Grails 5.2 app with Micronaut beans will not run with embedded Tomcat

[JasonTypesCodes]

Expected Behavior

The application should start

Actual Behaviour

The application fails with:

java.nio.file.ProviderNotFoundException: null
        at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
        at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:490)
        at java.base/java.util.concurrent.ForkJoinTask.getThrowableException(ForkJoinTask.java:603)
        at java.base/java.util.concurrent.ForkJoinTask.reportException(ForkJoinTask.java:678)
        at java.base/java.util.concurrent.ForkJoinTask.join(ForkJoinTask.java:722)
        at io.micronaut.core.io.service.SoftServiceLoader$DefaultServiceCollector.collect(SoftServiceLoader.java:536)
        at io.micronaut.core.io.service.SoftServiceLoader.collectDynamicServices(SoftServiceLoader.java:199)
        at io.micronaut.core.io.service.SoftServiceLoader.collectAll(SoftServiceLoader.java:175)
        at io.micronaut.context.DefaultBeanContext.resolveBeanDefinitionReferences(DefaultBeanContext.java:1732)
        at io.micronaut.context.DefaultApplicationContext.isBootstrapPropertySourceLocatorPresent(DefaultApplicationContext.java:153)
        at io.micronaut.context.DefaultApplicationContext.isBootstrapEnabled(DefaultApplicationContext.java:149)
        at io.micronaut.context.DefaultApplicationContext.createEnvironment(DefaultApplicationContext.java:137)
        at io.micronaut.context.DefaultApplicationContext.getEnvironment(DefaultApplicationContext.java:181)
        at grails.boot.GrailsApp.createApplicationContext(GrailsApp.groovy:181)
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:305)
        at grails.boot.GrailsApp.run(GrailsApp.groovy:99)
        at grails.boot.GrailsApp.run(GrailsApp.groovy:485)
        at grails.boot.GrailsApp.run(GrailsApp.groovy:472)
        at gr52.mn.bug.Application.main(Application.groovy:11)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.base/java.lang.reflect.Method.invoke(Method.java:566)
        at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:49)
        at org.springframework.boot.loader.Launcher.launch(Launcher.java:108)
        at org.springframework.boot.loader.Launcher.launch(Launcher.java:58)
        at org.springframework.boot.loader.WarLauncher.main(WarLauncher.java:59)
Caused by: java.nio.file.ProviderNotFoundException: Provider not found
        at java.base/java.nio.file.FileSystems.newFileSystem(FileSystems.java:423)
        at io.micronaut.core.io.IOUtils.loadNestedJarUri(IOUtils.java:153)
        at io.micronaut.core.io.IOUtils.eachFile(IOUtils.java:99)
        at io.micronaut.core.io.service.SoftServiceLoader.computeServiceTypeNames(SoftServiceLoader.java:277)
        at io.micronaut.core.io.service.SoftServiceLoader.access$1100(SoftServiceLoader.java:68)
        at io.micronaut.core.io.service.SoftServiceLoader$MicronautMetaServicesLoader.compute(SoftServiceLoader.java:565)
        at java.base/java.util.concurrent.RecursiveAction.exec(RecursiveAction.java:189)
        at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:290)
        at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1020)
        at java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1656)
        at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1594)
        at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:183)

Steps To Reproduce

1. Create new Grails 5.2.1 application
2. ./gradlew bootWar
3. java -jar build/libs/gr52-mn-bug-0.1.war
4. Application Starts
5. Add a Micronaut bean
6. ./gradlew clean bootWar
7. java -jar build/libs/gr52-mn-bug-0.1.war
8. Observe the exception above

Environment Information

• Debian 11
• Grails 5.2.1
• openjdk version "11.0.12" 2021-07-20

Example Application

https://github.com/JasonTypesCodes/gr52-mn-bug

Version

5.2.1

[puneetbehl]

I worked with @yawkat today and it seems the problem is with Spring Boot LaunchedUrlClassLoader where it tried to load resource as following:
jar:file:/private/tmp/testmn/build/libs/testmn-0.1.jar!/BOOT-INF/classes!/META-INF/micronaut/io.micronaut.inject.BeanDefinitionReference

Please note the extra ! after classes which seems weird but I am not sure whether it is intentional or NOT, we are handling this special case in the Micronaut IOUtils class.

[JasonTypesCodes]

Confirmed the fix in 5.2.2