Quarkus: Gradle Jar/main directory issues, 1.7.1.FInal

[GregJohnStewart]

Just updated to the latest (1.7.1.Final) quarkus, and the tests run fine, but when running quarkusDev I get the following output, and no running server:

> Task :WebServer:Server:quarkusDev
Listening for transport dt_socket at address: 5005
Exception in thread "main" java.lang.RuntimeException: java.lang.RuntimeException: java.lang.RuntimeException: java.io.UncheckedIOException: Error while reading file as JAR: /home/gstewart/GitRepos/task-timekeeper/WebServer/WebLibrary/build/resources/main
        at io.quarkus.deployment.dev.DevModeMain.start(DevModeMain.java:150)
        at io.quarkus.deployment.dev.DevModeMain.main(DevModeMain.java:63)
Caused by: java.lang.RuntimeException: java.lang.RuntimeException: java.io.UncheckedIOException: Error while reading file as JAR: /home/gstewart/GitRepos/task-timekeeper/WebServer/WebLibrary/build/resources/main
        at io.quarkus.bootstrap.app.CuratedApplication.runInCl(CuratedApplication.java:135)
        at io.quarkus.bootstrap.app.CuratedApplication.runInAugmentClassLoader(CuratedApplication.java:85)
        at io.quarkus.deployment.dev.DevModeMain.start(DevModeMain.java:144)
        ... 1 more
Caused by: java.lang.RuntimeException: java.io.UncheckedIOException: Error while reading file as JAR: /home/gstewart/GitRepos/task-timekeeper/WebServer/WebLibrary/build/resources/main
        at io.quarkus.deployment.dev.IsolatedDevModeMain.accept(IsolatedDevModeMain.java:374)
        at io.quarkus.deployment.dev.IsolatedDevModeMain.accept(IsolatedDevModeMain.java:51)
        at io.quarkus.bootstrap.app.CuratedApplication.runInCl(CuratedApplication.java:132)
        ... 3 more
Caused by: java.io.UncheckedIOException: Error while reading file as JAR: /home/gstewart/GitRepos/task-timekeeper/WebServer/WebLibrary/build/resources/main
        at io.quarkus.bootstrap.classloading.JarClassPathElement.<init>(JarClassPathElement.java:46)
        at io.quarkus.bootstrap.classloading.ClassPathElement.fromPath(ClassPathElement.java:51)
        at io.quarkus.bootstrap.app.CuratedApplication.createDeploymentClassLoader(CuratedApplication.java:265)
        at io.quarkus.deployment.dev.IsolatedDevModeMain.accept(IsolatedDevModeMain.java:330)
        ... 5 more
Caused by: java.io.FileNotFoundException: /home/gstewart/GitRepos/task-timekeeper/WebServer/WebLibrary/build/resources/main (No such file or directory)
        at java.util.zip.ZipFile.open(Native Method)
        at java.util.zip.ZipFile.<init>(ZipFile.java:225)
        at java.util.zip.ZipFile.<init>(ZipFile.java:155)
        at java.util.jar.JarFile.<init>(JarFile.java:166)
        at java.util.jar.JarFile.<init>(JarFile.java:130)
        at io.smallrye.common.io.jar.JarFiles.create(JarFiles.java:34)
        at io.quarkus.bootstrap.classloading.JarClassPathElement.<init>(JarClassPathElement.java:44)
        ... 8 more
<============-> 98% EXECUTING [48s]
> :WebServer:Server:quarkusDev

Runs fine on 1.6.1.Final. Let me know what else would be good to put here as far as output.

[quarkusbot]

/cc @quarkusio/devtools, @glefloch

[glefloch]

@GregJohnStewart do you have a small reproducer?

[acgray]

@glefloch I also experienced this - it seems to occur when there is a submodule with an empty resources folder.

Here's a repro:

https://github.com/acgray/quarkus-issue-11725

(An empty folder can't be committed so you will have to run mkdir common/src/main/resources then gradle build)

[Meemaw]

I've also experienced this on gradle multi project 👍 Reproducer was kindly provided above, but if its not enough I can provide one as well later.

[glefloch]

@Meemaw can you push your project? I tried @acgray project and I'm not able to reproduce the issue.
I tried running ./gradlew :webserver:quarkusDev and accessing localhost:8080/hello works.

[acgray]

@glefloch did you create the empty common/src/main/resources directory before running quarkusDev?

[glefloch]

@acgray right, after creating the empty folder, I can see the error

[pipinet]

still existing... in version 1.7.3.Final

[acgray]

Still getting this in 1.8.1.Final too

[aloubyansky]

@acgray is the same reproducer you provided above failing? Thanks.

[aloubyansky]

@acgray please create a new issue to track it. Thanks.

[encodeering]

I can also see this in 1.8.3 in a multi module gradle project. It seems that an _existing_ but _empty_ src/main/resources directory is not materialized to build/resources/main, leading to this exception.

My current work around is to define at least one file within src/main/resources in every submodule of the project. Hope this might help in the meantime.

[dalgarins]

https://github.com/quarkusio/quarkus/issues/11725#issuecomment-707775798 this solution works for me.

[aloubyansky]

Is there an open issue the mentioned workaround is avoiding? If not, somebody please open one with a reproducer, if you want it to be fixed sooner. Thanks!

[huw0]

Here is a reproducer for this issue: https://github.com/huw0/quarkus-11725-reproducer

• Without any src/main/resources the error does not occur
• Therefore it is necessary to create the empty folder src/main/resources. If this was committed with a .gitkeep then the folder is no longer empty so the error does not occur.

Stacktrace is identical to the original post.

[aloubyansky]

Thanks @huw0 #13087 fixes your reproducer.