[travis] update to trusty

.travis.yml

@@ -1,6 +1,6 @@
 language: php
 
-dist: precise
+dist: trusty
 sudo: false
 
 git:
@@ -13,17 +13,14 @@ addons:
 
 env:
     global:
-        - MIN_PHP=5.3.9
+        - MIN_PHP=5.4.9
         - SYMFONY_PROCESS_PHP_TEST_BINARY=~/.phpenv/versions/5.6/bin/php
 
 matrix:
     include:
-        # Use the newer stack for HHVM as HHVM does not support Precise anymore since a long time and so Precise has an outdated version
         - php: hhvm-3.18
           sudo: required
-          dist: trusty
           group: edge
-        - php: 5.3
         - php: 5.4
         - php: 5.5
         - php: 5.6
@@ -99,7 +96,6 @@ before_install:
       echo opcache.enable_cli = 1 >> $INI
       echo hhvm.jit = 0 >> $INI
       echo apc.enable_cli = 1 >> $INI
-      echo extension = ldap.so >> $INI
       [[ $PHP = 5.* ]] && echo extension = memcache.so >> $INI
       if [[ $PHP = 5.* ]]; then
           echo extension = mongo.so >> $INI

appveyor.yml

@@ -17,8 +17,8 @@ init:
 install:
     - mkdir c:\php && cd c:\php
     - appveyor DownloadFile https://raw.githubusercontent.com/symfony/binary-utils/master/cacert.pem
-    - appveyor DownloadFile https://github.com/symfony/binary-utils/releases/download/v0.1/php-5.3.11-nts-Win32-VC9-x86.zip
+    - appveyor DownloadFile https://github.com/symfony/binary-utils/releases/download/v0.1/php-5.3.9-nts-Win32-VC9-x86.zip
-    - 7z x php-5.3.11-nts-Win32-VC9-x86.zip -y >nul
+    - 7z x php-5.3.9-nts-Win32-VC9-x86.zip -y >nul
     - appveyor DownloadFile https://raw.githubusercontent.com/symfony/binary-utils/master/ICU-51.2-dlls.zip
     - 7z x ICU-51.2-dlls.zip -y >nul
     - appveyor DownloadFile https://github.com/symfony/binary-utils/releases/download/v0.1/php-7.1.3-Win32-VC14-x86.zip
@@ -61,7 +61,7 @@ test_script:
     - cd c:\php && 7z x php-7.1.3-Win32-VC14-x86.zip -y >nul && copy /Y php.ini-min php.ini
     - cd c:\projects\symfony
     - php phpunit src\Symfony --exclude-group benchmark,intl-data || SET X=!errorlevel!
-    - cd c:\php && 7z x php-5.3.11-nts-Win32-VC9-x86.zip -y >nul && copy /Y php.ini-min php.ini
+    - cd c:\php && 7z x php-5.3.9-nts-Win32-VC9-x86.zip -y >nul && copy /Y php.ini-min php.ini
     - cd c:\projects\symfony
     - SET SYMFONY_PHPUNIT_SKIPPED_TESTS=phpunit.skipped
     - php phpunit src\Symfony --exclude-group benchmark,intl-data || SET X=!errorlevel!

src/Symfony/Bundle/SecurityBundle/composer.json

@@ -23,20 +23,20 @@
         "symfony/http-kernel": "~2.7"
     },
     "require-dev": {
-        "symfony/browser-kit": "~2.4",
+        "symfony/browser-kit": "~2.7",
         "symfony/console": "~2.7",
-        "symfony/css-selector": "^2.0.5",
+        "symfony/css-selector": "^2.7",
-        "symfony/dependency-injection": "^2.6.6",
+        "symfony/dependency-injection": "^2.7",
-        "symfony/dom-crawler": "^2.0.5",
+        "symfony/dom-crawler": "^2.7",
         "symfony/form": "~2.7.15|^2.8.8",
         "symfony/framework-bundle": "~2.7.25|^2.8.18",
         "symfony/http-foundation": "~2.7",
         "symfony/twig-bundle": "~2.7",
         "symfony/twig-bridge": "^2.7.4",
-        "symfony/process": "^2.0.5",
+        "symfony/process": "^2.7",
-        "symfony/validator": "~2.5",
+        "symfony/validator": "~2.7",
-        "symfony/yaml": "^2.0.5",
+        "symfony/yaml": "^2.7",
-        "symfony/expression-language": "~2.6",
+        "symfony/expression-language": "~2.7",
         "doctrine/doctrine-bundle": "~1.2",
         "twig/twig": "~1.34|~2.4",
         "ircmaxell/password-compat": "~1.0"

src/Symfony/Component/HttpFoundation/JsonResponse.php

@@ -121,7 +121,7 @@ class JsonResponse extends Response
             $data = json_encode($data, $this->encodingOptions);
         } else {
             try {
-                if (\PHP_VERSION_ID < 50400) {
+                if (!interface_exists('JsonSerializable', false)) {
                     // PHP 5.3 triggers annoying warnings for some
                     // types that can't be serialized as JSON (INF, resources, etc.)
                     // but doesn't provide the JsonSerializable interface.
@@ -153,7 +153,7 @@ class JsonResponse extends Response
                 if (\PHP_VERSION_ID < 50500) {
                     restore_error_handler();
                 }
-                if (\PHP_VERSION_ID >= 50400 && 'Exception' === get_class($e) && 0 === strpos($e->getMessage(), 'Failed calling ')) {
+                if (interface_exists('JsonSerializable', false) && 'Exception' === get_class($e) && 0 === strpos($e->getMessage(), 'Failed calling ')) {
                     throw $e->getPrevious() ?: $e;
                 }
                 throw $e;

src/Symfony/Component/HttpFoundation/Tests/JsonResponseTest.php

@@ -206,10 +206,13 @@ class JsonResponseTest extends TestCase
     /**
      * @expectedException \Exception
      * @expectedExceptionMessage This error is expected
-     * @requires PHP 5.4
      */
     public function testSetContentJsonSerializeError()
     {
+        if (!interface_exists('JsonSerializable', false)) {
+            $this->markTestSkipped('JsonSerializable is required.');
+        }
+
         $serializable = new JsonSerializableObject();
 
         JsonResponse::create($serializable);
@@ -224,7 +227,7 @@ class JsonResponseTest extends TestCase
     }
 }
 
-if (interface_exists('JsonSerializable')) {
+if (interface_exists('JsonSerializable', false)) {
     class JsonSerializableObject implements \JsonSerializable
     {
         public function jsonSerialize()