X-Git-Url: https://git.hedgecode.org/?p=snooker-score-api.git;a=blobdiff_plain;f=src%2Fmain%2Fjava%2Forg%2Fhedgecode%2Fsnooker%2Fjson%2FJsonRankings.java;h=ac0a1ae77630eb4db832ce94a6b7a215f2c49bfb;hp=75a33587cb783392f3e2f2ba6149f82a0dd38e4b;hb=edb206228987f506c5dc7a20585537b71f7a2e9d;hpb=20a8093246c9bb7def0c07a03bceff6f31412f35

diff --git a/src/main/java/org/hedgecode/snooker/json/JsonRankings.java b/src/main/java/org/hedgecode/snooker/json/JsonRankings.java
index 75a3358..ac0a1ae 100644
--- a/src/main/java/org/hedgecode/snooker/json/JsonRankings.java
+++ b/src/main/java/org/hedgecode/snooker/json/JsonRankings.java
@@ -30,6 +30,8 @@ import org.hedgecode.snooker.compare.RankingComparators;
  */
 public class JsonRankings extends JsonCollectionEntity<Ranking> implements Rankings {
 
+    private static final JsonRankings EMPTY = new JsonRankings(new Ranking[0]);
+
     protected JsonRankings(Ranking[] entities) {
         super(entities);
     }
@@ -52,7 +54,7 @@ public class JsonRankings extends JsonCollectionEntity<Ranking> implements Ranki
         for (Ranking ranking : this)
             if (ranking.sum() >= minSum && ranking.sum() <= maxSum)
                 rankings.add(ranking);
-        return rankings.isEmpty() ? null : new JsonRankings(rankings);
+        return rankings.isEmpty() ? EMPTY : new JsonRankings(rankings);
     }
 
     @Override
@@ -68,4 +70,5 @@ public class JsonRankings extends JsonCollectionEntity<Ranking> implements Ranki
                 RankingComparators.SUM.comparator()
         );
     }
+
 }