quarkus-config-yaml: Regression since Quarkus 2.7.0.Final

[mschorsch]

Describe the bug

Since Quarkus 2.7.0.Final the following application.yaml produces a failure:

api:
  endpoints:
    "/hello/[0-9]+":
      enabled: true
    "/hello/abc":
      enabled: false

Expected behavior

No response

Actual behavior

ERROR [io.qua.dep.dev.IsolatedDevModeMain] (main) Failed to start quarkus: java.lang.RuntimeException: java.lang.RuntimeException: Failed to start quarkus
	at io.quarkus.dev.appstate.ApplicationStateNotification.waitForApplicationStart(ApplicationStateNotification.java:51)
	at io.quarkus.runner.bootstrap.StartupActionImpl.runMainClass(StartupActionImpl.java:122)
	at io.quarkus.deployment.dev.IsolatedDevModeMain.firstStart(IsolatedDevModeMain.java:145)
	at io.quarkus.deployment.dev.IsolatedDevModeMain.accept(IsolatedDevModeMain.java:456)
	at io.quarkus.deployment.dev.IsolatedDevModeMain.accept(IsolatedDevModeMain.java:67)
	at io.quarkus.bootstrap.app.CuratedApplication.runInCl(CuratedApplication.java:150)
	at io.quarkus.bootstrap.app.CuratedApplication.runInAugmentClassLoader(CuratedApplication.java:106)
	at io.quarkus.deployment.dev.DevModeMain.start(DevModeMain.java:132)
	at io.quarkus.deployment.dev.DevModeMain.main(DevModeMain.java:62)
Caused by: java.lang.RuntimeException: Failed to start quarkus
	at io.quarkus.runner.ApplicationImpl.doStart(Unknown Source)
	at io.quarkus.runtime.Application.start(Application.java:101)
	at io.quarkus.runtime.ApplicationLifecycleManager.run(ApplicationLifecycleManager.java:104)
	at io.quarkus.runtime.Quarkus.run(Quarkus.java:67)
	at io.quarkus.runtime.Quarkus.run(Quarkus.java:41)
	at io.quarkus.runtime.Quarkus.run(Quarkus.java:120)
	at io.quarkus.runner.GeneratedMain.main(Unknown Source)
	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 io.quarkus.runner.bootstrap.StartupActionImpl$1.run(StartupActionImpl.java:103)
	at java.base/java.lang.Thread.run(Thread.java:829)
Caused by: java.lang.IllegalStateException: io.smallrye.config.ConfigValidationException: Configuration validation failed:
	java.util.NoSuchElementException: SRCFG00014: The config property enabled is required but it could not be found in any config source
	at io.smallrye.config.SmallRyeConfigBuilder.build(SmallRyeConfigBuilder.java:453)
	at io.quarkus.runtime.generated.Config.readConfig(Unknown Source)
	at io.quarkus.deployment.steps.RuntimeConfigSetup.deploy(Unknown Source)
	... 13 more
Caused by: io.smallrye.config.ConfigValidationException: Configuration validation failed:
	java.util.NoSuchElementException: SRCFG00014: The config property enabled is required but it could not be found in any config source
	at io.smallrye.config.ConfigMappingProvider.mapConfiguration(ConfigMappingProvider.java:882)
	at io.smallrye.config.ConfigMappingProvider.mapConfiguration(ConfigMappingProvider.java:838)
	at io.smallrye.config.SmallRyeConfigBuilder.build(SmallRyeConfigBuilder.java:450)
	... 15 more

How to Reproduce?

reproducer.zip

Output of uname -a or ver

No response

Output of java -version

Java 11

GraalVM version (if different from Java)

No response

Quarkus version or git rev

Quarkus 2.7.0.Final

Build tool (ie. output of mvnw --version or gradlew --version)

Maven

Additional information

No response

[gsmet]

@radcortez could you have a look?

[radcortez]

Sure.

[radcortez]

In this particular case, due to the indexed properties support, the square brackets are reserved to represent collections, but because of smallrye/smallrye-config#682, it kinda worked.

My recommendation is to avoid using square brackets in the property's name, although I'm preparing a PR to support them in key map names.