public int hashCode() {
    int result;
    result = (delegateBuildToMaven ? 1 : 0);
    result = 31 * result + jreName.hashCode();
    result = 31 * result + vmOptions.hashCode();
    result = 31 * result + (skipTests ? 1 : 0);
    result = 31 * result + environmentProperties.hashCode();
    result = 31 * result + (mavenProperties != null ? mavenProperties.hashCode() : 0);
    return result;
  }
public int hashCode()