8288332: Tier1 validate-source fails after 8279614

Backport-of: e90b579b294eb88f6b4e236d19b05063775ee8d7

Author: GoeLin

test/jdk/javax/swing/border/EtchedBorder/ScaledEtchedBorderTest.java

@@ -2,6 +2,10 @@
  * Copyright (c) 2022, 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
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
  * This code is distributed in the hope that it will be useful, but WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License