--- a/artifacts/src/main/java/org/dive4elements/river/artifacts/geom/Lines.java	Thu Jan 18 20:10:59 2018 +0100
+++ b/artifacts/src/main/java/org/dive4elements/river/artifacts/geom/Lines.java	Thu Jan 18 20:12:01 2018 +0100
@@ -43,8 +43,10 @@
      * @return area of polygon with four vertices.
      */
     public static double area(Point2D p1, Point2D p2, Point2D p3, Point2D p4) {
-        double[] x = new double[] {p1.getX(), p2.getX(), p3.getX(), p4.getX(), p1.getX() };
-        double[] y = new double[] {p1.getY(), p2.getY(), p3.getY(), p4.getY(), p1.getY() };
+        double[] x = new double[] {
+            p1.getX(), p2.getX(), p3.getX(), p4.getX(), p1.getX() };
+        double[] y = new double[] {
+            p1.getY(), p2.getY(), p3.getY(), p4.getY(), p1.getY() };
         double area = 0d;
         for (int i=0; i <4; i++) {
             area += (x[i] * y[i+1]) - (x[i+1] * y[i]);
@@ -88,8 +90,10 @@
      * @return A list of Lines representing the water surface and the
      *         calculated area between water surface and river bed.
      */
-    public static ListWithArea fillWater(List<Point2D> points, double waterLevel) {
-
+    public static ListWithArea fillWater(
+        List<Point2D> points,
+        double waterLevel
+    ) {
         boolean debug = log.isDebugEnabled();
 
         if (debug) {
@@ -222,7 +226,8 @@
             // TODO trigger area calculation
             if (p1W || p2W) {
                 if (debug) {
-                    log.debug("water hits vertex: " + p1 + " " + p2 + " " + mode);
+                    log.debug("water hits vertex: "
+                        + p1 + " " + p2 + " " + mode);
                 }
                 if (p1W && p2W) { // parallel to water -> dry
                     log.debug("water hits both vertices");