Hi there, I’ve been using kapt for a few weeks now and even though I managed to finish what I want...

# kapt

[markotron]

Hi there,

I’ve been using kapt for a few weeks now and even though I managed to finish what I wanted, I still want to ask a kapt-gradle related question to fill in some gaps I have.

Basically, when I’m working with an annotation processor and gradle (3.0), and I make some changes in the annotation processor’s code, the changes are sometimes applied and sometimes aren’t. When they aren’t, I search for all gradle processes (daemons) and kill them; rebuild the project and everything works again.

Does anyone know why do I have to do this?

[yan]

Looks like a bug in kapt+incremental compilation. Do you have any reproducible sample? Or at least some cases in mind when kapt is not re-launched after changes in annotation processor?

[markotron]

Here I am! Although I thought it happens more often its probably only related to loading resources and changing resource files.

[markotron]

I created a simple processor that loads a resource file, reads its content and writes it in the console

[markotron]

https://github.com/markotron/kapt-resource-problem

[markotron]

If you run ./gradlew clean assembleDebug you’ll get the content of the test.txt file

[markotron]

change the content, rerun the command and you’ll get the old content

[markotron]

restart the gradle daemon and rerun, everything should be ok

[markotron]

side-note: To get the output in the console I had to use Diagnostic.Kind.MANDATORY_WARNING, if I use Diagnostic.Kind.NOTE nothing is printed. It doesn’t look like intended behavior.

[markotron]

Also, I don’t think is related but, when I create a new android project the auto-generated gradle file has

task clean(type: Delete) {
    delete rootProject.buildDir
}

This causes an error:

Error:(26, 0) Declaring custom 'clean' task when using the standard Gradle lifecycle plugins is not allowed.
<a href="openFile:/Users/markotron/Documents/experiments/KaptSampleProject/build.gradle">Open File</a>

[markotron]

I commented out this clean tasks. And even tried to manually delete the rootProject.buildDir before running ./gradlew clean assembleDebug

[yan]

Ok! One note: if you see something like this in the future, please do not hesitate to file new issues :) The link is kotl.in/issue.
Slack comments will disappear in a month, but the issue will stay forever.

[yan]

It would be also very nice if you could post this as a new issue.

[yan]

The latter problem (issue with “clean”) is not connected with kapt or Kotlin, it looks like that it’s about Android Studio integration

[markotron]

Yup, I just started with annotation processing, and it seemed more likely that I was doing something wrong… I’ll post it as an issue right now.

[markotron]

https://youtrack.jetbrains.com/issue/KT-21483

[yan]

Thanks!