diff --git a/.scrutinizer.yml b/.scrutinizer.yml
index c7d3c9e5..40cc99a4 100644
--- a/.scrutinizer.yml
+++ b/.scrutinizer.yml
@@ -18,7 +18,8 @@ tools:
         enabled: true
         timeout: 900
     php_sim:
-        min_mass: 16
+        enabled: true
+        min_mass: 30
     php_pdepend: true
     php_analyzer: true
     sensiolabs_security_checker: true
diff --git a/src/PhpWord/Shared/XMLReader.php b/src/PhpWord/Shared/XMLReader.php
index 415526ee..1b9553cb 100644
--- a/src/PhpWord/Shared/XMLReader.php
+++ b/src/PhpWord/Shared/XMLReader.php
@@ -96,7 +96,7 @@ class XMLReader
      * @param string $path
      * @return \DOMElement|null
      */
-    public function getElement($path, \DOMElement $contextNode)
+    public function getElement($path, \DOMElement $contextNode = null)
     {
         $elements = $this->getElements($path, $contextNode);
         if ($elements->length > 0) {
@@ -113,16 +113,17 @@ class XMLReader
      * @param string $path
      * @return string|null
      */
-    public function getAttribute($attribute, \DOMElement $contextNode, $path = null)
+    public function getAttribute($attribute, \DOMElement $contextNode = null, $path = null)
     {
-        if (is_null($path)) {
-            $return = $contextNode->getAttribute($attribute);
-        } else {
+        $return = null;
+        if ($path !== null) {
             $elements = $this->getElements($path, $contextNode);
             if ($elements->length > 0) {
                 $return = $elements->item(0)->getAttribute($attribute);
-            } else {
-                $return = null;
+            }
+        } else {
+            if ($contextNode !== null) {
+                $return = $contextNode->getAttribute($attribute);
             }
         }
 
@@ -135,7 +136,7 @@ class XMLReader
      * @param string $path
      * @return string|null
      */
-    public function getValue($path, \DOMElement $contextNode)
+    public function getValue($path, \DOMElement $contextNode = null)
     {
         $elements = $this->getElements($path, $contextNode);
         if ($elements->length > 0) {
@@ -151,7 +152,7 @@ class XMLReader
      * @param string $path
      * @return integer
      */
-    public function countElements($path, \DOMElement $contextNode)
+    public function countElements($path, \DOMElement $contextNode = null)
     {
         $elements = $this->getElements($path, $contextNode);
 
@@ -164,7 +165,7 @@ class XMLReader
      * @param string $path
      * @return boolean
      */
-    public function elementExists($path, \DOMElement $contextNode)
+    public function elementExists($path, \DOMElement $contextNode = null)
     {
         return $this->getElements($path, $contextNode)->length > 0;
     }
diff --git a/src/PhpWord/Writer/RTF/Element/AbstractElement.php b/src/PhpWord/Writer/RTF/Element/AbstractElement.php
index d6b48ca8..89bcfd37 100644
--- a/src/PhpWord/Writer/RTF/Element/AbstractElement.php
+++ b/src/PhpWord/Writer/RTF/Element/AbstractElement.php
@@ -51,9 +51,9 @@ class AbstractElement extends \PhpOffice\PhpWord\Writer\HTML\Element\AbstractEle
     protected function getStyles()
     {
         /** @var \PhpOffice\PhpWord\Writer\RTF $parentWriter Scrutinizer type hint */
-        /** @var \PhpOffice\PhpWord\Element\Text $element Scrutinizer type hint */
-
         $parentWriter = $this->parentWriter;
+
+        /** @var \PhpOffice\PhpWord\Element\Text $element Scrutinizer type hint */
         $element = $this->element;
 
         // Font style
diff --git a/src/PhpWord/Writer/RTF/Element/Text.php b/src/PhpWord/Writer/RTF/Element/Text.php
index cee1b157..abdf888d 100644
--- a/src/PhpWord/Writer/RTF/Element/Text.php
+++ b/src/PhpWord/Writer/RTF/Element/Text.php
@@ -32,9 +32,8 @@ class Text extends AbstractElement
     public function write()
     {
         /** @var \PhpOffice\PhpWord\Element\Text $element Scrutinizer type hint */
-
-        $elementClass = str_replace('\\Writer\\RTF', '', get_class($this));
         $element = $this->element;
+        $elementClass = str_replace('\\Writer\\RTF', '', get_class($this));
         if (!$element instanceof $elementClass) {
             return;
         }