diff --git a/ccm-core/src/com/arsdigita/kernel/ACSObjectInstantiator.java b/ccm-core/src/com/arsdigita/kernel/ACSObjectInstantiator.java
index b30185989..3a784691b 100755
--- a/ccm-core/src/com/arsdigita/kernel/ACSObjectInstantiator.java
+++ b/ccm-core/src/com/arsdigita/kernel/ACSObjectInstantiator.java
@@ -23,6 +23,7 @@ import com.arsdigita.domain.DomainObjectInstantiator;
 import com.arsdigita.domain.ReflectionInstantiator;
 import com.arsdigita.domain.DomainObjectFactory;
 import com.arsdigita.domain.DomainObject       ;
+import com.arsdigita.persistence.metadata.ObjectType;
 
 /**
  * Defines the instantiator that should be
@@ -123,7 +124,8 @@ public class ACSObjectInstantiator extends DomainObjectInstantiator {
      * @see com.arsdigita.domain.DomainObjectFactory
      */
     public DomainObjectInstantiator resolveInstantiator(DataObject dataObject) {
-        String type = (String) dataObject.get(ACSObject.OBJECT_TYPE);
+        //String type = (String) dataObject.get(ACSObject.OBJECT_TYPE);
+        ObjectType type = dataObject.getObjectType();
         dataObject.specialize(type);
 
         DomainObjectInstantiator instantiator =
diff --git a/ccm-core/src/com/arsdigita/kernel/Role.java b/ccm-core/src/com/arsdigita/kernel/Role.java
index 6770c4c4c..b16de85d8 100755
--- a/ccm-core/src/com/arsdigita/kernel/Role.java
+++ b/ccm-core/src/com/arsdigita/kernel/Role.java
@@ -517,6 +517,7 @@ public class Role extends DomainObject {
 
         while (collection.next()) {
             Role role = (Role) collection.getDomainObject();
+
             if (role != null) {
                 roleList.add(role);
             }
diff --git a/ccm-core/src/com/arsdigita/kernel/permissions/Permission.java b/ccm-core/src/com/arsdigita/kernel/permissions/Permission.java
index 53f489b9c..ee2b68db0 100755
--- a/ccm-core/src/com/arsdigita/kernel/permissions/Permission.java
+++ b/ccm-core/src/com/arsdigita/kernel/permissions/Permission.java
@@ -330,7 +330,7 @@ public class Permission extends DomainObject {
 
         final Session session = SessionManager.getSession();
         DomainCollection collection = new DomainCollection(session.retrieve(
-                Group.BASE_DATA_OBJECT_TYPE));
+                Permission.BASE_DATA_OBJECT_TYPE));
 
         while (collection.next()) {
             Permission permission = (Permission) collection.getDomainObject();
diff --git a/ccm-core/src/com/arsdigita/portation/conversion/core/workflow/UserTaskConversion.java b/ccm-core/src/com/arsdigita/portation/conversion/core/workflow/UserTaskConversion.java
index 1efab988c..ef9cd2187 100644
--- a/ccm-core/src/com/arsdigita/portation/conversion/core/workflow/UserTaskConversion.java
+++ b/ccm-core/src/com/arsdigita/portation/conversion/core/workflow/UserTaskConversion.java
@@ -76,23 +76,29 @@ public class UserTaskConversion {
             UserTask userTask = new UserTask(trunkUserTask);
 
             // set workflow and opposed associations
-            Workflow workflow = NgCollection.workflows.get(
-                    trunkUserTask.getWorkflow().getID().longValue());
-            if (workflow != null) {
-                userTask.setWorkflow(workflow);
-                workflow.addTask(userTask);
+            if (trunkUserTask.getWorkflow() != null) {
+                Workflow workflow = NgCollection.workflows.get(
+                        trunkUserTask.getWorkflow().getID().longValue());
+                if (workflow != null) {
+                    userTask.setWorkflow(workflow);
+                    workflow.addTask(userTask);
+                }
             }
 
             // set lockingUser and notificationSender
-            User lockingUser = NgCollection.users.get(trunkUserTask
-                    .getLockedUser()
-                    .getID().longValue());
-            User notificationSender = NgCollection.users.get(trunkUserTask
-                    .getNotificationSender().getID().longValue());
-            if (lockingUser != null)
-                userTask.setLockingUser(lockingUser);
-            if (notificationSender != null)
-                userTask.setNotificationSender(notificationSender);
+            if (trunkUserTask.getLockedUser() != null) {
+                User lockingUser = NgCollection.users.get(trunkUserTask
+                        .getLockedUser()
+                        .getID().longValue());
+                if (lockingUser != null)
+                    userTask.setLockingUser(lockingUser);
+            }
+            if (trunkUserTask.getNotificationSender() != null) {
+                User notificationSender = NgCollection.users.get(trunkUserTask
+                        .getNotificationSender().getID().longValue());
+                if (notificationSender != null)
+                    userTask.setNotificationSender(notificationSender);
+            }
 
