Bugs fixed

Author: Spomky

src/Bundle/JoseFramework/DependencyInjection/Source/Encryption/AbstractEncryptionSource.php

@@ -39,20 +39,23 @@ public function getNodeDefinition(NodeDefinition $node)
                                 ->useAttributeAsKey('name')
                                 ->isRequired()
                                 ->cannotBeEmpty()
+                                ->requiresAtLeastOneElement()
                                 ->scalarPrototype()->end()
                             ->end()
                             ->arrayNode('content_encryption_algorithms')
                                 ->info('A list of supported content encryption algorithms.')
                                 ->useAttributeAsKey('name')
                                 ->isRequired()
                                 ->cannotBeEmpty()
+                                ->requiresAtLeastOneElement()
                                 ->scalarPrototype()->end()
                             ->end()
                             ->arrayNode('compression_methods')
                                 ->info('A list of supported compression methods.')
                                 ->useAttributeAsKey('name')
                                 ->defaultValue(['DEF'])
                                 ->cannotBeEmpty()
+                                ->requiresAtLeastOneElement()
                                 ->scalarPrototype()->end()
                             ->end()
                             ->arrayNode('tags')

src/Bundle/JoseFramework/DependencyInjection/Source/Signature/AbstractSignatureSource.php

@@ -39,6 +39,7 @@ public function getNodeDefinition(NodeDefinition $node)
                                 ->useAttributeAsKey('name')
                                 ->isRequired()
                                 ->cannotBeEmpty()
+                                ->requiresAtLeastOneElement()
                                 ->scalarPrototype()->end()
                             ->end()
                             ->arrayNode('tags')