diff -u b/core/modules/field/lib/Drupal/field/Plugin/Type/Widget/WidgetBase.php b/core/modules/field/lib/Drupal/field/Plugin/Type/Widget/WidgetBase.php
--- b/core/modules/field/lib/Drupal/field/Plugin/Type/Widget/WidgetBase.php
+++ b/core/modules/field/lib/Drupal/field/Plugin/Type/Widget/WidgetBase.php
@@ -49,16 +49,16 @@
    * Constructs a WidgetBase object.
    *
    * @param array $plugin_id
-   *   The plugin_id for the widget..
+   *   The plugin_id for the widget.
    * @param Drupal\Component\Plugin\Discovery\DiscoveryInterface $discovery
    *   The Discovery class that holds access to the widget implementation
    *   definition.
    * @param Drupal\field\FieldInstance $instance
    *   The field instance to which the widget is associated.
    * @param array $settings
-   *   The widget's settings.
+   *   The widget settings.
    * @param int $weight
-   *   The widget's weight.
+   *   The widget weight.
    */
   public function __construct($plugin_id, DiscoveryInterface $discovery, FieldInstance $instance, array $settings, $weight) {
     parent::__construct(array(), $plugin_id, $discovery);
diff -u b/core/modules/field/lib/Drupal/field/Plugin/Type/Widget/WidgetPluginManager.php b/core/modules/field/lib/Drupal/field/Plugin/Type/Widget/WidgetPluginManager.php
--- b/core/modules/field/lib/Drupal/field/Plugin/Type/Widget/WidgetPluginManager.php
+++ b/core/modules/field/lib/Drupal/field/Plugin/Type/Widget/WidgetPluginManager.php
@@ -50,7 +50,7 @@
   }
 
   /**
-   * Clear cached definitions.
+   * Clears cached definitions.
    *
    * @todo Remove when http://drupal.org/node/1764232 is fixed.
    */