import org.gradle.tooling.internal.protocol.events.InternalProblemDescriptor;
import org.gradle.tooling.internal.protocol.problem.InternalProblemDetailsVersion2;

@NonNullApi
public class DefaultProblemEvent extends AbstractProgressEvent<InternalProblemDescriptor> implements InternalProblemEventVersion2 {
    private final InternalProblemDetailsVersion2 details;

    public DefaultProblemEvent(
        InternalProblemDescriptor descriptor,

# Adding new progress event

* project `build-events`
  * `org.gradle.internal.build.event.types` 
     * `public class Default*Event extends AbstractProgressEvent<Internal*Descriptor> implements Serializable, Internal*Event`
     * `public class Default*Descriptor implements Serializable, Internal*Descriptor`
* project `tooling-api`
  * `org.gradle.tooling.internal.protocol`

Class <org.gradle.internal.build.event.types.AbstractProgressEvent> is not annotated (directly or via its package) with @org.gradle.api.NonNullApi in (AbstractProgressEvent.java:0)