Index: branches/5.1.x/core/units/general/libchart/classes/model/XYSeriesDataSet.php
===================================================================
diff -u -N -r12127 -r12657
--- branches/5.1.x/core/units/general/libchart/classes/model/XYSeriesDataSet.php	(.../XYSeriesDataSet.php)	(revision 12127)
+++ branches/5.1.x/core/units/general/libchart/classes/model/XYSeriesDataSet.php	(.../XYSeriesDataSet.php)	(revision 12657)
@@ -17,6 +17,8 @@
 	 *
 	 */
 
+	defined('FULL_PATH') or die('restricted access!');
+
 	/**
 	 * This dataset comprises several series of points and is used to plot multiple lines charts.
 	 * Each serie is a XYDataSet.
@@ -72,5 +74,4 @@
 		public function getSerieList() {
 			return $this->serieList;
 		}
-	}
-?>
\ No newline at end of file
+	}
\ No newline at end of file