             // taskAssignments
             GroupCollection groupCollection = trunkUserTask
diff --git a/ccm-core/src/com/arsdigita/portation/modules/core/categorization/Category.java b/ccm-core/src/com/arsdigita/portation/modules/core/categorization/Category.java
index 92fc5aafb..46050fc41 100644
--- a/ccm-core/src/com/arsdigita/portation/modules/core/categorization/Category.java
+++ b/ccm-core/src/com/arsdigita/portation/modules/core/categorization/Category.java
@@ -71,23 +71,42 @@ public class Category extends CcmObject {
         this.uniqueId = trunkCategory.getID().toString();
         this.name = trunkCategory.getName();
 
+//        CategoryLocalizationCollection categoryLocalizationCollection = trunkCategory.getCategoryLocalizationCollection();
+//
+//        if (categoryLocalizationCollection != null && categoryLocalizationCollection.next()) {
+//
+//            CategoryLocalization categoryLocalization = categoryLocalizationCollection.getCategoryLocalization();
+//
+//            if (categoryLocalization != null) {
+//
+//                String strLocale = categoryLocalization.getLocale();
+//                String name = categoryLocalization.getName();
+//                String description = categoryLocalization.getDescription();
+//
+//                if (strLocale != null) {
+//                    Locale locale = new Locale(strLocale);
+//                    if (name != null)
+//                        this.title.addValue(locale, name);
+//                    if (description != null)
+//                        this.description.addValue(locale, description);
+//                }
+//            }
+//        }
+
         CategoryLocalizationCollection categoryLocalizationCollection =
                 trunkCategory.getCategoryLocalizationCollection();
+
         if (categoryLocalizationCollection != null &&
                 categoryLocalizationCollection.next()) {
+
             CategoryLocalization categoryLocalization =
                     categoryLocalizationCollection.getCategoryLocalization();
             if (categoryLocalization != null) {
-                String strLocale = categoryLocalization.getLocale();
-                String name = categoryLocalization.getName();
-                String description = categoryLocalization.getDescription();
-                if (strLocale != null) {
-                    Locale locale = new Locale(strLocale);
-                    if (name != null)
-                        this.title.addValue(locale, name);
-                    if (description != null)
-                        this.description.addValue(locale, description);
-                }
+                Locale locale = new Locale(categoryLocalization.getLocale());
+                this.title = new LocalizedString();
+                this.title.addValue(locale, categoryLocalization.getName());
+                this.description = new LocalizedString();
+                this.description.addValue(locale, categoryLocalization.getDescription());
             }
         }
 
@@ -108,6 +127,9 @@ public class Category extends CcmObject {
                 ? defaultParent.getNumberOfChildCategories() + 1
                 : 0;
 
+        // to avoid infinite recursion
+        this.subCategoriesId = new ArrayList<>();
+
         NgCollection.categories.put(this.getObjectId(), this);
     }
 
diff --git a/ccm-core/src/com/arsdigita/portation/modules/core/workflow/Task.java b/ccm-core/src/com/arsdigita/portation/modules/core/workflow/Task.java
index b27a82edd..9daaa4b75 100644
--- a/ccm-core/src/com/arsdigita/portation/modules/core/workflow/Task.java
+++ b/ccm-core/src/com/arsdigita/portation/modules/core/workflow/Task.java
@@ -49,8 +49,11 @@ public class Task implements Identifiable {
 
     public Task(final com.arsdigita.workflow.simple.Task trunkTask) {
         this.taskId = trunkTask.getID().longValue();
-        label.addValue(Locale.ENGLISH, trunkTask.getLabel());
-        description.addValue(Locale.ENGLISH, trunkTask.getDescription());
+
+        this.label = new LocalizedString();
+        this.label.addValue(Locale.ENGLISH, trunkTask.getLabel());
+        this.description = new LocalizedString();
+        this.description.addValue(Locale.ENGLISH, trunkTask.getDescription());
 
         this.active = trunkTask.isActive();
         this.taskState = trunkTask.getStateString();
diff --git a/ccm-core/src/com/arsdigita/portation/modules/core/workflow/Workflow.java b/ccm-core/src/com/arsdigita/portation/modules/core/workflow/Workflow.java
index 5b0ecd08d..1e845e044 100644
--- a/ccm-core/src/com/arsdigita/portation/modules/core/workflow/Workflow.java
+++ b/ccm-core/src/com/arsdigita/portation/modules/core/workflow/Workflow.java
@@ -43,7 +43,9 @@ public class Workflow implements Identifiable {
     public Workflow(final com.arsdigita.workflow.simple.Workflow trunkWorkFlow) {
         this.workflowId = trunkWorkFlow.getID().longValue();
 
+        this.name = new LocalizedString();
         this.name.addValue(Locale.ENGLISH, trunkWorkFlow.getDisplayName());
+        this.description = new LocalizedString();
         this.description.addValue(Locale.ENGLISH, trunkWorkFlow.getDescription());
 
         this.tasks = new ArrayList<>();