8312414: Make java.util.ServiceLoader.LANG_ACCESS final

Reviewed-by: alanb, jpai

Author: Andrey Turbanov

src/java.base/share/classes/java/util/ServiceLoader.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2005, 2022, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2005, 2023, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -422,10 +422,7 @@ public final class ServiceLoader<S>
     // Incremented when reload is called
     private int reloadCount;
 
-    private static JavaLangAccess LANG_ACCESS;
-    static {
-        LANG_ACCESS = SharedSecrets.getJavaLangAccess();
-    }
+    private static final JavaLangAccess LANG_ACCESS = SharedSecrets.getJavaLangAccess();
 
     /**
      * Represents a service provider located by {@code ServiceLoader}.