diff --git a/liferay-plugins-sdk-6.2/portlets/portos-advanced-operation-portlet/docroot/WEB-INF/lib/portos-bo-portlet-service.jar b/liferay-plugins-sdk-6.2/portlets/portos-advanced-operation-portlet/docroot/WEB-INF/lib/portos-bo-portlet-service.jar
index 9696745c..24786880 100644
Binary files a/liferay-plugins-sdk-6.2/portlets/portos-advanced-operation-portlet/docroot/WEB-INF/lib/portos-bo-portlet-service.jar and b/liferay-plugins-sdk-6.2/portlets/portos-advanced-operation-portlet/docroot/WEB-INF/lib/portos-bo-portlet-service.jar differ
diff --git a/liferay-plugins-sdk-6.2/portlets/portos-advanced-operation-portlet/docroot/WEB-INF/lib/portos-bo-shared.jar b/liferay-plugins-sdk-6.2/portlets/portos-advanced-operation-portlet/docroot/WEB-INF/lib/portos-bo-shared.jar
index 838f0278..f37957df 100644
Binary files a/liferay-plugins-sdk-6.2/portlets/portos-advanced-operation-portlet/docroot/WEB-INF/lib/portos-bo-shared.jar and b/liferay-plugins-sdk-6.2/portlets/portos-advanced-operation-portlet/docroot/WEB-INF/lib/portos-bo-shared.jar differ
diff --git a/liferay-plugins-sdk-6.2/portlets/portos-advanced-operation-portlet/docroot/WEB-INF/lib/portos-kaleo-shared.jar b/liferay-plugins-sdk-6.2/portlets/portos-advanced-operation-portlet/docroot/WEB-INF/lib/portos-kaleo-shared.jar
index 34da0aba..0f22732e 100644
Binary files a/liferay-plugins-sdk-6.2/portlets/portos-advanced-operation-portlet/docroot/WEB-INF/lib/portos-kaleo-shared.jar and b/liferay-plugins-sdk-6.2/portlets/portos-advanced-operation-portlet/docroot/WEB-INF/lib/portos-kaleo-shared.jar differ
diff --git a/liferay-plugins-sdk-6.2/portlets/portos-advanced-operation-portlet/docroot/WEB-INF/src/it/nextmind/liferay/portos/advanced/operation/util/AdvancedOperationUtil.java b/liferay-plugins-sdk-6.2/portlets/portos-advanced-operation-portlet/docroot/WEB-INF/src/it/nextmind/liferay/portos/advanced/operation/util/AdvancedOperationUtil.java
index bc452881..a1bdf2c5 100644
--- a/liferay-plugins-sdk-6.2/portlets/portos-advanced-operation-portlet/docroot/WEB-INF/src/it/nextmind/liferay/portos/advanced/operation/util/AdvancedOperationUtil.java
+++ b/liferay-plugins-sdk-6.2/portlets/portos-advanced-operation-portlet/docroot/WEB-INF/src/it/nextmind/liferay/portos/advanced/operation/util/AdvancedOperationUtil.java
@@ -285,7 +285,7 @@ public class AdvancedOperationUtil {
 	public static SortedSet<Integer> getIstruttoreUOs(IntPratica intPratica){
 		try {
 			User tecnicoIstruttore = UserLocalServiceUtil.fetchUser(intPratica.getStatusByUserId());
-			if(-1 != tecnicoIstruttore.getUserId()){
+			if(Validator.isNotNull(tecnicoIstruttore) && -1 != tecnicoIstruttore.getUserId()){
 				return UserUtil.getUnitaOperative(tecnicoIstruttore);
 			}
 		} catch (SystemException e) {