diff --git a/core/includes/menu.inc b/core/includes/menu.inc
index 731d185..18e6260 100644
--- a/core/includes/menu.inc
+++ b/core/includes/menu.inc
@@ -1133,7 +1133,7 @@ function menu_tree_output($tree) {
     }
     // Set a class if the link is in the active trail.
     $localized_attributes = $data['link']->localized_options->attributes;
-    if ($data['link']->in_active_trail->value) {
+    if ($data['link']->inActiveTrail()) {
       $class[] = 'active-trail';
       $localized_attributes['class'][] = 'active-trail';
     }
@@ -1593,7 +1593,7 @@ function _menu_tree_check_access(&$tree) {
   foreach ($tree as $key => $v) {
     $item = &$tree[$key]['link'];
     _menu_link_translate($item);
-    if ($item->getAccess() || ($item->in_active_trail->value && strpos($item['href'], '%') !== FALSE)) {
+    if ($item->getAccess() || ($item->inActiveTrail() && strpos($item['href'], '%') !== FALSE)) {
       if ($tree[$key]['below']) {
         _menu_tree_check_access($tree[$key]['below']);
       }
@@ -1923,7 +1923,7 @@ function menu_navigation_links($menu_name, $level = 0) {
       $l = $item['link']->localized_options->getValue();
       $l['href'] = $item['link']['href'];
       $l['title'] = $item['link']['title'];
-      if ($item['link']->in_active_trail->value) {
+      if ($item['link']->inActiveTrail()) {
         $class = ' active-trail';
         $l['attributes']['class'][] = 'active-trail';
       }
@@ -2500,7 +2500,7 @@ function menu_set_active_trail($new_trail = NULL) {
 
     while ($curr) {
       $link = $curr['link'];
-      if ($link->in_active_trail->value) {
+      if ($link->inActiveTrail()) {
         // Add the link to the trail, unless it links to its parent.
         if (!($link['type'] & MENU_LINKS_TO_PARENT)) {
           // The menu tree for the active trail may contain additional links
@@ -2887,7 +2887,7 @@ function _menu_navigation_links_rebuild($menu) {
         $existing_item = NULL;
       }
 
-      if ($existing_item && $existing_item->customized->value) {
+      if ($existing_item && $existing_item->isCustomized()) {
         $parent_candidates[$existing_item->id()] = $existing_item;
       }
       else {
@@ -2905,11 +2905,11 @@ function _menu_navigation_links_rebuild($menu) {
   // Updated and customized items whose router paths are gone need new ones.
   $menu_links = $menu_link_controller->loadUpdatedCustomized($paths);
   foreach ($menu_links as $menu_link) {
-    $router_path = _menu_find_router_path($menu_link->link_path->value);
-    if (!empty($router_path) && ($router_path != $menu_link->router_path->value || $menu_link->updated->value)) {
+    $router_path = _menu_find_router_path($menu_link->getLinkPath());
+    if (!empty($router_path) && ($router_path != $menu_link->getRouterPath() || $menu_link->getChangedTime())) {
       // If the router path and the link path matches, it's surely a working
       // item, so we clear the updated flag.
-      $updated = $menu_link->updated->value && $router_path != $menu_link->link_path->value;
+      $updated = $menu_link->getChangedTime() && $router_path != $menu_link->getLinkPath();
 
       $menu_link->router_path = $router_path;
       $menu_link->updated = (int) $updated;
diff --git a/core/lib/Drupal/Core/Entity/Plugin/DataType/MapItem.php b/core/lib/Drupal/Core/Entity/Plugin/DataType/MapItem.php
index b2e55ce..738eb2b 100644
--- a/core/lib/Drupal/Core/Entity/Plugin/DataType/MapItem.php
+++ b/core/lib/Drupal/Core/Entity/Plugin/DataType/MapItem.php
@@ -19,7 +19,7 @@
  *   id = "map_field",
  *   label = @Translation("Map field item"),
  *   description = @Translation("An entity field containing a map value."),
- *   list_class = "\Drupal\Core\Entity\Field\Field"
+ *   list_class = "\Drupal\Core\Entity\Field\FieldItemList"
  * )
  */
 class MapItem extends FieldItemBase {
@@ -93,4 +93,4 @@ protected function valueToProperty($value, $name) {
 
