Getting CWWKF0044E incompatible feature error using Open Liberty with Maven, but I didn't configure incompatible features

Question

When using Open Liberty version 22.0.0.5 and liberty-maven-plugin version 3.3 with a server config (server.xml) configuring just a single feature:

    <featureManager>
        <feature>batch-2.0</feature>
    </featureManager>

and running "dev mode" (via mvn liberty:dev), I get this error as dev mode starts the server:

[INFO] [ERROR ] CWWKF0044E: The io.openliberty.connectionManager1.0.internal.ee-6.0 and batch-2.0 features cannot be loaded at the same time. The io.openliberty.connectionManager1.0.internal.ee-6.0 feature of Java EE 6 is incompatible with the batch-2.0 feature of Jakarta EE 9. The batch-2.0 and batch-2.0 configured features include an incompatible combination of features. Your configuration is not supported. Update the configuration to use features that support either the Java EE or Jakarta EE programming models, but not both.

[INFO] [WARNING ] CWWKF0046W: The configuration includes an incompatible combination of features. As a result, the feature manager did not install any features.

Answer 1

SOLUTION

This is a bug. To resolve, update liberty-maven-plugin to the latest version (or at least to version 3.4, where this was fixed).

The bug is described here from the runtime angle, as it was an issue with the way the liberty-maven-plugin queries the Open Liberty runtime for feature versions.