Fixed ordering of object properties on JSONB columns

Author: hylkevds

FROST-Server.SQLjooq/src/main/java/de/fraunhofer/iosb/ilt/frostserver/persistence/pgjooq/bindings/JsonValue.java

@@ -64,7 +64,7 @@ public Object getValue() {
     }
 
     public Map<String, Object> getMapValue() {
-        return getValue(Utils.TYPE_MAP_STRING_OBJECT);
+        return getValue(Utils.TYPE_SORTED_MAP_STRING_OBJECT);
     }
 
     public <T> T getValue(TypeReference<T> typeReference) {

FROST-Server.SQLjooq/src/main/java/de/fraunhofer/iosb/ilt/frostserver/persistence/pgjooq/utils/Utils.java

@@ -35,6 +35,7 @@
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Map;
+import java.util.TreeMap;
 import net.time4j.Moment;
 import org.geolatte.common.dataformats.json.jackson.JsonMapper;
 import org.jooq.Field;
@@ -67,6 +68,10 @@ public class Utils {
         // Empty on purpose.
     };
 
+    public static final TypeReference<TreeMap<String, Object>> TYPE_SORTED_MAP_STRING_OBJECT = new TypeReference<TreeMap<String, Object>>() {
+        // Empty on purpose.
+    };
+
     /**
      * The logger for this class.
      */