diff --git a/core/modules/field/lib/Drupal/field/Plugin/Type/FieldType/ConfigEntityReferenceItemBase.php b/core/modules/field/lib/Drupal/field/Plugin/Type/FieldType/ConfigEntityReferenceItemBase.php
index 80b69b6..6da0a17 100644
--- a/core/modules/field/lib/Drupal/field/Plugin/Type/FieldType/ConfigEntityReferenceItemBase.php
+++ b/core/modules/field/lib/Drupal/field/Plugin/Type/FieldType/ConfigEntityReferenceItemBase.php
@@ -168,4 +168,98 @@ protected function getLegacyCallback($hook) {
     }
   }
 
+  /**
+   * {@inheritdoc}
+   *
+   * Copied from \Drupal\field\Plugin\Type\FieldType\ConfigFieldItemBase,
+   * since we cannot extend it.
+   */
+  public function defaultValuesForm(array &$form, array &$form_state) {
+    $entity = $this->getParent()->getParent();
+    $items = $this->getParent();
+    $widget = $this->defaultValueWidget($form_state);
+
+    $element = array('#parents' => array('default_value_input'));
+    $element += $widget->form($entity, $entity->language()->id, $items, $element, $form_state);
+
+    return $element;
+  }
+
+  /**
+   * {@inheritdoc}
+   *
+   * Copied from \Drupal\field\Plugin\Type\FieldType\ConfigFieldItemBase,
+   * since we cannot extend it.
+   */
+  public function defaultValuesFormValidate(array $element, array &$form, array &$form_state) {
+    $entity = $this->getParent()->getParent();
+    $items = $this->getParent();
+    $widget = $this->defaultValueWidget($form_state);
+
+    // Extract the 'default value'.
+    $widget->extractFormValues($entity, $entity->language()->id, $items, $element, $form_state);
+    $violations = $items->validate();
+
+    if (count($violations)) {
+      // Store reported errors in $form_state.
+      $field_name = $this->getFieldDefinition()->getFieldName();
+      $field_state = field_form_get_state($element['#parents'], $field_name, $entity->language()->id, $form_state);
+      $field_state['constraint_violations'] = $violations;
+      field_form_set_state($element['#parents'], $field_name, $entity->language()->id, $form_state, $field_state);
+
+      // Assign reported errors to the correct form element.
+      $widget->flagErrors($entity, $entity->language()->id, $this->getParent(), $element, $form_state);
+    }
+  }
+
+  /**
+   * {@inheritdoc}
+   *
+   * Copied from \Drupal\field\Plugin\Type\FieldType\ConfigFieldItemBase,
+   * since we cannot extend it.
+   */
+  public function defaultValuesFormSubmit(array $element, array &$form, array &$form_state) {
+    $entity = $this->getParent()->getParent();
+    $items = $this->getParent();
+    $widget = $this->defaultValueWidget($form_state);
+
+    // Extract the 'default value', and return it as an array.
+    $widget->extractFormValues($entity, $entity->language()->id, $items, $element, $form_state);
+    return $items->getValue();
+  }
+
+  /**
+   * Returns the widget object used in default value form.
+   *
+   * Copied from \Drupal\field\Plugin\Type\FieldType\ConfigFieldItemBase,
+   * since we cannot extend it.
+   *
+   * @param array $form_state
+   *   The form_state array.
+   *
+   * @return \Drupal\field\Plugin\Type\Widget\WidgetInterface
+   *   A Widget object.
+   */
+  protected function defaultValueWidget(array &$form_state) {
+    if (!isset($form_state['default_value_widget'])) {
+      $entity = $this->getParent()->getParent();
+
+      // Force a non-required widget.
+      $this->getFieldDefinition()->required = FALSE;
+      $this->getFieldDefinition()->description = '';
+
+      // Use the widget currently configured for the 'default' form mode, or
+      // fallback to the default widget for the field type.
+      $entity_form_display = entity_get_form_display($entity->entityType(), $entity->bundle(), 'default');
+      $widget = $entity_form_display->getRenderer($this->getFieldDefinition()->getFieldName());
+      if (!$widget) {
+        $widget = \Drupal::service('plugin.manager.field.widget')->getInstance(array('field_definition' => $this->getFieldDefinition()));
+      }
+
+      $form_state['default_value_widget'] = $widget;
+    }
+
+    return $form_state['default_value_widget'];
+  }
+
 }
diff --git a/core/modules/field/lib/Drupal/field/Plugin/Type/FieldType/ConfigFieldItemBase.php b/core/modules/field/lib/Drupal/field/Plugin/Type/FieldType/ConfigFieldItemBase.php
index 743ad5c..6a9b286 100644
--- a/core/modules/field/lib/Drupal/field/Plugin/Type/FieldType/ConfigFieldItemBase.php
+++ b/core/modules/field/lib/Drupal/field/Plugin/Type/FieldType/ConfigFieldItemBase.php
@@ -45,4 +45,86 @@ public function instanceSettingsForm(array $form, array &$form_state) {
     return array();
   }
 
