diff --git a/composer.json b/composer.json
index 73a2435439da..b6d1e1227264 100644
--- a/composer.json
+++ b/composer.json
@@ -161,7 +161,6 @@
             "tests/Source",
             "tests/Rector/Psr4/MultipleClassFileToPsr4ClassesRector/Source",
             "tests/Rector/Namespace_/PseudoNamespaceToNamespaceRector/Source",
-            "stubs",
             "tests/Issues/Issue1243/Source",
             "packages/Autodiscovery/tests/Rector/FileSystem/MoveInterfacesToContractNamespaceDirectoryRector/Expected",
             "packages/Autodiscovery/tests/Rector/FileSystem/MoveServicesBySuffixToDirectoryRector/Expected"
diff --git a/packages/Symfony/src/Rector/New_/StringToArrayArgumentProcessRector.php b/packages/Symfony/src/Rector/New_/StringToArrayArgumentProcessRector.php
index b8e9c808b2e7..3a6183d2b813 100644
--- a/packages/Symfony/src/Rector/New_/StringToArrayArgumentProcessRector.php
+++ b/packages/Symfony/src/Rector/New_/StringToArrayArgumentProcessRector.php
@@ -17,36 +17,24 @@
 use Rector\RectorDefinition\CodeSample;
 use Rector\RectorDefinition\RectorDefinition;
 use Rector\Util\RectorStrings;
+use Symfony\Component\Console\Helper\ProcessHelper;
+use Symfony\Component\Process\Process;
 
 /**
  * @see https://github.com/symfony/symfony/pull/27821/files
+ *
  * @see \Rector\Symfony\Tests\Rector\New_\StringToArrayArgumentProcessRector\StringToArrayArgumentProcessRectorTest
  */
 final class StringToArrayArgumentProcessRector extends AbstractRector
 {
-    /**
-     * @var string
-     */
-    private $processClass;
-
-    /**
-     * @var string
-     */
-    private $processHelperClass;
-
     /**
      * @var NodeTransformer
      */
     private $nodeTransformer;
 
-    public function __construct(
-        NodeTransformer $nodeTransformer,
-        string $processClass = 'Symfony\Component\Process\Process',
-        string $processHelperClass = 'Symfony\Component\Console\Helper\ProcessHelper'
-    ) {
+    public function __construct(NodeTransformer $nodeTransformer)
+    {
         $this->nodeTransformer = $nodeTransformer;
-        $this->processClass = $processClass;
-        $this->processHelperClass = $processHelperClass;
     }
 
     public function getDefinition(): RectorDefinition
@@ -79,11 +67,11 @@ public function getNodeTypes(): array
      */
     public function refactor(Node $node): ?Node
     {
-        if ($this->isObjectType($node, $this->processClass)) {
+        if ($this->isObjectType($node, Process::class)) {
             return $this->processArgumentPosition($node, 0);
         }
 
-        if ($this->isObjectType($node, $this->processHelperClass)) {
+        if ($this->isObjectType($node, ProcessHelper::class)) {
             return $this->processArgumentPosition($node, 1);
         }
 
diff --git a/packages/Symfony/tests/Rector/New_/StringToArrayArgumentProcessRector/Fixture/fixture.php.inc b/packages/Symfony/tests/Rector/New_/StringToArrayArgumentProcessRector/Fixture/fixture.php.inc
index af3a66e5d0ee..ca94ddb09fc2 100644
--- a/packages/Symfony/tests/Rector/New_/StringToArrayArgumentProcessRector/Fixture/fixture.php.inc
+++ b/packages/Symfony/tests/Rector/New_/StringToArrayArgumentProcessRector/Fixture/fixture.php.inc
@@ -2,7 +2,7 @@
 
 namespace Rector\Symfony\Tests\Rector\New_\StringToArrayArgumentProcessRector\Fixture;
 
-use Rector\Symfony\Tests\Rector\New_\StringToArrayArgumentProcessRector\Source\Process;
+use Symfony\Component\Process\Process;
 
 function stringToArgumentArray()
 {
@@ -27,7 +27,7 @@ function stringToArgumentArray()
 
 namespace Rector\Symfony\Tests\Rector\New_\StringToArrayArgumentProcessRector\Fixture;
 
-use Rector\Symfony\Tests\Rector\New_\StringToArrayArgumentProcessRector\Source\Process;
+use Symfony\Component\Process\Process;
 
 function stringToArgumentArray()
 {
diff --git a/packages/Symfony/tests/Rector/New_/StringToArrayArgumentProcessRector/Fixture/fixture3.php.inc b/packages/Symfony/tests/Rector/New_/StringToArrayArgumentProcessRector/Fixture/fixture3.php.inc
index fc6ea03c876f..e72a353f0060 100644
--- a/packages/Symfony/tests/Rector/New_/StringToArrayArgumentProcessRector/Fixture/fixture3.php.inc
+++ b/packages/Symfony/tests/Rector/New_/StringToArrayArgumentProcessRector/Fixture/fixture3.php.inc
@@ -1,6 +1,8 @@
 <?php
 
