AspectJ weaving with gradle 5.2.1 problem

Help/Discuss
1

Hi gradle forum,

I want to ask you for help with my aspectJ weaving in gradle problem.

I was using gradle 3.4.1 and everything worked perfectly. For AspectJ weaving I used similar code to answer of this topic Stackoverflow - gradle + aspectj.

But now I upgraded to the newest Gradle 5.2.1, Android plugin 3.3.2, so I had to stop using compile configuration and switched it to implementation.
Snippet of my code:

> def androidSdk = android.getAdbExecutable().parent + "/../platforms/" + android.compileSdkVersion + "/android.jar" //adding path to android jar
>
> def iajcClasspath = configurations.implementation.asPath + ";" + androidSdk //combining path from implementation configuration and path to android jar
>
> project.file('classes-woven').mkdirs() //making dir for woven classes
>
> configurations.implementation.dependencies.each { dep -> //adding path to classes.jar inside aar's from projects in implementation configuration
>
>     if (dep.hasProperty("dependencyProject")) {
>             iajcClasspath += ":" + dep.dependencyProject.buildDir + "/intermediates/bundles/${pathInsideAar}/classes.jar"
>     }
>
> }
>
> ant.taskdef(resource: "org/aspectj/tools/ant/taskdefs/aspectjTaskdefs.properties", classpath: configurations.ajc.asPath) //defining task iajc
>
> ant.iajc( //weaving aspects into classes, stored in classes-woven dir
>         destDir: 'classes-woven',
>         showWeaveInfo: "true",
>         Xlint: "ignore",
>         aspectPath: configurations.aspects.asPath,
>         sourceRootCopyFilter: "**/*.java",
>         inpath: inpathDir,
>         classpath: iajcClasspath
> )

And there comes the problem - when I try to build it, it says, there is error “Resolving configuration ‘implementation’ directly is not allowed” on line “def iajcClasspath = configurations.implementation.asPath + “;” + androidSdk”.

I was trying to debug it, so I create my own configuration, which implements “implementation”, but when I build it, it says “Cannot choose between the following:
configurations of project xxx”, which I was unable to remove.

I can’t figure out, where is the difference between old and new gradle and what to do to weav aspectj into my code.

Thank you in advance,

Petr

2

Instead trying to access the configuration directly, configurations.implementation, would finding it by name, configurations.findByName('implementation'), or get by name, configurations.getByName('implementation'), work?

3

Hi Justin,

really thanks for your advice. I tried to build it with both suggested methods, but unfortunately it didn’t help, these methods probably will return “implementation” and it is the same situation as I experienced before (error: Resolving configuration ‘implementation’ directly is not allowed).

Don’t you have any other idea, please? I tried to google it of course, but nothing helped… Or any “official” source, where is this error mentioned to know exactly, what does it cause? I can’t find anything…

Thank you,

Petr

4

Hi @lohi,

I see the error you are talking about and its in the default configuration class.

I am not a gradle team dev so I don’t have insight into it. I was able to get the path though through a custom config:

configurations {
    customConfiguration.extendsFrom(implementation)
}
task customTask {
    doLast {
        println(configurations.customConfiguration.asPath)
    }
}

Could you go down the route of a custom configuration and use that instead of the provided ones from gradle/android?

5

Hi Justin,

thank you for your reply again. Unfortunately, I tried it this way - I mentioned it in my first post as:

I create my own configuration, which implements “implementation”, but when I build it, it says “Cannot choose between the following:
configurations of project xxx”, which I was unable to remove.

So I just moved from one error to another… I found this post on stack overflow (Android Studio 3.0 Compile Issue (Cannot choose between Configurations) - Stack Overflow) with the same error and tried to solve it as in “verified answer”

implementation project(path: ':lp_messaging_sdk', configuration: 'default')

But it lead me to third error - something about duplicity of one of modules (I don’t have the project here, so I can’t give you the error).

So I know, that it’s little bit confusing, but I need solve one of these errors to be able to compile my project again…:slight_smile:

Thank you in advance really really much!

Petr

6

Sorry @lohi I don’t have much more to contribute then. The sample I gave (custom config) works with a brand new android studio based project. I unfortunately haven’t run into the other problems.

7

Hi @lohi,

I needed to do something similar and made it work with a buildSrc plugin. Attached is the project. There is an aspectj task that depends on java compile task. There is a separate sourceset/configuration for aspectj files, particular .aj source.

you can see the output in the buildDir/aspectj directory.

Maybe that can help you out. sorry its not ant based.

JT

ajplugin.zip (59.8 KB)