operator/src/main/java/oracle/kubernetes/weblogic/domain/model/DomainSpec.java
boolean isIstioEnabled() {
    return Optional.ofNullable(configuration)
        .map(Configuration::getIstio)
        .map(Istio::getEnabled)
        .orElse(false);
  }
/**
   * Test if the domain is deployed under Istio environment.
   *
   * @return istioEnabled
   */
Test if the domain is deployed under Istio environment.
@return istioEnabled
Test if the domain is deployed under Istio environment . @return istioEnabled
boolean isIstioEnabled() {
    return Optional.ofNullable(configuration)
        .map(Configuration::getIstio)
        .map(Istio::getEnabled)
        .orElse(false);
  }
boolean isIstioEnabled ( ) { return Optional . ofNullable ( configuration ) . map ( Configuration :: getIstio ) . map ( Istio :: getEnabled ) . orElse ( false ) ; }
Test if the domain is deployed under Istio environment.
Test if the domain is deployed under Istio environment .