+  /**
+   * {@inheritdoc}
+   */
+  public function defaultValuesForm(array &$form, array &$form_state) {
+    $entity = $this->getParent()->getParent();
+    $items = $this->getParent();
+    $widget = $this->defaultValueWidget($form_state);
+
+    $element = array('#parents' => array('default_value_input'));
+    $element += $widget->form($entity, $entity->language()->id, $items, $element, $form_state);
+
+    return $element;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function defaultValuesFormValidate(array $element, array &$form, array &$form_state) {
+    $entity = $this->getParent()->getParent();
+    $items = $this->getParent();
+    $widget = $this->defaultValueWidget($form_state);
+
+    // Extract the 'default value'.
+    $widget->extractFormValues($entity, $entity->language()->id, $items, $element, $form_state);
+    $violations = $items->validate();
+
+    if (count($violations)) {
+      // Store reported errors in $form_state.
+      $field_name = $this->getFieldDefinition()->getFieldName();
+      $field_state = field_form_get_state($element['#parents'], $field_name, $entity->language()->id, $form_state);
+      $field_state['constraint_violations'] = $violations;
+      field_form_set_state($element['#parents'], $field_name, $entity->language()->id, $form_state, $field_state);
+
+      // Assign reported errors to the correct form element.
+      $widget->flagErrors($entity, $entity->language()->id, $this->getParent(), $element, $form_state);
+    }
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function defaultValuesFormSubmit(array $element, array &$form, array &$form_state) {
+    $entity = $this->getParent()->getParent();
+    $items = $this->getParent();
+    $widget = $this->defaultValueWidget($form_state);
+
+    // Extract the 'default value', and return it as an array.
+    $widget->extractFormValues($entity, $entity->language()->id, $items, $element, $form_state);
+    return $items->getValue();
+  }
+
+  /**
+   * Returns the widget object used in default value form.
+   *
+   * @param array $form_state
+   *   The form_state array.
+   *
+   * @return \Drupal\field\Plugin\Type\Widget\WidgetInterface
+   *   A Widget object.
+   */
+  protected function defaultValueWidget(array &$form_state) {
+    if (!isset($form_state['default_value_widget'])) {
+      $entity = $this->getParent()->getParent();
+
+      // Force a non-required widget.
+      $this->getFieldDefinition()->required = FALSE;
+      $this->getFieldDefinition()->description = '';
+
+      // Use the widget currently configured for the 'default' form mode, or
+      // fallback to the default widget for the field type.
+      $entity_form_display = entity_get_form_display($entity->entityType(), $entity->bundle(), 'default');
+      $widget = $entity_form_display->getRenderer($this->getFieldDefinition()->getFieldName());
+      if (!$widget) {
+        $widget = \Drupal::service('plugin.manager.field.widget')->getInstance(array('field_definition' => $this->getFieldDefinition()));
+      }
+
+      $form_state['default_value_widget'] = $widget;
+    }
+
+    return $form_state['default_value_widget'];
+  }
+
 }
diff --git a/core/modules/field/lib/Drupal/field/Plugin/Type/FieldType/ConfigFieldItemInterface.php b/core/modules/field/lib/Drupal/field/Plugin/Type/FieldType/ConfigFieldItemInterface.php
index f37afa0..e6aceee 100644
--- a/core/modules/field/lib/Drupal/field/Plugin/Type/FieldType/ConfigFieldItemInterface.php
+++ b/core/modules/field/lib/Drupal/field/Plugin/Type/FieldType/ConfigFieldItemInterface.php
@@ -89,4 +89,56 @@ public function settingsForm(array $form, array &$form_state);
    */
   public function instanceSettingsForm(array $form, array &$form_state);
 
