rem: if ( !this.components || (this.components.length > 0)) { 
add: if ( this.components && this.components.length > 0) { 
context:     calculateBounds: function() {        this.bounds = null;        if ( !this.components || (this.components.length > 0)) {            this.setBounds(this.components[0].getBounds());            for (var i = 1; i < this.components.length; i++) {                this.extendBounds(this.components[i].getBounds());            }        }    },
meta: 1027	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/1027/59e40989b71c3ba5a74df2a210322905c7eecc9b/Collection.js/buggy/lib/OpenLayers/Geometry/Collection.js