introduced fields for RankingMetric subclass constructors to avoid class loader issues in test fragments

java/com.sap.sailing.domain/src/com/sap/sailing/domain/ranking/ORCPerformanceCurveRankingMetric.java

@@ -18,6 +18,8 @@ import com.sap.sse.common.TimePoint;
 public class ORCPerformanceCurveRankingMetric extends AbstractRankingMetric {
     private static final long serialVersionUID = -7814822523533929816L;
 
+    public final static RankingMetricConstructor CONSTRUCTOR = ORCPerformanceCurveRankingMetric::new;
+
     public ORCPerformanceCurveRankingMetric(TrackedRace trackedRace) {
         super(trackedRace);
     }

java/com.sap.sailing.domain/src/com/sap/sailing/domain/ranking/OneDesignRankingMetric.java

@@ -21,6 +21,8 @@ import com.sap.sse.common.TimePoint;
 
 public class OneDesignRankingMetric extends AbstractRankingMetric {
     private static final long serialVersionUID = -8141113385324184349L;
+    
+    public final static RankingMetricConstructor CONSTRUCTOR = OneDesignRankingMetric::new;
 
     public OneDesignRankingMetric(TrackedRace trackedRace) {
         super(trackedRace);

java/com.sap.sailing.domain/src/com/sap/sailing/domain/ranking/TimeOnTimeAndDistanceRankingMetric.java

@@ -53,6 +53,8 @@ import com.sap.sse.common.impl.MillisecondsDurationImpl;
 public class TimeOnTimeAndDistanceRankingMetric extends AbstractRankingMetric {
     private static final long serialVersionUID = -2321904208518686420L;
 
+    public final static RankingMetricConstructor CONSTRUCTOR = TimeOnTimeAndDistanceRankingMetric::new;
+
     private final Function<Competitor, Double> timeOnTimeFactor;
 
     private final Function<Competitor, Duration> timeOnDistanceFactorNauticalMile;