+  /**
+   * Builds the default value widget for a given field instance.
+   *
+   * Invoked from \Drupal\field_ui\Form\FieldInstanceEditForm to allow
+   * administrators to configure instance-level default value.
+   *
+   * @param array $form
+   *   The form where the settings form is being included in.
+   * @param array $form_state
+   *   The form state of the (entire) configuration form.
+   *
+   * @return array
+   *   The form definition for the field instance default value.
+   */
+  public function defaultValuesForm(array &$form, array &$form_state);
+
+  /**
+   * Validates the default value widget for a given field instance.
+   *
+   * Invoked from \Drupal\field_ui\Form\FieldInstanceEditForm to allow
+   * administrators to configure instance-level default value.
+   *
+   * @param array $element
+   *   The default value form base element
+   * @param array $form
+   *   The form where the settings form is being included in.
+   * @param array $form_state
+   *   The form state of the (entire) configuration form.
+   *
+   * @return array
+   *   The field instance default value.
+   */
+  public function defaultValuesFormValidate(array $element, array &$form, array &$form_state);
+
+  /**
+   * Submits the default value widget for a given field instance.
+   *
+   * Invoked from \Drupal\field_ui\Form\FieldInstanceEditForm to allow
+   * administrators to configure instance-level default value.
+   *
+   * @param array $element
+   *   The default value form base element
+   * @param array $form
+   *   The form where the settings form is being included in.
+   * @param array $form_state
+   *   The form state of the (entire) configuration form.
+   *
+   * @return array
+   *   The field instance default value.
+   */
+  public function defaultValuesFormSubmit(array $element, array &$form, array &$form_state);
+
 }
diff --git a/core/modules/field/lib/Drupal/field/Plugin/Type/Widget/WidgetPluginManager.php b/core/modules/field/lib/Drupal/field/Plugin/Type/Widget/WidgetPluginManager.php
index 12bb296..0fe4be9 100644
--- a/core/modules/field/lib/Drupal/field/Plugin/Type/Widget/WidgetPluginManager.php
+++ b/core/modules/field/lib/Drupal/field/Plugin/Type/Widget/WidgetPluginManager.php
@@ -87,12 +87,18 @@ public function __construct(\Traversable $namespaces, CacheBackendInterface $cac
    *   A Widget object.
    */
   public function getInstance(array $options) {
+    // Fill in defaults for missing properties.
+    $options += array(
+      'configuration' => array(),
+      'prepare' => TRUE,
+    );
+
     $configuration = $options['configuration'];
     $field_definition = $options['field_definition'];
     $field_type = $field_definition->getFieldType();
 
     // Fill in default configuration if needed.
-    if (!isset($options['prepare']) || $options['prepare'] == TRUE) {
+    if ($options['prepare']) {
       $configuration = $this->prepareConfiguration($field_type, $configuration);
     }
 
diff --git a/core/modules/field/tests/modules/field_test/lib/Drupal/field_test/Plugin/field/widget/TestFieldWidgetNoDefault.php b/core/modules/field/tests/modules/field_test/lib/Drupal/field_test/Plugin/field/widget/TestFieldWidgetNoDefault.php
deleted file mode 100644
index d17d6de..0000000
--- a/core/modules/field/tests/modules/field_test/lib/Drupal/field_test/Plugin/field/widget/TestFieldWidgetNoDefault.php
+++ /dev/null
@@ -1,29 +0,0 @@
-<?php
-
-/**
- * @file
- * Definition of Drupal\field_test\Plugin\field\widget\TestFieldWidgetNoDefault.
- */
-
-namespace Drupal\field_test\Plugin\field\widget;
-
-use Drupal\field\Annotation\FieldWidget;
-use Drupal\Core\Annotation\Translation;
-use Drupal\field\Plugin\Type\Widget\WidgetBase;
-
-/**
- * Plugin implementation of the 'test_field_widget_no_default' widget.
- *
- * @FieldWidget(
- *   id = "test_field_widget_no_default",
- *   label = @Translation("Test widget - no default"),
- *   field_types = {
- *      "test_field"
- *   },
- *   settings = {
- *     "test_widget_setting_multiple" = "dummy test string"
- *   },
- *   default_value = FALSE
- * )
- */
-class TestFieldWidgetNoDefault extends TestFieldWidget {}
diff --git a/core/modules/field_ui/lib/Drupal/field_ui/Form/FieldInstanceEditForm.php b/core/modules/field_ui/lib/Drupal/field_ui/Form/FieldInstanceEditForm.php
index 046e012..72bc745 100644
--- a/core/modules/field_ui/lib/Drupal/field_ui/Form/FieldInstanceEditForm.php
+++ b/core/modules/field_ui/lib/Drupal/field_ui/Form/FieldInstanceEditForm.php
@@ -11,11 +11,8 @@
 use Drupal\Core\Entity\EntityInterface;
 use Drupal\Core\Entity\EntityManager;
 use Drupal\Core\Entity\EntityNG;
-use Drupal\Core\Entity\Field\FieldTypePluginManager;
 use Drupal\Core\Form\FormInterface;
-use Drupal\Core\Language\Language;
 use Drupal\field\FieldInstanceInterface;
-use Drupal\field\Plugin\Type\Widget\WidgetPluginManager;
 use Drupal\field_ui\FieldUI;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 
@@ -32,13 +29,6 @@ class FieldInstanceEditForm implements FormInterface, ControllerInterface {
   protected $instance;
 
