rem: return entry 
add: return entry; 
context:     findEntry: function(key){      for (var i=0;i<this.keys.length;i++){        var entry = this.keys[i];        if (entry instanceof NullKey) continue;        if (entry.key == key){            return entry        }      }      return null;    },
meta: 2141	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/2141/1ca0a2b5359ccfa2da0a198ae4cb68347ec55d2e/log4js.js/clean/src/js/log4js.js