diff --git a/src/Metadata/Property/Factory/CachedPropertyMetadataFactory.php b/src/Metadata/Property/Factory/CachedPropertyMetadataFactory.php
index 7acaef6953e..7dd131a9d72 100644
--- a/src/Metadata/Property/Factory/CachedPropertyMetadataFactory.php
+++ b/src/Metadata/Property/Factory/CachedPropertyMetadataFactory.php
@@ -28,7 +28,7 @@ final class CachedPropertyMetadataFactory implements PropertyMetadataFactoryInte
 
     private $cacheItemPool;
     private $decorated;
-    private $memoryCache = [];
+    private $localCache = [];
 
     public function __construct(CacheItemPoolInterface $cacheItemPool, PropertyMetadataFactoryInterface $decorated)
     {
@@ -41,18 +41,18 @@ public function __construct(CacheItemPoolInterface $cacheItemPool, PropertyMetad
      */
     public function create(string $resourceClass, string $property, array $options = []): PropertyMetadata
     {
-        $localKey = serialize([$resourceClass, $property, $options]);
-        if (isset($this->memoryCache[$localKey])) {
-            return $this->memoryCache[$localKey];
+        $localCacheKey = serialize([$resourceClass, $property, $options]);
+        if (isset($this->localCache[$localCacheKey])) {
+            return $this->localCache[$localCacheKey];
         }
 
-        $cacheKey = self::CACHE_KEY_PREFIX.md5($localKey);
+        $cacheKey = self::CACHE_KEY_PREFIX.md5($localCacheKey);
 
         try {
             $cacheItem = $this->cacheItemPool->getItem($cacheKey);
 
             if ($cacheItem->isHit()) {
-                return $this->memoryCache[$localKey] = $cacheItem->get();
+                return $this->localCache[$localCacheKey] = $cacheItem->get();
             }
         } catch (CacheException $e) {
             // do nothing
@@ -61,12 +61,12 @@ public function create(string $resourceClass, string $property, array $options =
         $propertyMetadata = $this->decorated->create($resourceClass, $property, $options);
 
         if (!isset($cacheItem)) {
-            return $this->memoryCache[$localKey] = $propertyMetadata;
+            return $this->localCache[$localCacheKey] = $propertyMetadata;
         }
 
         $cacheItem->set($propertyMetadata);
         $this->cacheItemPool->save($cacheItem);
 
-        return $this->memoryCache[$localKey] = $propertyMetadata;
+        return $this->localCache[$localCacheKey] = $propertyMetadata;
     }
 }
diff --git a/src/Metadata/Property/Factory/CachedPropertyNameCollectionFactory.php b/src/Metadata/Property/Factory/CachedPropertyNameCollectionFactory.php
index e48d719d62d..84a842c4b36 100644
--- a/src/Metadata/Property/Factory/CachedPropertyNameCollectionFactory.php
+++ b/src/Metadata/Property/Factory/CachedPropertyNameCollectionFactory.php
@@ -28,7 +28,7 @@ final class CachedPropertyNameCollectionFactory implements PropertyNameCollectio
 
     private $cacheItemPool;
     private $decorated;
-    private $memoryCache = [];
+    private $localCache = [];
 
     public function __construct(CacheItemPoolInterface $cacheItemPool, PropertyNameCollectionFactoryInterface $decorated)
     {
@@ -41,18 +41,18 @@ public function __construct(CacheItemPoolInterface $cacheItemPool, PropertyNameC
      */
     public function create(string $resourceClass, array $options = []): PropertyNameCollection
     {
-        $localKey = serialize([$resourceClass, $options]);
-        if (isset($this->memoryCache[$localKey])) {
-            return $this->memoryCache[$localKey];
+        $localCacheKey = serialize([$resourceClass, $options]);
+        if (isset($this->localCache[$localCacheKey])) {
+            return $this->localCache[$localCacheKey];
         }
 
-        $cacheKey = self::CACHE_KEY_PREFIX.md5($localKey);
+        $cacheKey = self::CACHE_KEY_PREFIX.md5($localCacheKey);
 
         try {
             $cacheItem = $this->cacheItemPool->getItem($cacheKey);
 
             if ($cacheItem->isHit()) {
-                return $this->memoryCache[$localKey] = $cacheItem->get();
+                return $this->localCache[$localCacheKey] = $cacheItem->get();
             }
         } catch (CacheException $e) {
             // do nothing
@@ -61,12 +61,12 @@ public function create(string $resourceClass, array $options = []): PropertyName
         $propertyNameCollection = $this->decorated->create($resourceClass, $options);
 
         if (!isset($cacheItem)) {
-            return $this->memoryCache[$localKey] = $propertyNameCollection;
+            return $this->localCache[$localCacheKey] = $propertyNameCollection;
         }
 
