code: private List<JawrConfigManagerMBean> getInitializedConfigurationManagers() {
  
  		final List<JawrConfigManagerMBean> mBeans = new ArrayList<>();
  		if (jsMBean != null) {
  			mBeans.add(jsMBean);
  		}
  
  		if (cssMBean != null) {
  			mBeans.add(cssMBean);
  		}
  		if (binaryMBean != null) {
  			mBeans.add(binaryMBean);
  		}
  
  		return mBeans;
  	}
docs: Returns the list of initialized configuration managers.
  
  @return the list of initialized configuration managers.