diff --git a/.gitignore b/.gitignore
index 3d0b430..83129c3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,3 @@
 .php_cs.cache
+vendor
+composer.lock
diff --git a/DataCollector/HydrationDataCollector.php b/DataCollector/HydrationDataCollector.php
index fc3c901..af920e4 100644
--- a/DataCollector/HydrationDataCollector.php
+++ b/DataCollector/HydrationDataCollector.php
@@ -24,13 +24,16 @@ class HydrationDataCollector extends DataCollector
     /**
      * @var HydrationLogger
      */
-    private $hydrationLogger = [];
+    private $hydrationLogger;
 
     public function __construct(EntityManagerInterface $manager)
     {
         $this->hydrationLogger = $manager->getConfiguration()->getHydrationLogger();
     }
 
+    /**
+     * @return void
+     */
     public function collect(Request $request, Response $response, \Throwable $exception = null)
     {
         $this->data['hydrations'] = $this->hydrationLogger->hydrations;
@@ -59,7 +62,7 @@ public function getTime()
     }
 
     /**
-     * {@inheritdoc}
+     * @return string
      */
     public function getName()
     {
@@ -67,7 +70,7 @@ public function getName()
     }
 
     /**
-     * {@inheritdoc}
+     * @return void
      */
     public function reset()
     {
diff --git a/DependencyInjection/Configuration.php b/DependencyInjection/Configuration.php
index e22079e..e6d3a96 100644
--- a/DependencyInjection/Configuration.php
+++ b/DependencyInjection/Configuration.php
@@ -13,7 +13,7 @@
 class Configuration implements ConfigurationInterface
 {
     /**
-     * {@inheritdoc}
+     * @return TreeBuilder
      */
     public function getConfigTreeBuilder()
     {
diff --git a/DependencyInjection/DebeshaDoctrineProfileExtraExtension.php b/DependencyInjection/DebeshaDoctrineProfileExtraExtension.php
index ffe4757..1b9d8b4 100644
--- a/DependencyInjection/DebeshaDoctrineProfileExtraExtension.php
+++ b/DependencyInjection/DebeshaDoctrineProfileExtraExtension.php
@@ -15,7 +15,7 @@
 class DebeshaDoctrineProfileExtraExtension extends Extension
 {
     /**
-     * {@inheritdoc}
+     * @return void
      */
     public function load(array $configs, ContainerBuilder $container)
     {
diff --git a/ORM/HydrationLogger.php b/ORM/HydrationLogger.php
index 58d1996..6daeb35 100644
--- a/ORM/HydrationLogger.php
+++ b/ORM/HydrationLogger.php
@@ -61,6 +61,8 @@ public function start($type)
      *
      * @param int $resultNum
      * @param array $aliasMap
+     *
+     * @return void
      */
     public function stop($resultNum, $aliasMap)
     {
diff --git a/ORM/LoggingConfiguration.php b/ORM/LoggingConfiguration.php
index 7ab7cd3..903c112 100644
--- a/ORM/LoggingConfiguration.php
+++ b/ORM/LoggingConfiguration.php
@@ -20,7 +20,7 @@ public function __construct()
     /**
      * Gets the hydration logger.
      *
-     * @return HydrationLogger
+     * @return HydrationLogger|null
      */
     public function getHydrationLogger()
     {
@@ -33,6 +33,8 @@ public function getHydrationLogger()
      * Sets the hydration logger.
      *
      * @param HydrationLogger $ns
+     *
+     * @return void
      */
     public function setHydrationLogger(HydrationLogger $logger)
     {