     return \Drupal::typedData()->create($def, $value, $name, $this);
   }
-}
\ No newline at end of file
+}
diff --git a/core/modules/book/book.module b/core/modules/book/book.module
index fd86043..a1273da 100644
--- a/core/modules/book/book.module
+++ b/core/modules/book/book.module
@@ -58,7 +58,7 @@ function book_entity_bundle_info() {
 function book_menu_link_load($entities) {
   foreach ($entities as $entity) {
     // Change the bundle of menu links related to a book.
-    if (strpos($entity->menu_name->value, 'book-toc-') === 0) {
+    if (strpos($entity->getMenuName(), 'book-toc-') === 0) {
       $entity->bundle = 'book-toc';
     }
   }
diff --git a/core/modules/book/lib/Drupal/book/BookBreadcrumbBuilder.php b/core/modules/book/lib/Drupal/book/BookBreadcrumbBuilder.php
index 93d9e8e..c145bfd 100644
--- a/core/modules/book/lib/Drupal/book/BookBreadcrumbBuilder.php
+++ b/core/modules/book/lib/Drupal/book/BookBreadcrumbBuilder.php
@@ -85,8 +85,8 @@ public function build(array $attributes) {
         $depth = 1;
         while (!empty($book['p' . ($depth + 1)])) {
           if (!empty($menu_links[$book['p' . $depth]]) && ($menu_link = $menu_links[$book['p' . $depth]])) {
-            if ($this->accessManager->checkNamedRoute($menu_link->route_name->value, $menu_link->route_parameters[0]->getValue())) {
-              $links[] = $this->linkGenerator->generate($menu_link->label(), $menu_link->route_name->value, $menu_link->route_parameters[0]->getValue(), $menu_link->options[0]->getValue());
+            if ($this->accessManager->checkNamedRoute($menu_link->getRouteName(), $menu_link->route_parameters[0]->getValue())) {
+              $links[] = $this->linkGenerator->generate($menu_link->label(), $menu_link->getRouteName(), $menu_link->route_parameters[0]->getValue(), $menu_link->options[0]->getValue());
             }
           }
           $depth++;
diff --git a/core/modules/menu/lib/Drupal/menu/Form/MenuLinkDeleteForm.php b/core/modules/menu/lib/Drupal/menu/Form/MenuLinkDeleteForm.php
index 43db3a2..3c58a67 100644
--- a/core/modules/menu/lib/Drupal/menu/Form/MenuLinkDeleteForm.php
+++ b/core/modules/menu/lib/Drupal/menu/Form/MenuLinkDeleteForm.php
@@ -18,7 +18,7 @@ class MenuLinkDeleteForm extends EntityConfirmFormBase {
    * {@inheritdoc}
    */
   public function getQuestion() {
-    return t('Are you sure you want to delete the custom menu link %item?', array('%item' => $this->entity->link_title->value));
+    return t('Are you sure you want to delete the custom menu link %item?', array('%item' => $this->entity->getLinkTitle()));
   }
 
   /**
@@ -28,7 +28,7 @@ public function getCancelRoute() {
     return array(
       'route_name' => 'menu.menu_edit',
       'route_parameters' => array(
-        'menu' => $this->entity->menu_name->value,
+        'menu' => $this->entity->getMenuName(),
       ),
     );
   }
diff --git a/core/modules/menu/lib/Drupal/menu/Form/MenuLinkResetForm.php b/core/modules/menu/lib/Drupal/menu/Form/MenuLinkResetForm.php
index 6f41606..db2dcc0 100644
--- a/core/modules/menu/lib/Drupal/menu/Form/MenuLinkResetForm.php
+++ b/core/modules/menu/lib/Drupal/menu/Form/MenuLinkResetForm.php
@@ -18,7 +18,7 @@ class MenuLinkResetForm extends EntityConfirmFormBase {
    * {@inheritdoc}
    */
   public function getQuestion() {
-    return t('Are you sure you want to reset the link %item to its default values?', array('%item' => $this->entity->link_title->value));
+    return t('Are you sure you want to reset the link %item to its default values?', array('%item' => $this->entity->getLinkTitle()));
   }
 
