Merge pull request #20792 from owncloud/autoloader-absolute-paths

Dont bother with stream_resolve_include_path if the path is already absolute

lib/autoloader.php

@@ -170,7 +170,11 @@ class Autoloader {
 			// No cache or cache miss
 			$pathsToRequire = array();
 			foreach ($this->findClass($class) as $path) {
-				$fullPath = stream_resolve_include_path($path);
+				if ($path[0] === '/') {
+					$fullPath = file_exists($path) ? $path : false;
+				} else {
+					$fullPath = stream_resolve_include_path($path);
+				}
 				if ($fullPath && $this->isValidPath($fullPath)) {
 					$pathsToRequire[] = $fullPath;
 				}