4.x - OidcCdiExtension should not require configuration

[romain-grecourt]

Environment Details

• Helidon Version: 4.0.6
• Helidon MP

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Problem Description

If you have io.helidon.microprofile:helidon-microprofile-oidc in your class-path, it should only activate if the required configuration is present.

Currently (4.0.6), if there is no security configuration the server startup fails:

Exception in thread "main" io.helidon.config.MissingValueException: Requested value for configuration key '' is not present in the configuration.
	at io.helidon.config.MissingValueException.create(MissingValueException.java:44)
	at io.helidon.config.ConfigValue.lambda$get$0(ConfigValue.java:93)
	at java.base/java.util.Optional.orElseThrow(Optional.java:403)
	at io.helidon.config.ConfigValue.get(ConfigValue.java:93)
	at io.helidon.security.providers.oidc.OidcFeature$Builder.findMyKey(OidcFeature.java:657)
	at io.helidon.security.providers.oidc.OidcFeature$Builder.config(OidcFeature.java:715)
	at io.helidon.security.providers.oidc.OidcFeature.create(OidcFeature.java:209)
	at io.helidon.microprofile.oidc.OidcCdiExtension.registerOidcSupport(OidcCdiExtension.java:48)
	at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
	at java.base/java.lang.reflect.Method.invoke(Method.java:580)

Steps to reproduce

Add the following dependency to your pom.xml, make sure there is no security configuration.

<dependency>
    <groupId>io.helidon.microprofile</groupId>
    <artifactId>helidon-microprofile-oidc</artifactId>
</dependency>

[romain-grecourt]

@tomas-langer please confirm if this is fixed with the changes made for these:

• 4.x: Support for disabling security providers through configuration. #8521
• 4.x: Disabled OidcFeature no longer throws an NPE. #8520

[tomas-langer]

You need to add enabled: false, otherwise this will most likely still fail (would need to test it to be sure)