   /**
-   * The field widget plugin manager.
-   *
-   * @var \Drupal\field\Plugin\Type\Widget\WidgetPluginManager
-   */
-  protected $widgetManager;
-
-  /**
    * The entity manager.
    *
    * @var \Drupal\Core\Entity\EntityManager
@@ -46,26 +36,13 @@ class FieldInstanceEditForm implements FormInterface, ControllerInterface {
   protected $entityManager;
 
   /**
-   *  The field type manager.
-   *
-   * @var \Drupal\Core\Entity\Field\FieldTypePluginManager
-   */
-  protected $fieldTypeManager;
-
-  /**
    * Constructs a new field instance form.
    *
    * @param \Drupal\Core\Entity\EntityManager $entity_manager
    *   The entity manager.
-   * @param \Drupal\field\Plugin\Type\Widget\WidgetPluginManager $widget_manager
-   *   The field widget plugin manager.
-   * @param \Drupal\Core\Entity\Field\FieldTypePluginManager $field_type_manager
-   *   The field type manager.
    */
-  public function __construct(EntityManager $entity_manager, WidgetPluginManager $widget_manager, FieldTypePluginManager $field_type_manager) {
+  public function __construct(EntityManager $entity_manager) {
     $this->entityManager = $entity_manager;
-    $this->widgetManager = $widget_manager;
-    $this->fieldTypeManager = $field_type_manager;
   }
 
   /**
@@ -73,9 +50,7 @@ public function __construct(EntityManager $entity_manager, WidgetPluginManager $
    */
   public static function create(ContainerInterface $container) {
     return new static(
-      $container->get('plugin.manager.entity'),
-      $container->get('plugin.manager.field.widget'),
-      $container->get('plugin.manager.entity.field.field_type')
+      $container->get('plugin.manager.entity')
     );
   }
 
@@ -95,7 +70,6 @@ public function buildForm(array $form, array &$form_state, FieldInstanceInterfac
     $bundle = $this->instance['bundle'];
     $entity_type = $this->instance['entity_type'];
     $field = $this->instance->getField();
-    $entity_form_display = entity_get_form_display($entity_type, $bundle, 'default');
     $bundles = entity_get_bundles();
 
     drupal_set_title(t('%instance settings for %bundle', array(
@@ -104,11 +78,10 @@ public function buildForm(array $form, array &$form_state, FieldInstanceInterfac
     )), PASS_THROUGH);
 
     $form['#field'] = $field;
-    $form['#entity_form_display'] = $entity_form_display;
     // Create an arbitrary entity object (used by the 'default value' widget).
     $ids = (object) array('entity_type' => $this->instance['entity_type'], 'bundle' => $this->instance['bundle'], 'entity_id' => NULL);
     $form['#entity'] = _field_create_entity_from_ids($ids);
-    $form['#entity']->field_ui_default_value = TRUE;
+    $item = $this->getFieldItem($form['#entity'], $this->instance['field_name']);
 
     if (!empty($field['locked'])) {
       $form['locked'] = array(
@@ -162,12 +135,17 @@ public function buildForm(array $form, array &$form_state, FieldInstanceInterfac
     );
 
