diff --git a/liferay-plugins-sdk-6.2/portlets/portos-firma-portlet/docroot/WEB-INF/src/it/tref/liferay/portos/firma/util/FirmaUtil.java b/liferay-plugins-sdk-6.2/portlets/portos-firma-portlet/docroot/WEB-INF/src/it/tref/liferay/portos/firma/util/FirmaUtil.java
index bf9b3966..596f30fc 100644
--- a/liferay-plugins-sdk-6.2/portlets/portos-firma-portlet/docroot/WEB-INF/src/it/tref/liferay/portos/firma/util/FirmaUtil.java
+++ b/liferay-plugins-sdk-6.2/portlets/portos-firma-portlet/docroot/WEB-INF/src/it/tref/liferay/portos/firma/util/FirmaUtil.java
@@ -66,7 +66,9 @@ public class FirmaUtil {
 		} catch (IOException e) {
 			_log.error(e.getMessage());
 		} finally {
-			client.getConnectionManager().shutdown();
+			if(client != null){
+				client.getConnectionManager().shutdown();
+			}
 		}
 		return listaCodiciFiscali;
 	}