rem: this.loggingEvents = []; this.onclear.dispatch(); 
add: try{ this.loggingEvents = []; this.onclear.dispatch(); } catch(e){} 
context: 	clear : function () {		this.loggingEvents = [];		this.onclear.dispatch();	},
meta: 2141	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/2141/1ca0a2b5359ccfa2da0a198ae4cb68347ec55d2e/log4js.js/clean/src/js/log4js.js