diff --git a/fillpdf.install b/fillpdf.install
index 11b969de5c8abbc502090f96d3c41fe579e6040d..0f4a91004eae72e2f29e5abf804347b8fe651090 100644
--- a/fillpdf.install
+++ b/fillpdf.install
@@ -227,7 +227,10 @@ function fillpdf_update_8111() {
     ->setDescription("Select the type of PDFtk encryption you'd like to use. You should choose 128-bit unless you know otherwise.")
     ->setCardinality(1)
     ->setSettings([
-      'allowed_values_function' => [PdftkPdfBackend::class, 'getEncryptionOptions'],
+      'allowed_values_function' => [
+        PdftkPdfBackend::class,
+        'getEncryptionOptions',
+      ],
     ])
     ->setDisplayOptions('form', [
       'type' => 'options_select',
@@ -239,7 +242,10 @@ function fillpdf_update_8111() {
     ->setCardinality(-1)
     ->setDescription('Choose the permissions the user should have for the encrypted PDF. If they enter the Owner Password, they will be able to unlock it. <strong>If you do not specify any permissions, then none of these operations will be allowed.</strong>')
     ->setSettings([
-      'allowed_values_function' => [PdftkPdfBackend::class, 'getUserPermissionList'],
+      'allowed_values_function' => [
+        PdftkPdfBackend::class,
+        'getUserPermissionList',
+      ],
     ])
     ->setDisplayOptions('form', [
       'type' => 'options_select',
diff --git a/src/Entity/FillPdfForm.php b/src/Entity/FillPdfForm.php
index 9351e90047c5431e91a4f7b0dbef8e1e641c30bc..b54da353af58c55ad380920472f1fde98286fdce 100644
--- a/src/Entity/FillPdfForm.php
+++ b/src/Entity/FillPdfForm.php
@@ -159,7 +159,10 @@ class FillPdfForm extends ContentEntityBase implements FillPdfFormInterface {
       ->setDescription("Select the type of PDFtk encryption you'd like to use. You should choose 128-bit unless you know otherwise.")
       ->setCardinality(1)
       ->setSettings([
-        'allowed_values_function' => [PdftkPdfBackend::class, 'getEncryptionOptions'],
+        'allowed_values_function' => [
+          PdftkPdfBackend::class,
+          'getEncryptionOptions',
+        ],
       ])
       ->setDefaultValue(NULL)
       ->setDisplayOptions('form', [
@@ -172,7 +175,10 @@ class FillPdfForm extends ContentEntityBase implements FillPdfFormInterface {
       ->setCardinality(-1)
       ->setDescription('Choose the permissions the user should have for the encrypted PDF. If they enter the Owner Password, they will be able to unlock it. <strong>If you do not specify any permissions, then none of these operations will be allowed.</strong>')
       ->setSettings([
-        'allowed_values_function' => [PdftkPdfBackend::class, 'getUserPermissionList'],
+        'allowed_values_function' => [
+          PdftkPdfBackend::class,
+          'getUserPermissionList',
+        ],
       ])
       ->setDisplayOptions('form', [
         'type' => 'options_buttons',
diff --git a/src/Form/FillPdfSettingsForm.php b/src/Form/FillPdfSettingsForm.php
index 93dbc81b5b81a4437b609b75aa78344d074759a5..beb44a87084369a9612317885198ff6edbd668ac 100644
--- a/src/Form/FillPdfSettingsForm.php
+++ b/src/Form/FillPdfSettingsForm.php
@@ -321,8 +321,14 @@ class FillPdfSettingsForm extends ConfigFormBase {
       // @todo We're working around Core issue #2190333, resp. #2854166.
       // Remove once one of these landed. See:
       // https://www.drupal.org/project/drupal/issues/2854166.
-      $form['shell_locale']['#process'][] = ['Drupal\Core\Render\Element\Select', 'processGroup'];
-      $form['shell_locale']['#pre_render'][] = ['Drupal\Core\Render\Element\Select', 'preRenderGroup'];
+      $form['shell_locale']['#process'][] = [
+        'Drupal\Core\Render\Element\Select',
+        'processGroup',
+      ];
+      $form['shell_locale']['#pre_render'][] = [
+        'Drupal\Core\Render\Element\Select',
+        'preRenderGroup',
+      ];
     }
 
     return $form;
diff --git a/src/Plugin/PdfBackend/FillPdfServicePdfBackend.php b/src/Plugin/PdfBackend/FillPdfServicePdfBackend.php
index 402f85ef70094d8df7220512b73ebac952332232..24d90d22ec1896be504e6c19305e57be70f2b303 100644
--- a/src/Plugin/PdfBackend/FillPdfServicePdfBackend.php
+++ b/src/Plugin/PdfBackend/FillPdfServicePdfBackend.php
@@ -42,7 +42,7 @@ class FillPdfServicePdfBackend extends PdfBackendBase {
     if ($result->error == TRUE) {
       // @todo Throw an exception, log a message etc.
       return [];
-    } // after setting error message
+    }
 
     $fields = $result->data;