diff --git a/src/main/java/org/gcube/portlets/widgets/wstaskexecutor/client/view/binder/CreateTaskConfigurationView.java b/src/main/java/org/gcube/portlets/widgets/wstaskexecutor/client/view/binder/CreateTaskConfigurationView.java
index ea2ccd9..0998d8f 100644
--- a/src/main/java/org/gcube/portlets/widgets/wstaskexecutor/client/view/binder/CreateTaskConfigurationView.java
+++ b/src/main/java/org/gcube/portlets/widgets/wstaskexecutor/client/view/binder/CreateTaskConfigurationView.java
@@ -269,7 +269,7 @@ public abstract class CreateTaskConfigurationView extends Composite {
 		cg_parameters_control.clear();
 
 		for (TaskParameter operator : taskOperator.getInputOperators()) {
-			appendCustomField(operator.getKey(), operator.getValue(), operator.getType().getType(), false);
+			appendCustomField(operator.getKey(), operator.getDefaultValue(), operator.getType().getType(), false);
 		}
 
 	}
diff --git a/src/main/java/org/gcube/portlets/widgets/wstaskexecutor/server/WsTaskExecutorWidgetServiceImpl.java b/src/main/java/org/gcube/portlets/widgets/wstaskexecutor/server/WsTaskExecutorWidgetServiceImpl.java
index e3cfd19..35bd05c 100644
--- a/src/main/java/org/gcube/portlets/widgets/wstaskexecutor/server/WsTaskExecutorWidgetServiceImpl.java
+++ b/src/main/java/org/gcube/portlets/widgets/wstaskexecutor/server/WsTaskExecutorWidgetServiceImpl.java
@@ -9,6 +9,7 @@ import org.gcube.common.portal.PortalContext;
 import org.gcube.common.scope.api.ScopeProvider;
 import org.gcube.common.workspacetaskexecutor.dataminer.WorkspaceDataMinerTaskExecutor;
 import org.gcube.common.workspacetaskexecutor.shared.TaskOperator;
+import org.gcube.common.workspacetaskexecutor.shared.TaskParameter;
 import org.gcube.common.workspacetaskexecutor.shared.TaskParameterType;
 import org.gcube.common.workspacetaskexecutor.shared.dataminer.TaskComputation;
 import org.gcube.common.workspacetaskexecutor.shared.dataminer.TaskConfiguration;
@@ -330,7 +331,20 @@ public class WsTaskExecutorWidgetServiceImpl extends RemoteServiceServlet implem
 			String token = PortalContextUtil.getTokenFor(scope, user.getUsername());
 			ScopeProvider.instance.set(scope);
 			SecurityTokenProvider.instance.set(token);
-			return exec.getListOperators();
+			List<TaskOperator> operators = exec.getListOperators();
+
+			if(logger.isDebugEnabled()){
+				for (TaskOperator taskOperator : operators) {
+					logger.trace("***Algor: "+taskOperator.getName());
+					List<TaskParameter> io = taskOperator.getInputOperators();
+					for (TaskParameter taskParameter : io) {
+						logger.trace("key: "+taskParameter.getKey() + ", value: "+taskParameter.getValue() +", defaultValue: "+taskParameter.getDefaultValue());
+					}
+
+				}
+			}
+			logger.info("Returning "+operators.size()+ " operator/s for the scope: "+scope);
+			return operators;
 
 		}catch(Exception e){
 			logger.error("Error on getting list of Operators for scope: "+scope,e);