Is extending SonarRunner task in org.gradle.sonar.runner.tasks.SonarRunner doable?

Is it possible to extend the SonarRunner class that exist in the following package: org.gradle.sonar.runner.tasks.SonarRunner?. If so, would it be possible to do something as the following: TempPlugin.groovy

import org.gradle.api.Plugin
import org.gradle.api.Project
class TempPlugin implements Plugin<Project> {
      void apply(Project project) {
        project.task('sonarRunnerHelper', type: SonarRunnerHelper,
description: 'Analyzes a project and its subprojects with Sonar Runner')
    }

SonarRunnerHelper.groovy

import java.util.HashMap;
import java.util.Map;
import org.gradle.sonar.runner.tasks.SonarRunner
import org.gradle.api.tasks.TaskAction
import org.gradle.api.tasks.Input
  /**
 * Sonar Runner Helper
 */
class SonarRunnerHelper extends SonarRunner {
      public SonarRunnerHelper() {
        super();
    }
     @Input
     Map<String, Object> tempSonarProperties = getSonarProperties();
      /**
     * Analyzes a project and its subprojects with Sonar Runner
     *
     *
      */
    @Override
    public void run() {
            if (!tempSonarProperties.isEmpty()) {
                for(Map.Entry<String, Object> entry : tempSonarProperties.entrySet()) {
                    super.setProperty(entry.getKey(), entry.getValue());
                }
            }
        }
}

My plan is to use the above code in a standalone project by definining dependencies in a buildscript closure while defining my repositories and dependencies there.