-use Rector\Symfony\Tests\Rector\New_\StringToArrayArgumentProcessRector\Source\Process;
+namespace Rector\Symfony\Tests\Rector\New_\StringToArrayArgumentProcessRector\Fixture;
+
+use Symfony\Component\Process\Process;
 
 function stringToArgumentArray3()
 {
@@ -20,7 +22,9 @@ function stringToArgumentArray3()
 -----
 <?php
 
-use Rector\Symfony\Tests\Rector\New_\StringToArrayArgumentProcessRector\Source\Process;
+namespace Rector\Symfony\Tests\Rector\New_\StringToArrayArgumentProcessRector\Fixture;
+
+use Symfony\Component\Process\Process;
 
 function stringToArgumentArray3()
 {
diff --git a/packages/Symfony/tests/Rector/New_/StringToArrayArgumentProcessRector/Fixture/fixture4.php.inc b/packages/Symfony/tests/Rector/New_/StringToArrayArgumentProcessRector/Fixture/fixture4.php.inc
index c69a00babef9..afcfb33ebb61 100644
--- a/packages/Symfony/tests/Rector/New_/StringToArrayArgumentProcessRector/Fixture/fixture4.php.inc
+++ b/packages/Symfony/tests/Rector/New_/StringToArrayArgumentProcessRector/Fixture/fixture4.php.inc
@@ -2,7 +2,7 @@
 
 namespace Rector\Symfony\Tests\Rector\New_\StringToArrayArgumentProcessRector\Fixture;
 
-use Rector\Symfony\Tests\Rector\New_\StringToArrayArgumentProcessRector\Source\Process;
+use Symfony\Component\Process\Process;
 
 function stringToArgumentArray4()
 {
@@ -15,7 +15,7 @@ function stringToArgumentArray4()
 
 namespace Rector\Symfony\Tests\Rector\New_\StringToArrayArgumentProcessRector\Fixture;
 
-use Rector\Symfony\Tests\Rector\New_\StringToArrayArgumentProcessRector\Source\Process;
+use Symfony\Component\Process\Process;
 
 function stringToArgumentArray4()
 {
diff --git a/packages/Symfony/tests/Rector/New_/StringToArrayArgumentProcessRector/Fixture/fixture2.php.inc b/packages/Symfony/tests/Rector/New_/StringToArrayArgumentProcessRector/Fixture/process_helper.php.inc
similarity index 54%
rename from packages/Symfony/tests/Rector/New_/StringToArrayArgumentProcessRector/Fixture/fixture2.php.inc
rename to packages/Symfony/tests/Rector/New_/StringToArrayArgumentProcessRector/Fixture/process_helper.php.inc
index 8bf69a5b405d..c89219f1dd1d 100644
--- a/packages/Symfony/tests/Rector/New_/StringToArrayArgumentProcessRector/Fixture/fixture2.php.inc
+++ b/packages/Symfony/tests/Rector/New_/StringToArrayArgumentProcessRector/Fixture/process_helper.php.inc
@@ -1,7 +1,8 @@
 <?php
 
-use Rector\Symfony\Tests\Rector\New_\StringToArrayArgumentProcessRector\Source\ProcessHelper;
-use Symfony\Component\Console\Output\ConsoleOutput;
+namespace Rector\Symfony\Tests\Rector\New_\StringToArrayArgumentProcessRector\Fixture;
+
+use Symfony\Component\Console\Helper\ProcessHelper;
 
 function stringToArgumentArray2()
 {
@@ -15,8 +16,9 @@ function stringToArgumentArray2()
 -----
 <?php
 
-use Rector\Symfony\Tests\Rector\New_\StringToArrayArgumentProcessRector\Source\ProcessHelper;
-use Symfony\Component\Console\Output\ConsoleOutput;
+namespace Rector\Symfony\Tests\Rector\New_\StringToArrayArgumentProcessRector\Fixture;
+
+use Symfony\Component\Console\Helper\ProcessHelper;
 
 function stringToArgumentArray2()
 {
diff --git a/packages/Symfony/tests/Rector/New_/StringToArrayArgumentProcessRector/Fixture/skip_form_add.php.inc b/packages/Symfony/tests/Rector/New_/StringToArrayArgumentProcessRector/Fixture/skip_form_add.php.inc
new file mode 100644
index 000000000000..03607247a310
--- /dev/null
+++ b/packages/Symfony/tests/Rector/New_/StringToArrayArgumentProcessRector/Fixture/skip_form_add.php.inc
@@ -0,0 +1,23 @@
+<?php
+
+namespace Rector\Symfony\Tests\Rector\New_\StringToArrayArgumentProcessRector\Fixture;
+
+use stdClass;
+
+class SkipFormAdd
+{
+    public function run(FormBuilderInterface $formBuilder)
+    {
+        $formBuilder->add('q', stdClass::class);
+
+    }
+}
+
+interface FormBuilderInterface
+{
+    /**
+     * @param string|FormBuilderInterface $child
+     * @param string|null                 $type
+     */
+    public function add($child, $type = null, array $options = []);
+}
diff --git a/packages/Symfony/tests/Rector/New_/StringToArrayArgumentProcessRector/Fixture/with_sprintf.php.inc b/packages/Symfony/tests/Rector/New_/StringToArrayArgumentProcessRector/Fixture/with_sprintf.php.inc
index 2b36c88bf2f3..602be37567b5 100644
--- a/packages/Symfony/tests/Rector/New_/StringToArrayArgumentProcessRector/Fixture/with_sprintf.php.inc
+++ b/packages/Symfony/tests/Rector/New_/StringToArrayArgumentProcessRector/Fixture/with_sprintf.php.inc
@@ -2,7 +2,7 @@
 
