rem: this.mCache = {}; 
add: this.mCache = null; 
context: function calCalendarManager() {    this.wrappedJSObject = this;    this.initDB();    this.mCache = {};    this.mRefreshTimer = null;    this.setUpPrefObservers();    this.setUpReadOnlyObservers();    this.setUpRefreshTimer();}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/9421/e55773b0062e44e9ed5bbfac4da8adfcf823dcc8/calCalendarManager.js/buggy/calendar/base/src/calCalendarManager.js