rem: this.line.destroy(); 
add: if(this.line) { this.line.destroy(); } 
context:     destroyFeature: function() {        OpenLayers.Handler.Point.prototype.destroyFeature.apply(this);        this.line.destroy();        this.line = null;    },
meta: 1027	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/1027/7881c2099aa9f0e544d1d01411448d24c1b43694/Path.js/buggy/lib/OpenLayers/Handler/Path.js