     // Add instance settings for the field type.
-    $form['instance']['settings'] = $this->getFieldItem($form['#entity'], $this->instance['field_name'])->instanceSettingsForm($form, $form_state);
+    $form['instance']['settings'] = $item->instanceSettingsForm($form, $form_state);
     $form['instance']['settings']['#weight'] = 10;
 
-    // Add handling for default value if not provided by any other module.
-    if (field_behaviors_widget('default_value', $this->instance) == FIELD_BEHAVIOR_DEFAULT && empty($this->instance['default_value_function'])) {
-      $form['instance']['default_value_widget'] = $this->getDefaultValueWidget($field, $form, $form_state);
+    // Add handling for default value.
+    if (empty($this->instance['default_value_function']) && $element = $item->defaultValuesForm($form, $form_state)) {
+      $element += array(
+        '#type' => 'details',
+        '#title' => t('Default value'),
+        '#description' => t('The default value for this field, used when creating new content.'),
+      );
+      $form['instance']['default_value'] = $element;
     }
 
     $form['actions'] = array('#type' => 'actions');
@@ -187,30 +165,9 @@ public function buildForm(array $form, array &$form_state, FieldInstanceInterfac
    * {@inheritdoc}
    */
   public function validateForm(array &$form, array &$form_state) {
-    // Take the incoming values as the $this->instance definition, so that the 'default
-    // value' gets validated using the instance settings being submitted.
-    $field_name = $this->instance['field_name'];
-    $entity = $form['#entity'];
-    $entity_form_display = $form['#entity_form_display'];
-
-    if (isset($form['instance']['default_value_widget'])) {
-      $element = $form['instance']['default_value_widget'];
-
-      // Extract the 'default value'.
-      $items = $entity->getNGEntity()->{$field_name};
-      $entity_form_display->getRenderer($this->instance->getField()->id)->extractFormValues($entity, Language::LANGCODE_NOT_SPECIFIED, $items, $element, $form_state);
-      $violations = $items->validate();
-
-      // Report errors.
-      if (count($violations)) {
-        $field_state = field_form_get_state($element['#parents'], $field_name, Language::LANGCODE_NOT_SPECIFIED, $form_state);
-        // Store reported errors in $form_state.
-        $field_state['constraint_violations'] = $violations;
-        field_form_set_state($element['#parents'], $field_name, Language::LANGCODE_NOT_SPECIFIED, $form_state, $field_state);
-
-        // Assign reported errors to the correct form element.
-        $entity_form_display->getRenderer($this->instance->getField()->id)->flagErrors($entity, Language::LANGCODE_NOT_SPECIFIED, $items, $element, $form_state);
-      }
+    if (isset($form['instance']['default_value'])) {
+      $item = $this->getFieldItem($form['#entity'], $this->instance['field_name']);
+      $item->defaultValuesFormValidate($form['instance']['default_value'], $form, $form_state);
     }
   }
 
@@ -218,20 +175,15 @@ public function validateForm(array &$form, array &$form_state) {
    * {@inheritdoc}
    */
   public function submitForm(array &$form, array &$form_state) {
-    $field_name = $this->instance['field_name'];
-    $entity = $form['#entity'];
-    $entity_form_display = $form['#entity_form_display'];
-
     // Handle the default value.
-    if (isset($form['instance']['default_value_widget'])) {
-      $element = $form['instance']['default_value_widget'];
-
-      // Extract field values.
-      $items = $entity->getNGEntity()->{$field_name};
-      $entity_form_display->getRenderer($this->instance->getField()->id)->extractFormValues($entity, Language::LANGCODE_NOT_SPECIFIED, $items, $element, $form_state);
-
-      $this->instance['default_value'] = $items->getValue() ?: NULL;
+    if (isset($form['instance']['default_value'])) {
+      $item = $this->getFieldItem($form['#entity'], $this->instance['field_name']);
+      $default_value = $item->defaultValuesFormSubmit($form['instance']['default_value'], $form, $form_state);
     }
+    else {
+      $default_value = array();
+    }
+    $this->instance['default_value'] = $default_value;
 
     // Merge incoming values into the instance.
     foreach ($form_state['values']['instance'] as $key => $value) {
@@ -257,55 +209,6 @@ public function delete(array &$form, array &$form_state) {
   }
 