   /**
@@ -28,7 +28,7 @@ public function getCancelRoute() {
     return array(
       'route_name' => 'menu.menu_edit',
       'route_parameters' => array(
-        'menu' => $this->entity->menu_name->value,
+        'menu' => $this->entity->getMenuName(),
       ),
     );
   }
diff --git a/core/modules/menu/lib/Drupal/menu/Tests/MenuTest.php b/core/modules/menu/lib/Drupal/menu/Tests/MenuTest.php
index e0ac0d7..f7ce4f8 100644
--- a/core/modules/menu/lib/Drupal/menu/Tests/MenuTest.php
+++ b/core/modules/menu/lib/Drupal/menu/Tests/MenuTest.php
@@ -448,7 +448,7 @@ public function testMenuBundles() {
 
     $unsaved_item = entity_create('menu_link', array('menu_name' => $menu->id(), 'link_title' => $this->randomName(16), 'link_path' => '<front>'));
     $this->assertEqual($unsaved_item->bundle(), $menu->id(), 'Unsaved menu link bundle matches the menu');
-    $this->assertEqual($unsaved_item->menu_name->value, $menu->id(), 'Unsaved menu link menu name matches the menu');
+    $this->assertEqual($unsaved_item->getMenuName(), $menu->id(), 'Unsaved menu link menu name matches the menu');
 
   }
 
diff --git a/core/modules/menu_link/lib/Drupal/menu_link/Entity/MenuLink.php b/core/modules/menu_link/lib/Drupal/menu_link/Entity/MenuLink.php
index 878ace8..29032a5 100644
--- a/core/modules/menu_link/lib/Drupal/menu_link/Entity/MenuLink.php
+++ b/core/modules/menu_link/lib/Drupal/menu_link/Entity/MenuLink.php
@@ -460,7 +460,7 @@ public function findParent(MenuLinkStorageControllerInterface $storage_controlle
     $parent = FALSE;
 
     $plid = $this->getParentLinkId();
-    // This item is explicitely top-level, skip the rest of the parenting.
+    // This item is explicitly top-level, skip the rest of the parenting.
     if ($plid === 0) {
       return $parent;
     }
@@ -626,7 +626,15 @@ public function setExpanded($expanded) {
     $this->set('expanded', $expanded ? 1 : 0);
   }
 
-  /**v
+  /**
+   * {@inheritdoc}
+   */
+  public function inActiveTrail() {
+    return (bool) $this->get('in_active_trail')->value;
+  }
+
+  /**
+   * {@inheritdoc}
    */
   public function isExpanded() {
     return (bool) $this->get('expanded')->value;
@@ -730,14 +738,30 @@ public function setRouteName($route_name) {
     return $this;
   }
 
+  /**
+   * Returns whether the menu link is accessible (old property).
+   *
+   * @return bool
+   *   Returns TRUE if the link is accessible, FALSE if not.
+   */
   public function getAccess() {
     return $this->get('access')->value;
   }
 
+  /**
+   * Set whether the menu link is accessible (old property).
+   *
+   * @param bool $access
+   *   TRUE if the link is accessible, FALSE if not.
+   *
+   * @return \Drupal\menu_link\MenuLinkInterface
+   *   The called menu link entity.
+   */
   public function setAccess($access) {
     $this->set('access', $access);
     return $this;
   }
+
   /**
    * {@inheritdoc}
    */
diff --git a/core/modules/menu_link/lib/Drupal/menu_link/MenuLinkAccessController.php b/core/modules/menu_link/lib/Drupal/menu_link/MenuLinkAccessController.php
index e710775..8c3d9e3 100644
--- a/core/modules/menu_link/lib/Drupal/menu_link/MenuLinkAccessController.php
+++ b/core/modules/menu_link/lib/Drupal/menu_link/MenuLinkAccessController.php
@@ -27,11 +27,11 @@ protected function checkAccess(EntityInterface $entity, $operation, $langcode, A
       switch ($operation) {
         case 'reset':
           // Reset allowed for items defined via hook_menu() and customized.
-          return $entity->module->value == 'system' && $entity->customized->value;
+          return $entity->getModule() == 'system' && $entity->isCustomized();
 
         case 'delete':
           // Only items created by the menu module can be deleted.
-          return $entity->module->value == 'menu' || $entity->updated->value == 1;
+          return $entity->getModule() == 'menu' || $entity->updated->value == 1;
 