         $cacheItem->set($propertyNameCollection);
         $this->cacheItemPool->save($cacheItem);
 
-        return $this->memoryCache[$localKey] = $propertyNameCollection;
+        return $this->localCache[$localCacheKey] = $propertyNameCollection;
     }
 }
diff --git a/src/Metadata/Resource/Factory/CachedResourceMetadataFactory.php b/src/Metadata/Resource/Factory/CachedResourceMetadataFactory.php
index da533c558fe..960cc5503de 100644
--- a/src/Metadata/Resource/Factory/CachedResourceMetadataFactory.php
+++ b/src/Metadata/Resource/Factory/CachedResourceMetadataFactory.php
@@ -28,7 +28,7 @@ final class CachedResourceMetadataFactory implements ResourceMetadataFactoryInte
 
     private $cacheItemPool;
     private $decorated;
-    private $memoryCache = [];
+    private $localCache = [];
 
     public function __construct(CacheItemPoolInterface $cacheItemPool, ResourceMetadataFactoryInterface $decorated)
     {
@@ -41,8 +41,8 @@ public function __construct(CacheItemPoolInterface $cacheItemPool, ResourceMetad
      */
     public function create(string $resourceClass): ResourceMetadata
     {
-        if (isset($this->memoryCache[$resourceClass])) {
-            return $this->memoryCache[$resourceClass];
+        if (isset($this->localCache[$resourceClass])) {
+            return $this->localCache[$resourceClass];
         }
 
         $cacheKey = self::CACHE_KEY_PREFIX.md5($resourceClass);
@@ -51,7 +51,7 @@ public function create(string $resourceClass): ResourceMetadata
             $cacheItem = $this->cacheItemPool->getItem($cacheKey);
 
             if ($cacheItem->isHit()) {
-                return $this->memoryCache[$resourceClass] = $cacheItem->get();
+                return $this->localCache[$resourceClass] = $cacheItem->get();
             }
         } catch (CacheException $e) {
             // do nothing
@@ -60,12 +60,12 @@ public function create(string $resourceClass): ResourceMetadata
         $resourceMetadata = $this->decorated->create($resourceClass);
 
         if (!isset($cacheItem)) {
-            return $this->memoryCache[$resourceClass] = $resourceMetadata;
+            return $this->localCache[$resourceClass] = $resourceMetadata;
         }
 
         $cacheItem->set($resourceMetadata);
         $this->cacheItemPool->save($cacheItem);
 
-        return $this->memoryCache[$resourceClass] = $resourceMetadata;
+        return $this->localCache[$resourceClass] = $resourceMetadata;
     }
 }
diff --git a/src/Metadata/Resource/Factory/CachedResourceNameCollectionFactory.php b/src/Metadata/Resource/Factory/CachedResourceNameCollectionFactory.php
index 0052b8f5896..3f48fff4877 100644
--- a/src/Metadata/Resource/Factory/CachedResourceNameCollectionFactory.php
+++ b/src/Metadata/Resource/Factory/CachedResourceNameCollectionFactory.php
@@ -28,7 +28,7 @@ final class CachedResourceNameCollectionFactory implements ResourceNameCollectio
 
     private $cacheItemPool;
     private $decorated;
-    private $memoryCache = [];
+    private $localCache = [];
 
     public function __construct(CacheItemPoolInterface $cacheItemPool, ResourceNameCollectionFactoryInterface $decorated)
     {
@@ -41,15 +41,15 @@ public function __construct(CacheItemPoolInterface $cacheItemPool, ResourceNameC
      */
     public function create(): ResourceNameCollection
     {
-        if (isset($this->memoryCache[self::CACHE_KEY])) {
-            return $this->memoryCache[self::CACHE_KEY];
+        if (isset($this->localCache[self::CACHE_KEY])) {
+            return $this->localCache[self::CACHE_KEY];
         }
 
         try {
             $cacheItem = $this->cacheItemPool->getItem(self::CACHE_KEY);
 
             if ($cacheItem->isHit()) {
-                return $this->memoryCache[self::CACHE_KEY] = $cacheItem->get();
+                return $this->localCache[self::CACHE_KEY] = $cacheItem->get();
             }
         } catch (CacheException $e) {
             // do nothing
@@ -58,12 +58,12 @@ public function create(): ResourceNameCollection
         $resourceNameCollection = $this->decorated->create();
 
         if (!isset($cacheItem)) {
-            return $this->memoryCache[self::CACHE_KEY] = $resourceNameCollection;
+            return $this->localCache[self::CACHE_KEY] = $resourceNameCollection;
         }
 
         $cacheItem->set($resourceNameCollection);
         $this->cacheItemPool->save($cacheItem);
 
-        return $this->memoryCache[self::CACHE_KEY] = $resourceNameCollection;
+        return $this->localCache[self::CACHE_KEY] = $resourceNameCollection;
     }
 }