gradle-master/subprojects/docs/src/snippets/plugins/propertyServiceInjection/groovy/buildSrc/src/main/java/Download.java
import javax.inject.Inject;
import org.gradle.api.model.ObjectFactory;
import org.gradle.api.DefaultTask;
import org.gradle.api.tasks.TaskAction;
import org.gradle.workers.WorkerExecutor;

// tag::download[]
public abstract class Download extends DefaultTask {
    // Use an abstract getter method
    @Inject
    protected abstract ObjectFactory getObjectFactory();

    // Alternatively, use a getter method with a dummy implementation
    @Inject
    protected WorkerExecutor getWorkerExecutor() {
        // Method body is ignored
        throw new UnsupportedOperationException();
    }

    @TaskAction
    void run() {
        WorkerExecutor workerExecutor = getWorkerExecutor();
        ObjectFactory objectFactory = getObjectFactory();
        // Use the executor and factory ...
    }
}
// end::download[]
