Fix up reflection access

Author: dereuromark

src/Annotator/AbstractAnnotator.php

@@ -823,8 +823,10 @@ protected function getModelAnnotations(array $usedModels, string $content): arra
 	 */
 	protected function invokeProperty(&$object, string $name) {
 		$reflection = new ReflectionClass(get_class($object));
+		if (!$reflection->hasProperty($name)) {
+			return null;
+		}
 		$property = $reflection->getProperty($name);
-		$property->setAccessible(true);
 
 		return $property->getValue($object);
 	}

src/Generator/Task/TableFinderTask.php

@@ -152,8 +152,10 @@ protected function getCustomFinders(): array {
 	 */
 	protected function invokeProperty(&$object, string $name) {
 		$reflection = new ReflectionClass(get_class($object));
+		if (!$reflection->hasProperty($name)) {
+			return null;
+		}
 		$property = $reflection->getProperty($name);
-		$property->setAccessible(true);
 
 		return $property->getValue($object);
 	}