       }
     }
diff --git a/core/modules/menu_link/lib/Drupal/menu_link/MenuLinkFormController.php b/core/modules/menu_link/lib/Drupal/menu_link/MenuLinkFormController.php
index ab09332..8f2f742 100644
--- a/core/modules/menu_link/lib/Drupal/menu_link/MenuLinkFormController.php
+++ b/core/modules/menu_link/lib/Drupal/menu_link/MenuLinkFormController.php
@@ -80,7 +80,7 @@ public function form(array $form, array &$form_state) {
     $form['link_title'] = array(
       '#type' => 'textfield',
       '#title' => t('Menu link title'),
-      '#default_value' => $menu_link->link_title->value,
+      '#default_value' => $menu_link->getLinkTitle(),
       '#description' => t('The text to be used for this link in the menu.'),
       '#required' => TRUE,
     );
@@ -92,14 +92,14 @@ public function form(array $form, array &$form_state) {
 
     // We are not using url() when constructing this path because it would add
     // $base_path.
-    $path = $menu_link->link_path->value;
+    $path = $menu_link->getLinkPath();
     if (isset($menu_link->options->query)) {
       $path .= '?' . $this->urlGenerator->httpBuildQuery($menu_link->options->query);
     }
     if (isset($menu_link->options->fragment)) {
       $path .= '#' . $menu_link->options->fragment;
     }
-    if ($menu_link->module->value == 'menu') {
+    if ($menu_link->getModule() == 'menu') {
       $form['link_path'] = array(
         '#type' => 'textfield',
         '#title' => t('Path'),
@@ -113,7 +113,7 @@ public function form(array $form, array &$form_state) {
       $form['_path'] = array(
         '#type' => 'item',
         '#title' => t('Path'),
-        '#description' => l($menu_link->link_title->value, $menu_link->href, $menu_link['options']),
+        '#description' => l($menu_link->getLinkTitle(), $menu_link->href, $menu_link['options']),
       );
     }
 
@@ -127,19 +127,19 @@ public function form(array $form, array &$form_state) {
     $form['enabled'] = array(
       '#type' => 'checkbox',
       '#title' => t('Enabled'),
-      '#default_value' => !$menu_link->hidden->value,
+      '#default_value' => !$menu_link->isHidden(),
       '#description' => t('Menu links that are not enabled will not be listed in any menu.'),
     );
     $form['expanded'] = array(
       '#type' => 'checkbox',
       '#title' => t('Show as expanded'),
-      '#default_value' => $menu_link->expanded->value,
+      '#default_value' => $menu_link->isExpanded(),
       '#description' => t('If selected and this menu link has children, the menu will always appear expanded.'),
     );
 
     // Generate a list of possible parents (not including this link or descendants).
     $options = menu_parent_options(menu_get_menus(), $menu_link);
-    $default = $menu_link->menu_name->value . ':' . $menu_link->plid->target_id;
+    $default = $menu_link->getMenuName() . ':' . $menu_link->plid->target_id;
     if (!isset($options[$default])) {
       $default = 'tools:0';
     }
@@ -153,7 +153,7 @@ public function form(array $form, array &$form_state) {
     );
 
     // Get number of items in menu so the weight selector is sized appropriately.
-    $delta = $this->menuLinkStorageController->countMenuLinks($menu_link->menu_name->value);
+    $delta = $this->menuLinkStorageController->countMenuLinks($menu_link->getMenuName());
     $form['weight'] = array(
       '#type' => 'weight',
       '#title' => t('Weight'),
@@ -175,7 +175,7 @@ public function form(array $form, array &$form_state) {
     // Without Language module menu links inherit the menu language and no
     // language selector is shown.
     else {
-      $default_langcode = ($menu_link->isNew() ? entity_load('menu', $menu_link->menu_name->value)->langcode : $menu_link->langcode->value);
+      $default_langcode = ($menu_link->isNew() ? entity_load('menu', $menu_link->getMenuName())->langcode : $menu_link->langcode->value);
       $language_show = FALSE;
     }
 
@@ -244,7 +244,7 @@ public function buildEntity(array $form, array &$form_state) {
     $entity = parent::buildEntity($form, $form_state);
     // The value of "hidden" is the opposite of the value supplied by the
     // "enabled" checkbox.
-    $entity->hidden->value = (int) !$form_state['values']['enabled'];
+    $entity->setHidden((bool) !$form_state['values']['enabled']);
     $substrs = explode(':', $form_state['values']['parent']);
     $entity->setMenuName($substrs[0]);
     $entity->plid = intval($substrs[1]);
diff --git a/core/modules/menu_link/lib/Drupal/menu_link/MenuLinkInterface.php b/core/modules/menu_link/lib/Drupal/menu_link/MenuLinkInterface.php
index 3b307ba..9b74ddd 100644
--- a/core/modules/menu_link/lib/Drupal/menu_link/MenuLinkInterface.php
+++ b/core/modules/menu_link/lib/Drupal/menu_link/MenuLinkInterface.php
@@ -270,6 +270,14 @@ public function isExternal();
   public function setCustomized($customized);
 
