Config property expects to have hyphen before digit

[mannukalra]

Describe the bug

While trying to update Quarkus from 3.2.9.Final to 3.6 onwards have come across following issue related to config-
Config property expects to have hyphen before digit,
Example in config java file-

public interface ParenttConfig {
  interface Id {
          String id();
  }
  interface XChannels {
          Id acrossB2b();
  }
  ..........
}

config yaml-

parentt:
    x-channels:
        across-b2b:
            val: xxxxxx

throws an exception on start-up

java.util.NoSuchElementException: SRCFG00014: The config property parentt.x-channels.across-b-2b.val is required but it could not be found in any config source

Expected behavior

'acrossB2b' in java should be accepted as 'across-b2b' from yaml.

Actual behavior

'acrossB2b' in java is expecting to have 'across-b-2b' from yaml.

How to Reproduce?

Custom Yaml config file with a number in the key name, occurs on application start-up.

Output of uname -a or ver

No response

Output of java -version

17.0.7

Quarkus version or git rev

3.6.0

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

mvn 3.8.4

Additional information

No response

[geoand]

cc @radcortez

[mannukalra]

Thanks for the prompt actions, if possible please help with the expected release date for 3.7.2?

[radcortez]

We may still be a few days away.

To move forward, you can manually update the SmallRye Config version, which fixes the issue:

<dependency>
  <groupId>io.smallrye.config</groupId>
  <artifactId>smallrye-config-common</artifactId>
  <version>3.5.4</version>
</dependency>
<dependency>
  <groupId>io.smallrye.config</groupId>
  <artifactId>smallrye-config-core</artifactId>
  <version>3.5.4</version>
</dependency>

[gsmet]

3.7.2 will be released today if the release gods are with us.