diff --git a/src/main/java/org/gcube/dataanalysis/ecoengine/interfaces/StandardLocalInfraAlgorithm.java b/src/main/java/org/gcube/dataanalysis/ecoengine/interfaces/StandardLocalInfraAlgorithm.java
index d51391e..3e53f93 100644
--- a/src/main/java/org/gcube/dataanalysis/ecoengine/interfaces/StandardLocalInfraAlgorithm.java
+++ b/src/main/java/org/gcube/dataanalysis/ecoengine/interfaces/StandardLocalInfraAlgorithm.java
@@ -19,7 +19,7 @@ import org.slf4j.LoggerFactory;
 
 public abstract class StandardLocalInfraAlgorithm extends StandardLocalExternalAlgorithm {
 
-	private Logger LOGGER = LoggerFactory.getLogger(StandardLocalInfraAlgorithm.class);
+	private static final Logger LOGGER = LoggerFactory.getLogger(StandardLocalInfraAlgorithm.class);
 	
 	private static final String SEND_MESSAGE_METHOD ="/messages/write-message";
 		
@@ -53,9 +53,8 @@ public abstract class StandardLocalInfraAlgorithm extends StandardLocalExternalA
 		//String jsonRequest = String.format("{\"subject\":\"%s\", \"body\":\"%s\", \"recipients\":[{\"id\":\"%s\"}]}",subject,body, email);
 
 		putMessage.setRequestEntity(new StringRequestEntity(obj.toJSONString(), "application/json" , "UTF-8"));
-
 		LOGGER.debug("json request is {}", obj.toJSONString());
-
+		
 		HttpClient httpClient = new HttpClient();
 
 		int returnedStatus = -1;