   /**
+   * Returns whether the menu link is in the active trail or not.
+   *
+   * @return bool
+   *   TRUE if the menu link is in the active trail, FALSE if not.
+   */
+  public function inActiveTrail();
+
+  /**
    * Returns whether the menu link is customized.
    *
    * @return string
@@ -379,7 +387,7 @@ public function setRouteName($route_name);
    *   The route parameters of this menu link.
    */
   public function getRouteParams();
-  
+
   /**
    * Sets the route parameters associated with this menu link.
    *
@@ -390,5 +398,4 @@ public function getRouteParams();
    *   The called menu link entity.
   */
   public function setRouteParams($route_parameters);
-  
 }
diff --git a/core/modules/menu_link/lib/Drupal/menu_link/MenuLinkStorageController.php b/core/modules/menu_link/lib/Drupal/menu_link/MenuLinkStorageController.php
index 7f691fb..9442cc8 100644
--- a/core/modules/menu_link/lib/Drupal/menu_link/MenuLinkStorageController.php
+++ b/core/modules/menu_link/lib/Drupal/menu_link/MenuLinkStorageController.php
@@ -166,10 +166,10 @@ protected function mapToStorageRecord(EntityInterface $entity) {
     foreach (array('options', 'route_parameters') as $property) {
       $record->$property = $entity->$property->getValue();
     }
-    
+
     return $record;
   }
-  
+
   /**
    * Overrides DatabaseStorageController::save().
    */
@@ -334,7 +334,7 @@ public function updateParentalStatus(EntityInterface $entity, $exclude = FALSE)
       // Check if at least one visible child exists in the table.
       $query = \Drupal::entityQuery($this->entityType);
       $query
-        ->condition('menu_name', $entity->menu_name->value)
+        ->condition('menu_name', $entity->getMenuName())
         ->condition('hidden', 0)
         ->condition('plid', $entity->plid->target_id)
         ->count();
@@ -359,7 +359,7 @@ public function findChildrenRelativeDepth(EntityInterface $entity) {
     // make sense to convert to EFQ?
     $query = $this->database->select('menu_links');
     $query->addField('menu_links', 'depth');
-    $query->condition('menu_name', $entity->menu_name->value);
+    $query->condition('menu_name', $entity->getMenuName());
     $query->orderBy('depth', 'DESC');
     $query->range(0, 1);
 
@@ -372,7 +372,7 @@ public function findChildrenRelativeDepth(EntityInterface $entity) {
 
     $max_depth = $query->execute()->fetchField();
 
-    return ($max_depth > $entity->depth->value) ? $max_depth - $entity->depth->value : 0;
+    return ($max_depth > $entity->getDepth()) ? $max_depth - $entity->getDepth() : 0;
   }
 
   /**
@@ -381,14 +381,14 @@ public function findChildrenRelativeDepth(EntityInterface $entity) {
   public function moveChildren(EntityInterface $entity) {
     $query = $this->database->update($this->entityInfo['base_table']);
 
-    $query->fields(array('menu_name' => $entity->menu_name->value));
+    $query->fields(array('menu_name' => $entity->getMenuName()));
 
     $p = 'p1';
     $expressions = array();
-    for ($i = 1; $i <= $entity->depth->value; $p = 'p' . ++$i) {
+    for ($i = 1; $i <= $entity->getDepth(); $p = 'p' . ++$i) {
       $expressions[] = array($p, ":p_$i", array(":p_$i" => $entity->{$p}->value));
     }
-    $j = $entity->original->depth->value + 1;
+    $j = $entity->original->getDepth() + 1;
     while ($i <= MENU_MAX_DEPTH && $j <= MENU_MAX_DEPTH) {
       $expressions[] = array('p' . $i++, 'p' . $j++, array());
     }
@@ -396,7 +396,7 @@ public function moveChildren(EntityInterface $entity) {
       $expressions[] = array('p' . $i++, 0, array());
     }
 
