From fc9c20e9a540559acb19f62e2fa4bfe8ef656dfd Mon Sep 17 00:00:00 2001
From: COQUIL <florent.coquil@atos.net>
Date: Tue, 26 Mar 2019 11:46:34 +0100
Subject: [PATCH] Fix A tree builder without a root node is deprecated since
 Symfony 4.2 and will not be supported anymore in 5.0.

---
 DependencyInjection/Configuration.php | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/DependencyInjection/Configuration.php b/DependencyInjection/Configuration.php
index 11f423a8..02653b00 100644
--- a/DependencyInjection/Configuration.php
+++ b/DependencyInjection/Configuration.php
@@ -34,8 +34,12 @@ class Configuration implements ConfigurationInterface
      */
     public function getConfigTreeBuilder()
     {
-        $treeBuilder = new TreeBuilder();
-        $rootNode = $treeBuilder->root('jms_job_queue');
+        $treeBuilder = new TreeBuilder('jms_job_queue');
+        if (method_exists($treeBuilder, 'getRootNode')) {
+            $rootNode = $treeBuilder->getRootNode();
+        } else {
+            $rootNode = $treeBuilder->root('jms_job_queue');
+        }
 
         $rootNode
             ->children()