I just built an annotation processor that generates a builder class for my classes annotated with `@...

# kapt

[epool]

I just built an annotation processor that generates a builder class for my classes annotated with @DataBuilder, my classes annotated with this annotation are located in com.my.package.model and the generated builder class is also located in the same package com.my.package.model but in the generated directory of course build/generated/source/kapt/debug/com/my/package/model/MyModelBuilder.kt, I can use these generated classes fine inside of my model classes(written in Kotlin)
BUT I cannot use the generated MyModelBuilder Kotlin class inside of a java class as a class member

package com.my.package.home;
import com.my.package.model.MyModelBuilder;
public class Home {
    MyModelBuilder builder; // <=== AS recognizes the class, but I'm having an compilation issue
}

AndroidStudio recognizes the class, but I’m having this compilation issue

com/my/package/home/Home.java:4: error: cannot find symbol
MyModelBuilder builder;
           ^
  symbol:   class MyModelBuilder
  location: class Home

it’s weird because I can use this generated builder class only inside of methods, this code works fine

package com.my.package.home;
import com.my.package.model.MyModelBuilder;
public class Home {
    public void hello() {
        MyModelBuilder builder;
    }
}

could somebody here help me to understand this behavior? In advance, thanks!

[gildor]

I think it’s hard to help you using this information. Could you please reproduce it on a sample project

[epool]

got it, I’ll create a project for trying to reproduce this

[epool]

@gildor sorry, I just added the repo here https://github.com/epool/HelloKapt

[gildor]

Hmm, I think that Android plugin be default do not add this dir to sourcesets

[gildor]

I suppose it should work if you add generated sources dir to source set:

sourceSets {
        main.java.srcDirs +=  file("$buildDir/generated/source/kapt/")
}

[gildor]

but actually it’s really strange, it works on my project with other annotation processors

[gildor]

Oh, I got it, I use this code from Kotlin, your AP used from Java

[gildor]

I suppose there is some issue with order of AP/javac/kapt

[gildor]

Probably make sense to create an issue on Kotlin issue tracker

[gildor]

Even with sourceSets it doesn’t work for me on first run, only on second one, when all generated files are compiled

[epool]

it’s weird because it works if I use the generated class inside of methods. thanks I just created an issue for this here https://youtrack.jetbrains.net/issue/KT-24591