-    $shift = $entity->depth->value - $entity->original->depth->value;
+    $shift = $entity->getDepth() - $entity->original->getDepth();
     if ($shift > 0) {
       // The order of expressions must be reversed so the new values don't
       // overwrite the old ones before they can be used because "Single-table
@@ -409,7 +409,7 @@ public function moveChildren(EntityInterface $entity) {
     }
 
     $query->expression('depth', 'depth + :depth', array(':depth' => $shift));
-    $query->condition('menu_name', $entity->original->menu_name->value);
+    $query->condition('menu_name', $entity->original->getMenuName());
     $p = 'p1';
     for ($i = 1; $i <= MENU_MAX_DEPTH && $entity->original->{$p}->value; $p = 'p' . ++$i) {
       $query->condition($p, $entity->original->{$p}->value);
@@ -436,7 +436,7 @@ public function countMenuLinks($menu_name) {
    * {@inheritdoc}
    */
   public function getParentFromHierarchy(EntityInterface $entity) {
-    $parent_path = $entity->link_path->value;
+    $parent_path = $entity->getLinkPath();
     do {
       $parent = FALSE;
       $parent_path = substr($parent_path, 0, strrpos($parent_path, '/'));
@@ -447,7 +447,7 @@ public function getParentFromHierarchy(EntityInterface $entity) {
         ->condition('module', 'system')
         // We always respect the link's 'menu_name'; inheritance for router
         // items is ensured in _menu_router_build().
-        ->condition('menu_name', $entity->menu_name->value)
+        ->condition('menu_name', $entity->getMenuName())
         ->condition('link_path', $parent_path);
 
       $result = $query->execute();
diff --git a/core/modules/menu_link/menu_link.api.php b/core/modules/menu_link/menu_link.api.php
index f5ec959..b6f42fb 100644
--- a/core/modules/menu_link/menu_link.api.php
+++ b/core/modules/menu_link/menu_link.api.php
@@ -49,17 +49,17 @@ function hook_menu_link_load($menu_links) {
  */
 function hook_menu_link_presave(\Drupal\menu_link\Entity\MenuLink $menu_link) {
   // Make all new admin links hidden (a.k.a disabled).
-  if (strpos($menu_link->link_path->value, 'admin') === 0 && $menu_link->isNew()) {
+  if (strpos($menu_link->getLinkPath(), 'admin') === 0 && $menu_link->isNew()) {
     $menu_link->hidden = 1;
   }
   // Flag a link to be altered by hook_menu_link_load().
-  if ($menu_link->link_path->value == 'devel/cache/clear') {
+  if ($menu_link->getLinkPath() == 'devel/cache/clear') {
     $menu_link->options['alter'] = TRUE;
   }
   // Flag a menu link to be altered by hook_menu_link_load(), but only if it is
   // derived from a menu router item; i.e., do not alter a custom menu link
   // pointing to the same path that has been created by a user.
-  if ($menu_link->link_path->value == 'user' && $menu_link->module == 'system') {
+  if ($menu_link->getLinkPath() == 'user' && $menu_link->getModule() == 'system') {
     $menu_link->options['alter'] = TRUE;
   }
 }
@@ -82,7 +82,7 @@ function hook_menu_link_insert(\Drupal\menu_link\Entity\MenuLink $menu_link) {
   // In our sample case, we track menu items as editing sections
   // of the site. These are stored in our table as 'disabled' items.
   $record['mlid'] = $menu_link->id();
-  $record['menu_name'] = $menu_link->menu_name->value;
+  $record['menu_name'] = $menu_link->getMenuName();
   $record['status'] = 0;
   drupal_write_record('menu_example', $record);
 }
@@ -104,9 +104,9 @@ function hook_menu_link_insert(\Drupal\menu_link\Entity\MenuLink $menu_link) {
 function hook_menu_link_update(\Drupal\menu_link\Entity\MenuLink $menu_link) {
   // If the parent menu has changed, update our record.
   $menu_name = db_query("SELECT menu_name FROM {menu_example} WHERE mlid = :mlid", array(':mlid' => $menu_link->id()))->fetchField();
-  if ($menu_name != $menu_link->menu_name->value) {
+  if ($menu_name != $menu_link->getMenuName()) {
     db_update('menu_example')
-      ->fields(array('menu_name' => $menu_link->menu_name->value))
+      ->fields(array('menu_name' => $menu_link->getMenuName()))
       ->condition('mlid', $menu_link->id())
       ->execute();
   }
diff --git a/core/modules/menu_link/menu_link.module b/core/modules/menu_link/menu_link.module
index fb0ac30..2c7cf3d 100755
--- a/core/modules/menu_link/menu_link.module
+++ b/core/modules/menu_link/menu_link.module
@@ -208,7 +208,7 @@ function menu_link_system_breadcrumb_alter(array &$breadcrumb, array $attributes
     $menu_link = $attributes['menu_link'];
     if (($menu_link instanceof MenuLinkInterface) && !$menu_link->isNew()) {
       // Add a link to the menu admin screen.
-      $menu = entity_load('menu', $menu_link->menu_name->value);
+      $menu = entity_load('menu', $menu_link->getMenuName());
       $breadcrumb[] = Drupal::l($menu->label(), 'menu.menu_edit', array('menu' => $menu->id));
     }
   }
diff --git a/core/modules/shortcut/lib/Drupal/shortcut/Form/LinkDelete.php b/core/modules/shortcut/lib/Drupal/shortcut/Form/LinkDelete.php
index 6f0008f..f67f63f 100644
--- a/core/modules/shortcut/lib/Drupal/shortcut/Form/LinkDelete.php
+++ b/core/modules/shortcut/lib/Drupal/shortcut/Form/LinkDelete.php
@@ -33,7 +33,7 @@ public function getFormID() {
    * {@inheritdoc}
    */
   public function getQuestion() {
-    return t('Are you sure you want to delete the shortcut %title?', array('%title' => $this->menuLink->link_title->value));
+    return t('Are you sure you want to delete the shortcut %title?', array('%title' => $this->menuLink->getLinkTitle()));
   }
 
