JsonCodec added

src/main/java/com/lambdaworks/redis/codec/JsonCodec.java

@@ -11,6 +11,7 @@ import com.fasterxml.jackson.databind.ObjectMapper.DefaultTypeResolverBuilder;
 import com.fasterxml.jackson.annotation.*;
 import com.fasterxml.jackson.annotation.JsonInclude.Include;
 import com.fasterxml.jackson.databind.DeserializationFeature;
+import com.fasterxml.jackson.databind.MapperFeature;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.fasterxml.jackson.databind.ObjectMapper.DefaultTyping;
 import com.fasterxml.jackson.databind.SerializationFeature;
@@ -25,6 +26,7 @@ public class JsonCodec extends RedisCodec<Object, Object> {
         objectMapper.setSerializationInclusion(Include.NON_NULL);
         objectMapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
         objectMapper.configure(SerializationFeature.WRITE_BIGDECIMAL_AS_PLAIN, true);
+        objectMapper.configure(MapperFeature.SORT_PROPERTIES_ALPHABETICALLY, true);
 
         // type info inclusion
         TypeResolverBuilder<?> typer = new DefaultTypeResolverBuilder(DefaultTyping.NON_FINAL);