commit 6b1940f828710edbeecd3761749f17fc39ad2fd3
Author: fago <nuppla@zites.net>
Date:   Wed Apr 10 12:27:08 2013 +0200

    Fixed hal language problems.

diff --git a/core/modules/hal/lib/Drupal/hal/Normalizer/EntityNormalizer.php b/core/modules/hal/lib/Drupal/hal/Normalizer/EntityNormalizer.php
index 2618d9a..a414155 100644
--- a/core/modules/hal/lib/Drupal/hal/Normalizer/EntityNormalizer.php
+++ b/core/modules/hal/lib/Drupal/hal/Normalizer/EntityNormalizer.php
@@ -73,11 +73,16 @@ public function denormalize($data, $class, $format = NULL, array $context = arra
       throw new UnexpectedValueException('The type link relation must be specified.');
     }
 
-    // Get language.
-    $langcode = isset($data['langcode']) ? $data['langcode'][0]['value'] : LANGUAGE_NOT_SPECIFIED;
-
     // Create the entity.
     $typed_data_ids = $this->getTypedDataIds($data['_links']['type']);
+    // Figure out the language to use.
+    if (isset($data['langcode'])) {
+      $langcode = $data['langcode'][0]['value'];
+    }
+    else {
+      $langcode = language_get_default_langcode($typed_data_ids['entity_type'], $typed_data_ids['bundle']);
+    }
+
     $entity = entity_create($typed_data_ids['entity_type'], array('langcode' => $langcode, 'type' => $typed_data_ids['bundle']));
 
     // @todo Handle data in _links and _embedded, http://drupal.org/node/1880424