   /**
@@ -43,7 +43,7 @@ public function getCancelRoute() {
     return array(
       'route_name' => 'shortcut.set_customize',
       'route_parameters' => array(
-        'shortcut_set' => str_replace('shortcut-', '', $this->menuLink->menu_name->value),
+        'shortcut_set' => str_replace('shortcut-', '', $this->menuLink->getMenuName()),
       ),
     );
   }
@@ -69,9 +69,9 @@ public function buildForm(array $form, array &$form_state, MenuLink $menu_link =
    */
   public function submitForm(array &$form, array &$form_state) {
     menu_link_delete($this->menuLink->id());
-    $set_name = str_replace('shortcut-', '' , $this->menuLink->menu_name->value);
+    $set_name = str_replace('shortcut-', '' , $this->menuLink->getMenuName());
     $form_state['redirect'] = 'admin/config/user-interface/shortcut/manage/' . $set_name;
-    drupal_set_message(t('The shortcut %title has been deleted.', array('%title' => $this->menuLink->link_title->value)));
+    drupal_set_message(t('The shortcut %title has been deleted.', array('%title' => $this->menuLink->getLinkTitle())));
   }
 
 }
diff --git a/core/modules/shortcut/lib/Drupal/shortcut/Form/SetCustomize.php b/core/modules/shortcut/lib/Drupal/shortcut/Form/SetCustomize.php
index 97aafee..21e82ef 100644
--- a/core/modules/shortcut/lib/Drupal/shortcut/Form/SetCustomize.php
+++ b/core/modules/shortcut/lib/Drupal/shortcut/Form/SetCustomize.php
@@ -38,13 +38,13 @@ public function form(array $form, array &$form_state) {
     foreach ($this->entity->links as $link) {
       $mlid = $link->id();
       $form['shortcuts']['links'][$mlid]['#attributes']['class'][] = 'draggable';
-      $form['shortcuts']['links'][$mlid]['name']['#markup'] = l($link->link_title->value, $link->link_path->value);
-      $form['shortcuts']['links'][$mlid]['#weight'] = $link->weight->value;
+      $form['shortcuts']['links'][$mlid]['name']['#markup'] = l($link->getLinkTitle(), $link->getLinkPath());
+      $form['shortcuts']['links'][$mlid]['#weight'] = $link->getWeight();
       $form['shortcuts']['links'][$mlid]['weight'] = array(
         '#type' => 'weight',
-        '#title' => t('Weight for @title', array('@title' => $link->link_title->value)),
+        '#title' => t('Weight for @title', array('@title' => $link->getLinkTitle())),
         '#title_display' => 'invisible',
-        '#default_value' => $link->weight->value,
+        '#default_value' => $link->getWeight(),
         '#attributes' => array('class' => array('shortcut-weight')),
       );
 
