diff --git a/src/main/java/org/gcube/dataanalysis/dataminer/poolmanager/service/DataminerPoolManager.java b/src/main/java/org/gcube/dataanalysis/dataminer/poolmanager/service/DataminerPoolManager.java
index c1784be..91ce431 100644
--- a/src/main/java/org/gcube/dataanalysis/dataminer/poolmanager/service/DataminerPoolManager.java
+++ b/src/main/java/org/gcube/dataanalysis/dataminer/poolmanager/service/DataminerPoolManager.java
@@ -31,9 +31,9 @@ public class DataminerPoolManager ***REMOVED***
 ***REMOVED***Algorithm algo) throws IOException, InterruptedException ***REMOVED***
 
 		Cluster stagingCluster = ClusterBuilder.getStagingDataminerCluster();
-		Cluster rProtoCluster = ClusterBuilder.getRProtoCluster();
+		***REMOVED***Cluster rProtoCluster = ClusterBuilder.getRProtoCluster();
 		
-		DMPMJob job = new StagingJob(this.svnUpdater, algo, stagingCluster, rProtoCluster, ScopeProvider.instance.get());
+		DMPMJob job = new StagingJob(this.svnUpdater, algo, stagingCluster, /*rProtoCluster,*/ ScopeProvider.instance.get());
 		String id = job.start();
 		return id;
 ***REMOVED***
diff --git a/src/main/java/org/gcube/dataanalysis/dataminer/poolmanager/service/StagingJob.java b/src/main/java/org/gcube/dataanalysis/dataminer/poolmanager/service/StagingJob.java
index fd18555..a44951d 100644
--- a/src/main/java/org/gcube/dataanalysis/dataminer/poolmanager/service/StagingJob.java
+++ b/src/main/java/org/gcube/dataanalysis/dataminer/poolmanager/service/StagingJob.java
@@ -19,15 +19,15 @@ public class StagingJob extends DMPMJob ***REMOVED***
 
 	private Algorithm algorithm;
 	private Cluster stagingCluster;
-	private Cluster rProtoCluster;
+	***REMOVED***private Cluster rProtoCluster;
 	private String rProtoVREName;
 
-	public StagingJob(SVNUpdater svnUpdater, Algorithm algorithm, Cluster stagingCluster, Cluster rProtoCluster,
+	public StagingJob(SVNUpdater svnUpdater, Algorithm algorithm, Cluster stagingCluster, /*Cluster rProtoCluster,*/
 			String rProtoVREName) ***REMOVED***
 		super(svnUpdater);
 		this.algorithm = algorithm;
 		this.stagingCluster = stagingCluster;
-		this.rProtoCluster = rProtoCluster;
+		***REMOVED***this.rProtoCluster = rProtoCluster;
 		this.rProtoVREName = rProtoVREName;
 ***REMOVED***
 
diff --git a/src/main/java/org/gcube/dataanalysis/dataminer/poolmanager/util/SendMail.java b/src/main/java/org/gcube/dataanalysis/dataminer/poolmanager/util/SendMail.java
index 1ce14c1..7210e18 100644
--- a/src/main/java/org/gcube/dataanalysis/dataminer/poolmanager/util/SendMail.java
+++ b/src/main/java/org/gcube/dataanalysis/dataminer/poolmanager/util/SendMail.java
@@ -18,7 +18,6 @@ import org.gcube.dataanalysis.executor.util.InfraRetrieval;
 import org.json.JSONArray;
 import org.json.JSONObject;
 
-import com.sun.xml.internal.bind.v2.runtime.unmarshaller.XsiNilLoader.Array;
 
 public class SendMail extends StandardLocalInfraAlgorithm ***REMOVED***
 
@@ -45,7 +44,7 @@ public class SendMail extends StandardLocalInfraAlgorithm ***REMOVED***
 		***REMOVED*** put the sender, the recipients, subject and body of the mail here
 		subject = URLEncoder.encode(subject, "UTF-8");
 		body = URLEncoder.encode(body, "UTF-8");
-		String requestParameters = "&sender=dataminer&recipients=" + /*this.getAdmins()*/this.username(SecurityTokenProvider.instance.get()) + "&subject=" + subject + "&body="
+		String requestParameters = "&sender=dataminer&recipients=" + this.getAdmins()/*this.username(SecurityTokenProvider.instance.get())*/ + "&subject=" + subject + "&body="
 				+ body;
 
 		String response = HttpRequest.sendPostRequest(requestForMessage, requestParameters);
diff --git a/src/test/java/org/gcube/dataanalysis/dataminerpoolmanager/JobTest.java b/src/test/java/org/gcube/dataanalysis/dataminerpoolmanager/JobTest.java
index a920f6b..531f24f 100644
--- a/src/test/java/org/gcube/dataanalysis/dataminerpoolmanager/JobTest.java
+++ b/src/test/java/org/gcube/dataanalysis/dataminerpoolmanager/JobTest.java
@@ -25,8 +25,8 @@ public class JobTest ***REMOVED***
 		
 		***REMOVED***test phase
 		Cluster stagingCluster = ClusterBuilder.getStagingDataminerCluster();
-		Cluster rProtoCluster = ClusterBuilder.getRProtoCluster();		
-		DMPMJob job = new StagingJob(svnUpdater, algo, stagingCluster, rProtoCluster, ScopeProvider.instance.get());
+		***REMOVED***Cluster rProtoCluster = ClusterBuilder.getRProtoCluster();		
+		DMPMJob job = new StagingJob(svnUpdater, algo, stagingCluster, /*rProtoCluster,*/ ScopeProvider.instance.get());
 		job.start();
 		
 		***REMOVED***release phase