public boolean isDefinedInEnv(){
  if (envVars == null || paramNames.length == 0) {
    return false;
  }
  for (  String var : envVars) {
    if (System.getenv(var) == null) {
      return false;
    }
  }
  return true;
}

public boolean isDefinedInEnv ( ) { if ( envVars == null || paramNames . length == 0 ) { return false ; } for ( String var : envVars ) { if ( System . getenv ( var ) == null ) { return false ; } } return true ; }
determines if the argument provisioning has been done via the environment .