   /**
-   * Builds the default value widget for a given field instance.
-   */
-  protected function getDefaultValueWidget($field, array &$form, &$form_state) {
-    $entity = $form['#entity'];
-    $entity_form_display = $form['#entity_form_display'];
-
-    $element = array(
-      '#type' => 'details',
-      '#title' => t('Default value'),
-      '#tree' => TRUE,
-      '#description' => t('The default value for this field, used when creating new content.'),
-      // Stick to an empty 'parents' on this form in order not to breaks widgets
-      // that do not use field_widget_[field|instance]() and still access
-      // $form_state['field'] directly.
-      '#parents' => array(),
-    );
-
-    // Adjust the instance definition used for the form element. We want a
-    // non-required input and no description.
-    $this->instance['required'] = FALSE;
-    $this->instance['description'] = '';
-
-    // Adjust the instance definition to use the default widget of this field type
-    // instead of the hidden widget.
-    // @todo Clean this up since we don't have $this->instance['widget'] anymore.
-    //   see https://drupal.org/node/2028759
-    if ($this->instance['widget']['type'] == 'hidden') {
-      $field_type = $this->fieldTypeManager->getDefinition($field['type']);
-      $default_widget = $this->widgetManager->getDefinition($field_type['default_widget']);
-
-      $this->instance['widget'] = array(
-        'type' => $default_widget['id'],
-        'settings' => $default_widget['settings'],
-        'weight' => 0,
-      );
-    }
-
-    // Insert the widget. Since we do not use the "official" instance definition,
-    // the whole flow cannot use field_invoke_method().
-    $items = $entity->getNGEntity()->{$this->instance->getField()->id};
-    if (!empty($this->instance['default_value'])) {
-      $items->setValue((array) $this->instance['default_value']);
-    }
-    $element += $entity_form_display->getRenderer($this->instance->getField()->id)->form($entity, Language::LANGCODE_NOT_SPECIFIED, $items, $element, $form_state);
-
-    return $element;
-  }
-
-  /**
    * Returns a FieldItem object for an entity.
    *
    * @todo Remove when all entity types extend EntityNG.
@@ -324,7 +227,7 @@ protected function getFieldItem(EntityInterface $entity, $field_name) {
     }
     else {
       $definitions = \Drupal::entityManager()->getFieldDefinitions($entity->entityType(), $entity->bundle());
-      $item = \Drupal::typedData()->create($definitions[$field_name], array(), $field_name, $entity)->offsetGet(0);
+      $item = \Drupal::typedData()->create($definitions[$field_name], $this->instance->default_value, $field_name, $entity)->offsetGet(0);
     }
     return $item;
   }
diff --git a/core/modules/field_ui/lib/Drupal/field_ui/Tests/ManageFieldsTest.php b/core/modules/field_ui/lib/Drupal/field_ui/Tests/ManageFieldsTest.php
index 69be9ec..885dd48 100644
--- a/core/modules/field_ui/lib/Drupal/field_ui/Tests/ManageFieldsTest.php
+++ b/core/modules/field_ui/lib/Drupal/field_ui/Tests/ManageFieldsTest.php
@@ -292,8 +292,8 @@ function testDefaultValue() {
 
     $langcode = Language::LANGCODE_NOT_SPECIFIED;
     $admin_path = 'admin/structure/types/manage/' . $this->type . '/fields/' . $instance->id();
-    $element_id = "edit-$field_name-$langcode-0-value";
-    $element_name = "{$field_name}[$langcode][0][value]";
+    $element_id = "edit-default-value-input-$field_name-$langcode-0-value";
+    $element_name = "default_value_input[{$field_name}][$langcode][0][value]";
     $this->drupalGet($admin_path);
     $this->assertFieldById($element_id, '', 'The default value widget was empty.');
 
@@ -322,15 +322,11 @@ function testDefaultValue() {
     $instance = field_info_instance('node', $field_name, $this->type);
     $this->assertEqual($instance['default_value'], NULL, 'The default value was correctly saved.');
 
