error: Unexpected error: Attempt to recreate a file for type com.example.$DemoTest$Definition

[natros]

Expected Behavior

Compile without errors

Actual Behaviour

> Task :compileJava
Note: Creating bean classes for 3 type elements

> Task :processResources UP-TO-DATE
> Task :classes

> Task :compileTestJava FAILED
Note: Creating bean classes for 1 type elements
error: Unexpected error: Attempt to recreate a file for type com.example.$DemoTest$Definition
1 error

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':compileTestJava'.
> Compilation failed; see the compiler error output for details.

* Try:
> Run with --stacktrace option to get the stack trace.
> Run with --info or --debug option to get more log output.
> Run with --scan to get full insights.

* Get more help at https://help.gradle.org

Steps To Reproduce

1. git clone git@github.com:natros/mn-demo.git
2. ./gradlew --console=verbose testClasses
3. gsed 's/"auth"/"auth2"/' -i src/main/java/com/example/ApiConfiguration.java
4. ./gradlew --console=verbose testClasses

Environment Information

• macOS BigSur
• java --version
  openjdk 17.0.1 2021-10-19 LTS
  OpenJDK Runtime Environment Zulu17.30+15-CA (build 17.0.1+12-LTS)
  OpenJDK 64-Bit Server VM Zulu17.30+15-CA (build 17.0.1+12-LTS, mixed mode, sharing)
• gradle 7.3

Example Application

https://github.com/natros/mn-demo

Version

3.1.4

[graemerocher]

This looks like another Gradle 7.3 incremental compilation bug. /cc @melix

Workaround is to use 7.2

[melix]

mmm, that's strange, could it be that the fix @oehme worked on didn't make it into 7.3?

[graemerocher]

Seems it did but this is a different case? gradle/gradle#18840

[oehme]

I'll have a look.

[oehme]

@natros I've verified my fix with your sample. Can you check out gradle/gradle#19067, run gradle install and let me know whether this fixes your real project?

[natros]

@oehme I can confirm it works.

Thanks for the quick fix.

[natros]

Hello @oehme

I come across a new case that took me a long time to reproduce.

Steps

1. git clone git@github.com:natros/nm-demo2.git
2. cd nm-demo2
3. ./compile.sh

Note: with linux edit compile.sh and replace gsed with sed

After a few iterations you should see

> Task :compileJava FAILED
Note: Creating bean classes for 2 type elements
error: Unexpected error: Attempt to recreate a file for type com.example.$ApiFactory$Api0$Definition$Reference
1 error

I'm using gradle with your patch

 gradle --version

------------------------------------------------------------
Gradle 7.4-20211120120447+0000
------------------------------------------------------------

Build time:   2021-11-20 12:04:47 UTC
Revision:     0430712b7a96f22bf0b0c11d7f04e64b67c49867

Kotlin:       1.5.31
Groovy:       3.0.9
Ant:          Apache Ant(TM) version 1.10.11 compiled on July 10 2021
JVM:          17.0.1 (Azul Systems, Inc. 17.0.1+12-LTS)
OS:           Mac OS X 11.5 x86_64

With gradle 7.2 I cannot reproduce de error
With 7.3 I get the error on the first iteration
With 7.4 (compiled with you patch) I get the error after a few iterations

[oehme]

Found and fixed that issue as well, same pull request.

[natros]

Seems to be working 😀

Once again, thank you.