and you use it unchanged.
You have to re-build a producer jar using classes from consumer/target/classes.
I don't think it's convenient, so i left my attempts to use this plugin in this way.
Also, several weaveDependencies will be merged into one scrap-heap of classes.
You better try Aspects from your external jar dependency and plugin config that is built into producer.