Using Maven Lombok and Aspect doesn't compile

When trying to run mvn package the project that include some Aspect (ex: powertool-logging) and also using lombok as dependency break the compilation.

I'm trying to use the powertool with lombok

Expected Behavior

Should not break the build, or have something in the documentation that explains how to make them work together

Possible Solution

Add documentation explaining how to fix it, or use another mechanism to compile de aspect.

Steps to Reproduce (for bugs)

1. Create a new project
2. Add lombok dependency
3. Add powertools-loggin dependency
4. Add powertools-loggin aspect plugin
5. Run mvn package

Environment

• Powertools version used: Latest
• Packaging format (Layers, Maven/Gradle): Maven
• AWS Lambda function runtime: Java 11
• Debugging logs
  [WARNING] You aren't using a compiler supported by lombok, so lombok will not work and has been disabled.
  Your processor is: org.aspectj.org.eclipse.jdt.internal.compiler.apt.dispatch.BatchProcessingEnvImpl
  Lombok supports: OpenJDK javac, ECJ
  :

How to enable debug mode**

# paste logs here

[msailes]

Hi, do you have a public project which reproduces the problem?

@msailes Just do a mvn clean package of this project:

https://github.com/mlefebvre-deblecx/powertools-lombok

If we do a mvn package just after it seems to fix the bug, but it comes back after a clean and for bigger project it does fix it.

Also, when the powertools aspect is removed from the pom.xml, the error disappears.

[pankajagrawal16]

@msailes Were you looking into this issue? Any further insights what is happening ?

[kozub]

Hey @msailes, I quickly checked an issue that you've raported. Looks that it is not directly related to aws-lambda-powertools-java. The main issue there is related to using Aspectj with Lombok, as both of them needs to add some secret sause during the compilation. You can use technic that is called weaving.

I've tried code that you'd provided (thanks for that!) and after changing plugin config in pom.xml to:

<configuration>
                    <sources/>
                    <weaveDirectories>
                        <weaveDirectory>${project.build.directory}/classes</weaveDirectory>
                    </weaveDirectories>
                    <source>1.8</source>
                    <target>1.8</target>
                    <complianceLevel>1.8</complianceLevel>
                    <aspectLibraries>
                        <aspectLibrary>
                            <groupId>software.amazon.lambda</groupId>
                            <artifactId>powertools-logging</artifactId>
                        </aspectLibrary>
                    </aspectLibraries>
                </configuration>

it works.

Could you please verify with your orginal source code that it works as well?

Some details about this issue:
https://palesz.wordpress.com/2011/12/03/howto-maven-lombok-and-aspectj-together/
https://www.mojohaus.org/aspectj-maven-plugin/examples/weaveDirectories.html

[msailes]

@pankajagrawal16 I imagine this case will be fairly common, should we update the docs to include it?

I'm not sure where we'd put it.

[kozub]

@pankajagrawal16 @msailes - Does it make any sense to add FAQ / other new section to docs for that kind of issues?

[msailes]

@kozub I think so, would you be in a position to submit a PR?

[kozub]

Sure, I can do it. I will do my best to provide required changes tomorrow.

[pankajagrawal16]

Its available here now https://awslabs.github.io/aws-lambda-powertools-java/FAQs/

[pankajagrawal16]

@mlefebvre-deblecx Let us know if this helps and fixes the issue you were facing. thanks @kozub for contribution.