code: public void setClassifiers(java.util.Collection<String> classifiers) {
          if (classifiers == null) {
              this.classifiers = null;
              return;
          }
  
          this.classifiers = new java.util.ArrayList<String>(classifiers);
      }
docs: <p>
  A list of custom classifiers that the user has registered. By default, all built-in classifiers are included in a
  crawl, but these custom classifiers always override the default classifiers for a given classification.
  </p>
  
  @param classifiers
  A list of custom classifiers that the user has registered. By default, all built-in classifiers are
  included in a crawl, but these custom classifiers always override the default classifiers for a given
  classification.