 namespace Rector\Symfony\Tests\Rector\New_\StringToArrayArgumentProcessRector\Fixture;
 
-use Rector\Symfony\Tests\Rector\New_\StringToArrayArgumentProcessRector\Source\Process;
+use Symfony\Component\Process\Process;
 
 class WithSprintf
 {
@@ -18,7 +18,7 @@ class WithSprintf
 
 namespace Rector\Symfony\Tests\Rector\New_\StringToArrayArgumentProcessRector\Fixture;
 
-use Rector\Symfony\Tests\Rector\New_\StringToArrayArgumentProcessRector\Source\Process;
+use Symfony\Component\Process\Process;
 
 class WithSprintf
 {
diff --git a/packages/Symfony/tests/Rector/New_/StringToArrayArgumentProcessRector/StringToArrayArgumentProcessRectorTest.php b/packages/Symfony/tests/Rector/New_/StringToArrayArgumentProcessRector/StringToArrayArgumentProcessRectorTest.php
index 55849e9576ba..48c48a7aa5f8 100644
--- a/packages/Symfony/tests/Rector/New_/StringToArrayArgumentProcessRector/StringToArrayArgumentProcessRectorTest.php
+++ b/packages/Symfony/tests/Rector/New_/StringToArrayArgumentProcessRector/StringToArrayArgumentProcessRectorTest.php
@@ -4,8 +4,6 @@
 
 use Iterator;
 use Rector\Symfony\Rector\New_\StringToArrayArgumentProcessRector;
-use Rector\Symfony\Tests\Rector\New_\StringToArrayArgumentProcessRector\Source\Process;
-use Rector\Symfony\Tests\Rector\New_\StringToArrayArgumentProcessRector\Source\ProcessHelper;
 use Rector\Testing\PHPUnit\AbstractRectorTestCase;
 
 final class StringToArrayArgumentProcessRectorTest extends AbstractRectorTestCase
@@ -21,23 +19,16 @@ public function test(string $file): void
     public function provideDataForTest(): Iterator
     {
         yield [__DIR__ . '/Fixture/fixture.php.inc'];
-        yield [__DIR__ . '/Fixture/fixture2.php.inc'];
+        yield [__DIR__ . '/Fixture/process_helper.php.inc'];
         yield [__DIR__ . '/Fixture/fixture3.php.inc'];
         yield [__DIR__ . '/Fixture/fixture4.php.inc'];
         yield [__DIR__ . '/Fixture/with_sprintf.php.inc'];
         yield [__DIR__ . '/Fixture/skip_anonymous_class.php.inc'];
+        yield [__DIR__ . '/Fixture/skip_form_add.php.inc'];
     }
 
-    /**
-     * @return mixed[]
-     */
-    protected function getRectorsWithConfiguration(): array
+    protected function getRectorClass(): string
     {
-        return [
-            StringToArrayArgumentProcessRector::class => [
-                '$processClass' => Process::class,
-                '$processHelperClass' => ProcessHelper::class,
-            ],
-        ];
+        return StringToArrayArgumentProcessRector::class;
     }
 }
diff --git a/stubs/Symfony/Component/Console/Helper/ProcessHelper.php b/stubs/Symfony/Component/Console/Helper/ProcessHelper.php
new file mode 100644
index 000000000000..2177731db1f1
--- /dev/null
+++ b/stubs/Symfony/Component/Console/Helper/ProcessHelper.php
@@ -0,0 +1,12 @@
+<?php declare(strict_types=1);
+
+namespace Symfony\Component\Console\Helper;
+
+if (class_exists('Symfony\Component\Console\Helper\ProcessHelper')) {
+    return;
+}
+
+class ProcessHelper
+{
+
+}
diff --git a/stubs/Symfony/Component/Process/Process.php b/stubs/Symfony/Component/Process/Process.php
new file mode 100644
index 000000000000..681616b95d87
--- /dev/null
+++ b/stubs/Symfony/Component/Process/Process.php
@@ -0,0 +1,12 @@
+<?php declare(strict_types=1);
+
+namespace Symfony\Component\Process;
+
+if (class_exists('Symfony\Component\Process\Process')) {
+    return;
+}
+
+class Process
+{
+
+}