--- a/artifacts/src/main/java/org/dive4elements/river/exports/ChartHelper.java	Fri Sep 05 12:54:58 2014 +0200
+++ b/artifacts/src/main/java/org/dive4elements/river/exports/ChartHelper.java	Fri Sep 05 12:58:17 2014 +0200
@@ -27,7 +27,7 @@
  */
 public class ChartHelper {
 
-    private static final Logger logger = Logger.getLogger(ChartHelper.class);
+    private static final Logger log = Logger.getLogger(ChartHelper.class);
 
 
     /**
@@ -42,7 +42,7 @@
         int seriesCount = dataset != null ? dataset.getSeriesCount() : 0;
 
         if (seriesCount == 0) {
-            logger.warn("Dataset is empty or has no Series set.");
+            log.warn("Dataset is empty or has no Series set.");
             return null;
         }
 
@@ -59,7 +59,7 @@
                 double y = dataset.getYValue(i, j);
 
                 if (Double.isNaN(x) || Double.isNaN(y)) {
-                    logger.warn("Item " + j + " in Series " + i + " is broken");
+                    log.warn("Item " + j + " in Series " + i + " is broken");
                     continue;
                 }
 
@@ -99,7 +99,7 @@
             return getBounds((TimeSeriesCollection) dataset);
         }
         else {
-            logger.warn("Unknown XYDataset instance: " + dataset.getClass());
+            log.warn("Unknown XYDataset instance: " + dataset.getClass());
             return null;
         }
     }
@@ -109,7 +109,7 @@
         int seriesCount = collection != null ? collection.getSeriesCount() : 0;
 
         if (seriesCount == 0) {
-            logger.warn("TimeSeriesCollection is empty or has no Series set.");
+            log.warn("TimeSeriesCollection is empty or has no Series set.");
             return null;
         }