diff --git a/core/modules/shortcut/shortcut.module b/core/modules/shortcut/shortcut.module
index 355bc61..dcf9432 100644
--- a/core/modules/shortcut/shortcut.module
+++ b/core/modules/shortcut/shortcut.module
@@ -56,7 +56,7 @@ function shortcut_entity_bundle_info() {
 function shortcut_menu_link_load($entities) {
   foreach ($entities as $entity) {
     // Change the bundle of menu links related to a shortcut.
-    if (strpos($entity->menu_name->value, 'shortcut-') === 0) {
+    if (strpos($entity->getMenuName(), 'shortcut-') === 0) {
       $entity->bundle = 'shortcut';
     }
   }
@@ -219,8 +219,8 @@ function shortcut_link_access($menu_link) {
  */
 function shortcut_menu_link_delete($menu_link) {
   // If the deleted menu link was in a shortcut set, remove it.
-  if (strpos($menu_link->menu_name->value, 'shortcut-') === 0) {
-    $shortcut = entity_load('shortcut_set', str_replace('shortcut-', '', $menu_link->menu_name->value));
+  if (strpos($menu_link->getMenuName(), 'shortcut-') === 0) {
+    $shortcut = entity_load('shortcut_set', str_replace('shortcut-', '', $menu_link->getMenuName()));
     unset($shortcut->links[$menu_link->uuid()]);
     $shortcut->save();
   }
diff --git a/core/modules/system/lib/Drupal/system/SystemManager.php b/core/modules/system/lib/Drupal/system/SystemManager.php
index 57d893f..f2e8973 100644
--- a/core/modules/system/lib/Drupal/system/SystemManager.php
+++ b/core/modules/system/lib/Drupal/system/SystemManager.php
@@ -198,7 +198,7 @@ public function getAdminBlock($item) {
       $menu_links = $this->menuLinkStorage->loadByProperties(array('router_path' => $item['path'], 'module' => 'system'));
       $menu_link = reset($menu_links);
       $item['mlid'] = $menu_link->id();
-      $item['menu_name'] = $menu_link->menu_name->value;
+      $item['menu_name'] = $menu_link->getMenuName();
     }
 
     if (isset($this->menuItems[$item['mlid']])) {
diff --git a/core/modules/system/lib/Drupal/system/Tests/Menu/MenuRouterTest.php b/core/modules/system/lib/Drupal/system/Tests/Menu/MenuRouterTest.php
index 86e1eb3..cba4e05 100644
--- a/core/modules/system/lib/Drupal/system/Tests/Menu/MenuRouterTest.php
+++ b/core/modules/system/lib/Drupal/system/Tests/Menu/MenuRouterTest.php
@@ -323,7 +323,7 @@ function testMenuName() {
 
     $menu_links = entity_load_multiple_by_properties('menu_link', array('router_path' => 'menu_name_test'));
     $menu_link = reset($menu_links);
-    $this->assertEqual($menu_link->menu_name->value, 'original', 'Menu name is "original".');
+    $this->assertEqual($menu_link->getMenuName(), 'original', 'Menu name is "original".');
 
     // Change the menu_name parameter in menu_test.module, then force a menu
     // rebuild.
@@ -333,7 +333,7 @@ function testMenuName() {
 
     $menu_links = entity_load_multiple_by_properties('menu_link', array('router_path' => 'menu_name_test'));
     $menu_link = reset($menu_links);
-    $this->assertEqual($menu_link->menu_name->value, 'changed', 'Menu name was successfully changed after rebuild.');
+    $this->assertEqual($menu_link->getMenuName(), 'changed', 'Menu name was successfully changed after rebuild.');
   }
 
   /**
@@ -364,7 +364,7 @@ function testMenuHidden() {
 
     $links = array();
     foreach ($menu_links as $menu_link) {
-      $links[$menu_link->router_path->value] = $menu_link;
+      $links[$menu_link->getRouterPath()] = $menu_link;
     }
 
     $parent = $links['menu-test/hidden/menu'];
@@ -416,7 +416,7 @@ function testMenuHidden() {
 
     $links = array();
     foreach ($menu_links as $menu_link) {
-      $links[$menu_link->router_path->value] = $menu_link;
+      $links[$menu_link->getRouterPath()] = $menu_link;
     }
 
     $parent = $links['menu-test/hidden/block'];