rem: if (!self.isOpened()) 
add: if (self.isOpened()) 
context:    this.list = function() {      if (!self.isOpened())         return null;      if (!file.isDirectory())         return null;      return file.list();      };
meta: 993	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/993/eaa057332957baad23a0cf0a616960f0657d908d/Helma.js/clean/code/Global/Helma.js