diff --git a/src/Symfony/Component/Cache/Traits/PdoTrait.php b/src/Symfony/Component/Cache/Traits/PdoTrait.php
index af1a7b22f6..ec34e72fb5 100644
--- a/src/Symfony/Component/Cache/Traits/PdoTrait.php
+++ b/src/Symfony/Component/Cache/Traits/PdoTrait.php
@@ -165,8 +165,11 @@ trait PdoTrait
         if ('' !== $this->namespace) {
             $delete->bindValue(':namespace', sprintf('%s%%', $this->namespace), \PDO::PARAM_STR);
         }
-
-        return $delete->execute();
+        try {
+            return $delete->execute();
+        } catch (TableNotFoundException $e) {
+            return true;
+        }
     }
 
     /**
diff --git a/src/Symfony/Component/Security/Core/Encoder/PasswordEncoderInterface.php b/src/Symfony/Component/Security/Core/Encoder/PasswordEncoderInterface.php
index 8c018be201..e0573051eb 100644
--- a/src/Symfony/Component/Security/Core/Encoder/PasswordEncoderInterface.php
+++ b/src/Symfony/Component/Security/Core/Encoder/PasswordEncoderInterface.php
@@ -11,6 +11,8 @@
 
 namespace Symfony\Component\Security\Core\Encoder;
 
+use Symfony\Component\Security\Core\Exception\BadCredentialsException;
+
 /**
  * PasswordEncoderInterface is the interface for all encoders.
  *
@@ -25,6 +27,9 @@ interface PasswordEncoderInterface
      * @param string $salt The salt
      *
      * @return string The encoded password
+     *
+     * @throws BadCredentialsException   If the raw password is invalid, e.g. excessively long
+     * @throws \InvalidArgumentException If the salt is invalid
      */
     public function encodePassword($raw, $salt);
 
@@ -36,6 +41,8 @@ interface PasswordEncoderInterface
      * @param string $salt    The salt
      *
      * @return bool true if the password is valid, false otherwise
+     *
+     * @throws \InvalidArgumentException If the salt is invalid
      */
     public function isPasswordValid($encoded, $raw, $salt);
 }
diff --git a/src/Symfony/Component/Security/Core/Resources/translations/security.nb.xlf b/src/Symfony/Component/Security/Core/Resources/translations/security.nb.xlf
index c5ab83efc5..57016a4a4c 100644
--- a/src/Symfony/Component/Security/Core/Resources/translations/security.nb.xlf
+++ b/src/Symfony/Component/Security/Core/Resources/translations/security.nb.xlf
@@ -16,7 +16,7 @@
             </trans-unit>
             <trans-unit id="4">
                 <source>Invalid credentials.</source>
-                <target>Ugyldig påloggingsinformasjonen.</target>
+                <target>Ugyldig påloggingsinformasjon.</target>
             </trans-unit>
             <trans-unit id="5">
                 <source>Cookie has already been used by someone else.</source>
diff --git a/src/Symfony/Component/Security/Core/Resources/translations/security.no.xlf b/src/Symfony/Component/Security/Core/Resources/translations/security.no.xlf
index c5ab83efc5..57016a4a4c 100644
--- a/src/Symfony/Component/Security/Core/Resources/translations/security.no.xlf
+++ b/src/Symfony/Component/Security/Core/Resources/translations/security.no.xlf
@@ -16,7 +16,7 @@
             </trans-unit>
             <trans-unit id="4">
                 <source>Invalid credentials.</source>
-                <target>Ugyldig påloggingsinformasjonen.</target>
+                <target>Ugyldig påloggingsinformasjon.</target>
             </trans-unit>
             <trans-unit id="5">
                 <source>Cookie has already been used by someone else.</source>