Trait - Private methods cannot be final

Author: byjg

.gitignore

@@ -7,4 +7,4 @@ vendor
 .scannerwork
 phpunit.coverage.xml
 phpunit.report.xml
-
+.phpunit.result.cache

src/Singleton.php

@@ -6,28 +6,29 @@ trait Singleton
 {
     protected function __construct()
     {
+        // Constructor cannot be public
     }
 
     /**
      * @throws SingletonException
      */
-    final public function __clone()
+    public function __clone()
     {
         throw new SingletonException('You can not clone a singleton.');
     }
 
     /**
      * @throws SingletonException
      */
-    final public function __sleep()
+    public function __sleep()
     {
         throw new SingletonException('You can not serialize a singleton.');
     }
 
     /**
      * @throws SingletonException
      */
-    final public function __wakeup()
+    public function __wakeup()
     {
         throw new SingletonException('You can not deserialize a singleton.');
     }