-    // Change the widget to TestFieldWidgetNoDefault.
+    // Check that the default widget is displayed when the field is hidden.
     entity_get_form_display($instance['entity_type'], $instance['bundle'], 'default')
-      ->setComponent($field_name, array(
-        'type' => 'test_field_widget_no_default',
-      ))
-      ->save();
-
+      ->removeComponent($field_name)->save();
     $this->drupalGet($admin_path);
-    $this->assertNoFieldById($element_id, '', 'No default value was possible for widget that disables default value.');
+    $this->assertFieldById($element_id, '', 'The default value widget was displayed when field is hidden.');
   }
 
   /**
diff --git a/core/modules/file/lib/Drupal/file/Plugin/field/widget/FileWidget.php b/core/modules/file/lib/Drupal/file/Plugin/field/widget/FileWidget.php
index 245ec34..47a45cf 100644
--- a/core/modules/file/lib/Drupal/file/Plugin/field/widget/FileWidget.php
+++ b/core/modules/file/lib/Drupal/file/Plugin/field/widget/FileWidget.php
@@ -25,7 +25,6 @@
  *   settings = {
  *     "progress_indicator" = "throbber"
  *   },
- *   default_value = FALSE
  * )
  */
 class FileWidget extends WidgetBase {
diff --git a/core/modules/file/lib/Drupal/file/Type/FileItem.php b/core/modules/file/lib/Drupal/file/Type/FileItem.php
index c8f1a9c..c58b17e 100644
--- a/core/modules/file/lib/Drupal/file/Type/FileItem.php
+++ b/core/modules/file/lib/Drupal/file/Type/FileItem.php
@@ -47,4 +47,9 @@ public function getPropertyDefinitions() {
     return static::$propertyDefinitions[$key];
   }
 
+  /**
+   * {@inheritdoc}
+   */
+  public function defaultValuesForm(array &$form, array &$form_state) { }
+
 }
diff --git a/core/modules/image/lib/Drupal/image/Plugin/field/widget/ImageWidget.php b/core/modules/image/lib/Drupal/image/Plugin/field/widget/ImageWidget.php
index 3b733a6..cf01fb8 100644
--- a/core/modules/image/lib/Drupal/image/Plugin/field/widget/ImageWidget.php
+++ b/core/modules/image/lib/Drupal/image/Plugin/field/widget/ImageWidget.php
@@ -9,7 +9,6 @@
 
 use Drupal\field\Annotation\FieldWidget;
 use Drupal\Core\Annotation\Translation;
-use Drupal\field\Plugin\Type\Widget\WidgetBase;
 use Drupal\file\Plugin\field\widget\FileWidget;
 use Drupal\Core\Entity\EntityInterface;
 use Drupal\Core\Entity\Field\FieldInterface;
@@ -27,7 +26,6 @@
  *     "progress_indicator" = "throbber",
  *     "preview_image_style" = "thumbnail",
  *   },
- *   default_value = FALSE
  * )
  */
 class ImageWidget extends FileWidget {
diff --git a/core/modules/image/lib/Drupal/image/Type/ImageItem.php b/core/modules/image/lib/Drupal/image/Type/ImageItem.php
index 3b86fe4..1e70450 100644
--- a/core/modules/image/lib/Drupal/image/Type/ImageItem.php
+++ b/core/modules/image/lib/Drupal/image/Type/ImageItem.php
@@ -55,4 +55,9 @@ public function getPropertyDefinitions() {
     return static::$propertyDefinitions[$key];
   }
 
+  /**
+   * {@inheritdoc}
+   */
+  public function defaultValuesForm(array &$form, array &$form_state) { }
+
 }
diff --git a/core/modules/node/lib/Drupal/node/Tests/NodeAccessFieldTest.php b/core/modules/node/lib/Drupal/node/Tests/NodeAccessFieldTest.php
index 8b4bf7a..29a831f 100644
--- a/core/modules/node/lib/Drupal/node/Tests/NodeAccessFieldTest.php
+++ b/core/modules/node/lib/Drupal/node/Tests/NodeAccessFieldTest.php
@@ -101,7 +101,7 @@ function testNodeAccessAdministerField() {
     // Modify the field default as the content admin.
     $edit = array();
     $default = 'Sometimes words have two meanings';
-    $edit["{$this->field_name}[$langcode][0][value]"] = $default;
+    $edit["default_value_input[{$this->field_name}][$langcode][0][value]"] = $default;
     $this->drupalPost(
       "admin/structure/types/manage/page/fields/node.page.{$this->field_name}",
       $edit,