diff --git a/src/Configuration/ApplicationConfigurationFactoryInterface.php b/src/Configuration/ApplicationConfigurationFactoryInterface.php
old mode 100644
new mode 100755
diff --git a/src/Configuration/ApplicationConfigurationInterface.php b/src/Configuration/ApplicationConfigurationInterface.php
old mode 100644
new mode 100755
index a85a80c..3005c1c
--- a/src/Configuration/ApplicationConfigurationInterface.php
+++ b/src/Configuration/ApplicationConfigurationInterface.php
@@ -8,6 +8,7 @@ interface ApplicationConfigurationInterface
      * @param string $key
      * @param mixed|null $default
      * @param bool $nullable
+     *
      * @return mixed
      */
     public function get(string $key, mixed $default = null, bool $nullable = true): mixed;
diff --git a/src/Configuration/DefaultApplicationConfiguration.php b/src/Configuration/DefaultApplicationConfiguration.php
old mode 100644
new mode 100755
index 536d1e6..baee906
--- a/src/Configuration/DefaultApplicationConfiguration.php
+++ b/src/Configuration/DefaultApplicationConfiguration.php
@@ -28,7 +28,7 @@ public function get(string $key, $default = null, bool $nullable = true): mixed
 
         $value = $this->getValue($key, $default);
 
-        if($nullable === false && !$value) {
+        if($nullable === false && !$value && !is_numeric($value)) {
             throw new InvalidConfigurationException(sprintf('Configuration key "%s" can not be NULL', $key));
         }
 
diff --git a/src/Configuration/DefaultApplicationConfigurationFactory.php b/src/Configuration/DefaultApplicationConfigurationFactory.php
old mode 100644
new mode 100755
diff --git a/src/Configuration/Exception/InvalidConfigurationException.php b/src/Configuration/Exception/InvalidConfigurationException.php
old mode 100644
new mode 100755
diff --git a/src/Configuration/PluginConfiguration.php b/src/Configuration/PluginConfiguration.php
old mode 100644
new mode 100755
index faaac50..c30219d
--- a/src/Configuration/PluginConfiguration.php
+++ b/src/Configuration/PluginConfiguration.php
@@ -7,17 +7,21 @@ class PluginConfiguration implements PluginConfigurationInterface
     /**
      * @param ApplicationConfigurationInterface $configuration
      */
-    public function __construct(protected ApplicationConfigurationInterface $configuration)
+    public function __construct(protected readonly ApplicationConfigurationInterface $configuration)
     {
     }
 
     /**
-     * @param  string $list
+     * @param  string|array $list
      * @param  string $separator
      * @return string[]
      */
-    protected function explodeStringToArray(string $list, string $separator = ','): array
+    protected function explodeStringToArray(string|array $list, string $separator = ','): array
     {
+        if(is_array($list)) {
+            return $list;
+        }
+
         if($separator === '') {
             return [$list];
         }
diff --git a/src/Configuration/PluginConfigurationInterface.php b/src/Configuration/PluginConfigurationInterface.php
old mode 100644
new mode 100755
diff --git a/src/Configuration/PluginRoutingKeyConfiguration.php b/src/Configuration/PluginRoutingKeyConfiguration.php
old mode 100644
new mode 100755
index c63e2f3..bd12a1f
--- a/src/Configuration/PluginRoutingKeyConfiguration.php
+++ b/src/Configuration/PluginRoutingKeyConfiguration.php
@@ -10,7 +10,7 @@ class PluginRoutingKeyConfiguration extends PluginConfiguration
      */
     public function __construct(
         ApplicationConfigurationInterface $configuration,
-    protected string $configRoutingKey
+        protected readonly string $configRoutingKey
     )
     {
         parent::__construct($configuration);
diff --git a/src/Configuration/Resolver/PluginConfigurationClassResolver.php b/src/Configuration/Resolver/PluginConfigurationClassResolver.php
old mode 100644
new mode 100755
diff --git a/src/Configuration/Resolver/PluginConfigurationClassResolverInterface.php b/src/Configuration/Resolver/PluginConfigurationClassResolverInterface.php
old mode 100644
new mode 100755
diff --git a/src/Configuration/Resolver/PluginNameResolver.php b/src/Configuration/Resolver/PluginNameResolver.php
old mode 100644
new mode 100755
diff --git a/src/Configuration/Resolver/PluginNameShortResolver.php b/src/Configuration/Resolver/PluginNameShortResolver.php
old mode 100644
new mode 100755
diff --git a/src/Container/ApplicationContainerFactoryInterface.php b/src/Container/ApplicationContainerFactoryInterface.php
old mode 100644
new mode 100755
diff --git a/src/Container/Impl/ApplicationContainerFactory.php b/src/Container/Impl/ApplicationContainerFactory.php
old mode 100644
new mode 100755
diff --git a/src/Kernel.php b/src/Kernel.php
old mode 100644
new mode 100755
diff --git a/src/KernelBuilder.php b/src/KernelBuilder.php
old mode 100644
new mode 100755
diff --git a/src/KernelInterface.php b/src/KernelInterface.php
old mode 100644
new mode 100755
index e83f30c..5aee707
--- a/src/KernelInterface.php
+++ b/src/KernelInterface.php
@@ -31,7 +31,7 @@ public function terminate(): void;
     /**
      * @param string|null $interfaceInherited
      *
-     * @return iterable
+     * @return iterable<ApplicationPluginInterface>
      */
     public function plugins(string $interfaceInherited = null): iterable;
 }
diff --git a/src/Plugin/AbstractPlugin.php b/src/Plugin/AbstractPlugin.php
old mode 100644
new mode 100755
index 4a0cb7b..1c1e7bf
--- a/src/Plugin/AbstractPlugin.php
+++ b/src/Plugin/AbstractPlugin.php
@@ -8,7 +8,7 @@
 
 abstract class AbstractPlugin implements ApplicationPluginInterface
 {
-    public function __construct(protected PluginConfiguration $configuration)
+    public function __construct(protected readonly PluginConfiguration $configuration)
     {
     }
 
diff --git a/src/Plugin/ApplicationPluginInterface.php b/src/Plugin/ApplicationPluginInterface.php
old mode 100644
new mode 100755
diff --git a/src/Plugin/BootLoader/ProvideDependenciesBootLoader.php b/src/Plugin/BootLoader/ProvideDependenciesBootLoader.php
deleted file mode 100644
index b63dc5e..0000000
--- a/src/Plugin/BootLoader/ProvideDependenciesBootLoader.php
+++ /dev/null
@@ -1,22 +0,0 @@
-<?php
-
-namespace Micro\Framework\Kernel\Plugin\BootLoader;
-
-use Micro\Component\DependencyInjection\Container;
-use Micro\Framework\Kernel\Plugin\ApplicationPluginInterface;
-use Micro\Framework\Kernel\Plugin\PluginBootLoaderInterface;
-
-class ProvideDependenciesBootLoader implements PluginBootLoaderInterface
-{
-    public function __construct(private Container $container)
-    {
-    }
-
-    /**
-     * {@inheritDoc}
-     */
-    public function boot(ApplicationPluginInterface $applicationPlugin): void
-    {
-        $applicationPlugin->provideDependencies($this->container);
-    }
-}
diff --git a/src/Plugin/PluginBootLoaderInterface.php b/src/Plugin/PluginBootLoaderInterface.php
old mode 100644
new mode 100755