diff --git a/core/lib/Drupal/Core/Batch/BatchBuilder.php b/core/lib/Drupal/Core/Batch/BatchBuilder.php
index 99bf194..45b7431 100644
--- a/core/lib/Drupal/Core/Batch/BatchBuilder.php
+++ b/core/lib/Drupal/Core/Batch/BatchBuilder.php
@@ -14,7 +14,7 @@
  * foreach ($ids as $id) {
  *   $batch_builder->addOperation('batch_example_callback', [$id]);
  * }
- * $batch_builder->queue();
+ * batch_set($batch_builder->toArray());
  * @endcode
  */
 class BatchBuilder implements BatchBuilderInterface {
@@ -183,9 +183,8 @@ public function setProgressive($is_progressive = TRUE) {
    * {@inheritdoc}
    */
   public function setQueue($name, $class) {
-    if ($name === NULL && $class === NULL) {
-      $this->queue = NULL;
-      return $this;
+    if (!class_exists($class)) {
+      throw new \InvalidArgumentException('Class ' . $class . ' does not exist.');
     }
 
     $this->queue = [
@@ -216,14 +215,6 @@ public function addLibraries($libraries) {
   /**
    * {@inheritdoc}
    */
-  public function queue() {
-    batch_set($this->toArray());
-    return $this;
-  }
-
-  /**
-   * {@inheritdoc}
-   */
   public function toArray() {
     $array = [
       'operations' => $this->operations ?: [],
diff --git a/core/lib/Drupal/Core/Batch/BatchBuilderInterface.php b/core/lib/Drupal/Core/Batch/BatchBuilderInterface.php
index dbf4acb..8a5b1ea 100644
--- a/core/lib/Drupal/Core/Batch/BatchBuilderInterface.php
+++ b/core/lib/Drupal/Core/Batch/BatchBuilderInterface.php
@@ -117,10 +117,8 @@ public function setProgressive($is_progressive = TRUE);
    * @param string $name
    *   The unique identifier for the queue.
    * @param string $class
-   *   The name of a class that implements \Drupal\Core\Queue\QueueInterface,
-   *   including the full namespace but not starting with a backslash. It must
-   *   have a constructor with two arguments: $name and a
-   *   \Drupal\Core\Database\Connection object. Typically, the class will either
+   *   The fully qualified name of a class that implements
+   *   \Drupal\Core\Queue\QueueInterface. Typically, the class will either
    *   be \Drupal\Core\Queue\Batch or \Drupal\Core\Queue\BatchMemory. Defaults
    *   to Batch if progressive is TRUE, or to BatchMemory if progressive is
    *   FALSE.
@@ -152,13 +150,6 @@ public function addOperation(callable $callback, array $arguments = []);
   public function addLibraries($libraries);
 
   /**
-   * Places the batch in the queue to be processed.
-   *
-   * @return $this
-   */
-  public function queue();
-
-  /**
    * Converts a \Drupal\Core\Batch\Batch object into an array.
    *
    * @return array