import org.gradle.tooling.internal.protocol.events.InternalTaskWithExtraInfoDescriptor;

import java.io.Serializable;
import java.util.Set;

public class DefaultTaskDescriptor implements Serializable, InternalTaskWithExtraInfoDescriptor {

    private final OperationIdentifier id;
    private final String taskIdentityPath;
    private final String displayName;

        DefaultTaskDescriptor descriptor = new DefaultTaskDescriptor(id, taskIdentityPath, taskPath, displayName, parent, dependencies, originPlugin);
        DefaultTaskDescriptor descriptorWithoutDependencies = new DefaultTaskDescriptor(id, taskIdentityPath, taskPath, displayName, parent, emptySet(), originPlugin);

    private DefaultTaskFinishedProgressEvent taskFinishEvent() {
        new DefaultTaskFinishedProgressEvent(123L, Stub(DefaultTaskDescriptor), Stub(DefaultTaskSuccessResult))
    }

    private DefaultTaskFinishedProgressEvent failedTaskFinishEvent() {
        new DefaultTaskFinishedProgressEvent(123L, Stub(DefaultTaskDescriptor), Stub(DefaultTaskFailureResult))
    }

    private DefaultTaskFinishedProgressEvent skippedTaskFinishEvent() {

import org.gradle.tooling.internal.protocol.events.InternalOperationStartedProgressEvent;

public class DefaultTaskStartedProgressEvent extends AbstractProgressEvent<DefaultTaskDescriptor> implements InternalOperationStartedProgressEvent {
    public DefaultTaskStartedProgressEvent(long eventTime, DefaultTaskDescriptor descriptor) {
        super(eventTime, descriptor);
    }

    @Override
    public String getDisplayName() {

public class DefaultTaskFinishedProgressEvent extends AbstractProgressEvent<DefaultTaskDescriptor> implements InternalOperationFinishedProgressEvent {
    private final AbstractTaskResult result;

    public DefaultTaskFinishedProgressEvent(long eventTime, DefaultTaskDescriptor descriptor, AbstractTaskResult result) {
        super(eventTime, descriptor);
        this.result = result;
    }

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