Bean validation in class annotated with ConfigProperties doesn't work

[Rutzzzz]

I was following the guide for Quarkus configuration - https://quarkus.io/guides/config#using-configproperties. The example with bean validation using class annotated with ConfigProperties doesn't seem to work as no errors are thrown when property violates bean validation annotations.

Expected behavior
An error is displayed when a property in application.properties has value violating bean validation annotation.

Actual behavior
No error is displayed.

To Reproduce

1. Create the project

mvn io.quarkus:quarkus-maven-plugin:1.6.0.Final:create \
    -DprojectGroupId=org.acme \
    -DprojectArtifactId=config-quickstart \
    -DclassName="org.acme.config.GreetingResource" \
    -Dpath="/greeting"
cd config-quickstart

2. Create the configuration class with following content:

@ConfigProperties(prefix = "greeting")
public class GreetingConfiguration {
    @Size(min = 20)
    public String message;
    public String suffix = "!";
}

3. Add the following property to application.properties:

greeting.message = hello

4. Inject the configuration to GreetingResource class

@Inject
GreetingConfiguration greetingConfiguration

5. Output the configuration

@GET
@Produces(MediaType.TEXT_PLAIN)
public String hello() {
     return greetingConfiguration.message + greetingConfiguration.suffix;
}

6. Run the application

./mvnw quarkus:dev

Configuration

greeting.message = hello

Environment:

• Output of uname -a or ver: Linux localhost.localdomain 5.6.13-100.fc30.x86_64 Switch to the Maven distributed copy of the SubstrateVM annotations #1 SMP Fri May 15 00:36:06 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
• Output of java -version:
  openjdk version "11.0.7" 2020-04-14
  OpenJDK Runtime Environment GraalVM CE 20.1.0 (build 11.0.7+10-jvmci-20.1-b02)
  OpenJDK 64-Bit Server VM GraalVM CE 20.1.0 (build 11.0.7+10-jvmci-20.1-b02, mixed mode, sharing)
• Quarkus version: 1.6.0.Final
• Build tool (ie. output of mvnw --version or gradlew --version): Apache Maven 3.6.3 (cecedd343002696d0abb50b32b541b8a6ba2883f)

[geoand]

Hi,

This turns out to be a docs problem. You need to add the quarkus-hibernate-validator extension to make it work. I opened #10854 to fix the docs.