fixes

Author: soyuka

src/Hydra/Serializer/CollectionFiltersNormalizer.php

@@ -144,12 +144,12 @@ private function convertMappingToArray(array $mapping): array
         foreach ($mapping as $m) {
             $converted = [
                 '@type' => 'IriTemplateMapping',
-                'variable' => $m->getVariable(),
-                'property' => $m->getProperty(),
+                'variable' => $m->variable,
+                'property' => $m->property,
             ];
 
-            if (null !== $m->isRequired()) {
-                $converted['required'] = $m->isRequired();
+            if (null !== ($r = $m->required)) {
+                $converted['required'] = $r;
             }
 
             $convertedMapping[] = $converted;

src/Hydra/State/Util/SearchHelperTrait.php

@@ -66,11 +66,16 @@ private function getSearchMappingAndKeys(?Operation $operation = null, ?string $
                 $filterDescription = $filter->getDescription($resourceClass);
 
                 foreach ($filterDescription as $variable => $description) {
+                    // // This is a practice induced by PHP and is not necessary when implementing URI template
                     if (str_ends_with((string) $variable, '[]')) {
                         continue;
                     }
 
-                    if (($prop = $parameter->getProperty()) && ($description['property'] ?? null) !== $prop) {
+                    if (!($descriptionProperty = $description['property'] ?? null)) {
+                        continue;
+                    }
+
+                    if (($prop = $parameter->getProperty()) && $descriptionProperty !== $prop) {
                         continue;
                     }