code: public void installFeatures(Collection<String> featureNames, String toExtension, boolean acceptLicense, String userId, String password) throws InstallException {
          installFeatures(featureNames, toExtension, acceptLicense, userId, password, 1);
      }
docs: Installs the specified features
  
  @param featureNames collection of feature names to be installed
  @param toExtension location of a product extension
  @param acceptLicense if license is accepted
  @param userId userId for repository
  @param password password for repository
  @throws InstallException