diff --git a/geoplatform-services/geoplatform-ws-core/geoplatform-ws-webapp/pom.xml b/geoplatform-services/geoplatform-ws-core/geoplatform-ws-webapp/pom.xml
index ece3e9bf47..6c2758e97e 100644
--- a/geoplatform-services/geoplatform-ws-core/geoplatform-ws-webapp/pom.xml
+++ b/geoplatform-services/geoplatform-ws-core/geoplatform-ws-webapp/pom.xml
@@ -116,6 +116,12 @@
         <dependency>
             <groupId>org.springframework</groupId>
             <artifactId>spring-jmx</artifactId>
+            <exclusions>
+                <exclusion>    
+                    <groupId>javax.servlet</groupId>
+                    <artifactId>servlet-api</artifactId>
+                </exclusion>
+            </exclusions>
         </dependency>
         <dependency>
             <groupId>org.springframework</groupId>
@@ -222,12 +228,6 @@
             <artifactId>javax.servlet-api</artifactId>
             <scope>provided</scope>
         </dependency>
-        <!--        <dependency>
-            <groupId>javax.servlet</groupId>
-            <artifactId>servlet-api</artifactId>
-            <version>2.5</version>
-            <scope>provided</scope>
-        </dependency>-->
         
         <!-- =============================================================== -->
         <!-- JUnit -->
diff --git a/geoplatform-shared/geoplatform-sharing/src/main/java/org/geosdi/geoplatform/gui/shared/api/IGeoPlatformExecutor.java b/geoplatform-shared/geoplatform-sharing/src/main/java/org/geosdi/geoplatform/gui/shared/api/IGeoPlatformExecutor.java
new file mode 100644
index 0000000000..36962f7381
--- /dev/null
+++ b/geoplatform-shared/geoplatform-sharing/src/main/java/org/geosdi/geoplatform/gui/shared/api/IGeoPlatformExecutor.java
@@ -0,0 +1,46 @@
+/*
+ *  geo-platform
+ *  Rich webgis framework
+ *  http://geo-platform.org
+ * ====================================================================
+ *
+ * Copyright (C) 2008-2014 geoSDI Group (CNR IMAA - Potenza - ITALY).
+ *
+ * This program is free software: you can redistribute it and/or modify it 
+ * under the terms of the GNU General Public License as published by 
+ * the Free Software Foundation, either version 3 of the License, or 
+ * (at your option) any later version. This program is distributed in the 
+ * hope that it will be useful, but WITHOUT ANY WARRANTY; without 
+ * even the implied warranty of MERCHANTABILITY or FITNESS FOR 
+ * A PARTICULAR PURPOSE. See the GNU General Public License 
+ * for more details. You should have received a copy of the GNU General 
+ * Public License along with this program. If not, see http://www.gnu.org/licenses/ 
+ *
+ * ====================================================================
+ *
+ * Linking this library statically or dynamically with other modules is 
+ * making a combined work based on this library. Thus, the terms and 
+ * conditions of the GNU General Public License cover the whole combination. 
+ * 
+ * As a special exception, the copyright holders of this library give you permission 
+ * to link this library with independent modules to produce an executable, regardless 
+ * of the license terms of these independent modules, and to copy and distribute 
+ * the resulting executable under terms of your choice, provided that you also meet, 
+ * for each linked independent module, the terms and conditions of the license of 
+ * that module. An independent module is a module which is not derived from or 
+ * based on this library. If you modify this library, you may extend this exception 
+ * to your version of the library, but you are not obligated to do so. If you do not 
+ * wish to do so, delete this exception statement from your version. 
+ *
+ */
+package org.geosdi.geoplatform.gui.shared.api;
+
+/**
+ * @author Nazzareno Sileno - CNR IMAA geoSDI Group
+ * @email nazzareno.sileno@geosdi.org
+ */
+public interface IGeoPlatformExecutor<T> {
+
+    T execute();
+
+}