Constanst.setRefValue() was always null

Setting the ref value when constant is an uri to allow implementations
to try load them in case default loading fails

Author: fjtirado

api/src/main/java/io/serverlessworkflow/api/deserializers/ConstantsDeserializer.java

@@ -15,19 +15,22 @@
  */
 package io.serverlessworkflow.api.deserializers;
 
+import java.io.IOException;
+
+import org.json.JSONObject;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
 import com.fasterxml.jackson.core.JsonParser;
 import com.fasterxml.jackson.databind.DeserializationContext;
 import com.fasterxml.jackson.databind.JsonNode;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.fasterxml.jackson.databind.deser.std.StdDeserializer;
 import com.fasterxml.jackson.dataformat.yaml.YAMLFactory;
+
 import io.serverlessworkflow.api.interfaces.WorkflowPropertySource;
 import io.serverlessworkflow.api.utils.Utils;
 import io.serverlessworkflow.api.workflow.Constants;
-import java.io.IOException;
-import org.json.JSONObject;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
 
 public class ConstantsDeserializer extends StdDeserializer<Constants> {
 
@@ -62,6 +65,7 @@ public Constants deserialize(JsonParser jp, DeserializationContext ctxt) throws
       constantsDefinition = node;
     } else {
       String constantsFileDef = node.asText();
+      constants.setRefValue(constantsFileDef);
       String constantsFileSrc = Utils.getResourceFileAsString(constantsFileDef);
       JsonNode constantsRefNode;
       ObjectMapper jsonWriter = new ObjectMapper();