code: public static void load( InputStream in ) throws IOException {
          if( in != null ) {
              prp.load( in );
          }
          try {
              prp.putAll( (java.util.Map)System.getProperties().clone() );
          } catch( SecurityException se ) {
              if( log.level > 1 )
                  log.println( "SecurityException: jcifs will ignore System properties" );
          }
      }
docs: Load the <code>Config</code> with properties from the stream
  <code>in</code> from a <code>Properties</code> file.