diff --git a/src/tests/golden/testdata/flysystem/golden.txt b/src/tests/golden/testdata/flysystem/golden.txt
index 9378e752..90600f08 100644
--- a/src/tests/golden/testdata/flysystem/golden.txt
+++ b/src/tests/golden/testdata/flysystem/golden.txt
@@ -61,6 +61,12 @@ MAYBE   missingPhpdoc: Missing PHPDoc for \League\Flysystem\Adapter\Polyfill\Str
 MAYBE   missingPhpdoc: Missing PHPDoc for \League\Flysystem\Adapter\Polyfill\StreamedWritingTrait::update public method at testdata/flysystem/src/Adapter/Polyfill/StreamedWritingTrait.php:59
     abstract public function update($pash, $contents, Config $config);
                              ^^^^^^
+WARNING nullableType: parameter with null default value should be explicitly nullable at testdata/flysystem/src/FileExistsException.php:21
+    public function __construct($path, $code = 0, BaseException $previous = null)
+                                                  ^^^^^^^^^^^^^
+WARNING nullableType: parameter with null default value should be explicitly nullable at testdata/flysystem/src/FileNotFoundException.php:21
+    public function __construct($path, $code = 0, BaseException $previous = null)
+                                                  ^^^^^^^^^^^^^
 MAYBE   typeHint: Specify the type for the parameter $config in PHPDoc, 'array' type hint too generic at testdata/flysystem/src/Filesystem.php:63
     public function write($path, $contents, array $config = [])
                     ^^^^^
@@ -82,12 +88,24 @@ MAYBE   typeHint: Specify the type for the parameter $config in PHPDoc, 'array'
 MAYBE   typeHint: Specify the type for the parameter $config in PHPDoc, 'array' type hint too generic at testdata/flysystem/src/Filesystem.php:257
     public function createDir($dirname, array $config = [])
                     ^^^^^^^^^
+WARNING nullableType: parameter with null default value should be explicitly nullable at testdata/flysystem/src/Filesystem.php:362
+    public function get($path, Handler $handler = null)
+                               ^^^^^^^
+WARNING nullableType: parameter with null default value should be explicitly nullable at testdata/flysystem/src/FilesystemInterface.php:274
+    public function get($path, Handler $handler = null);
+                               ^^^^^^^
+WARNING nullableType: parameter with null default value should be explicitly nullable at testdata/flysystem/src/Handler.php:28
+    public function __construct(FilesystemInterface $filesystem = null, $path = null)
+                                ^^^^^^^^^^^^^^^^^^^
 WARNING unused: Variable $e is unused (use $_ to ignore this inspection or specify --unused-var-regex flag) at testdata/flysystem/src/Handler.php:129
         } catch (BadMethodCallException $e) {
                                         ^^
 WARNING unused: Variable $e is unused (use $_ to ignore this inspection or specify --unused-var-regex flag) at testdata/flysystem/src/MountManager.php:275
         } catch (PluginNotFoundException $e) {
                                          ^^
+WARNING nullableType: parameter with null default value should be explicitly nullable at testdata/flysystem/src/MountManager.php:642
+    public function get($path, Handler $handler = null)
+                               ^^^^^^^
 MAYBE   deprecatedUntagged: Call to deprecated method {\League\Flysystem\FilesystemInterface}->get() at testdata/flysystem/src/MountManager.php:646
         return $this->getFilesystem($prefix)->get($path);
                                               ^^^
diff --git a/src/tests/golden/testdata/mustache/golden.txt b/src/tests/golden/testdata/mustache/golden.txt
index dfdf00ad..cee434e4 100644
--- a/src/tests/golden/testdata/mustache/golden.txt
+++ b/src/tests/golden/testdata/mustache/golden.txt
@@ -151,12 +151,27 @@ ERROR   undefinedMethod: Call to undefined method {\Mustache_Cache}->setLogger()
 MAYBE   ternarySimplify: Could rewrite as `$this->delimiters ?: '{{ }}'` at testdata/mustache/src/Mustache/Engine.php:628
             'delimiters'      => $this->delimiters ? $this->delimiters : '{{ }}',
                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+WARNING nullableType: parameter with null default value should be explicitly nullable at testdata/mustache/src/Mustache/Engine.php:727
+    private function loadSource($source, Mustache_Cache $cache = null)
+                                         ^^^^^^^^^^^^^^
+WARNING nullableType: parameter with null default value should be explicitly nullable at testdata/mustache/src/Mustache/Exception/SyntaxException.php:24
+    public function __construct($msg, array $token, Exception $previous = null)
+                                                    ^^^^^^^^^
+WARNING nullableType: parameter with null default value should be explicitly nullable at testdata/mustache/src/Mustache/Exception/UnknownFilterException.php:23
+    public function __construct($filterName, Exception $previous = null)
+                                             ^^^^^^^^^
 MAYBE   missingPhpdoc: Missing PHPDoc for \Mustache_Exception_UnknownFilterException::getFilterName public method at testdata/mustache/src/Mustache/Exception/UnknownFilterException.php:34
     public function getFilterName()
                     ^^^^^^^^^^^^^
+WARNING nullableType: parameter with null default value should be explicitly nullable at testdata/mustache/src/Mustache/Exception/UnknownHelperException.php:23
+    public function __construct($helperName, Exception $previous = null)
+                                             ^^^^^^^^^
 MAYBE   missingPhpdoc: Missing PHPDoc for \Mustache_Exception_UnknownHelperException::getHelperName public method at testdata/mustache/src/Mustache/Exception/UnknownHelperException.php:34
     public function getHelperName()
                     ^^^^^^^^^^^^^
+WARNING nullableType: parameter with null default value should be explicitly nullable at testdata/mustache/src/Mustache/Exception/UnknownTemplateException.php:23
+    public function __construct($templateName, Exception $previous = null)
+                                               ^^^^^^^^^
 MAYBE   missingPhpdoc: Missing PHPDoc for \Mustache_Exception_UnknownTemplateException::getTemplateName public method at testdata/mustache/src/Mustache/Exception/UnknownTemplateException.php:34
     public function getTemplateName()
                     ^^^^^^^^^^^^^^^