src/java.base/share/classes/sun/nio/ch/MembershipKeyImpl.java

*** 1,7 ****
  /*
!  * Copyright (c) 2008, 2009, 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.  Oracle designates this
--- 1,7 ----
  /*
!  * Copyright (c) 2008, 2018, 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.  Oracle designates this
*** 44,54 ****
      private final InetAddress source;
  
      private volatile boolean invalid;
  
      // lock used when creating or accessing blockedSet
!     private Object stateLock = new Object();
  
      // set of source addresses that are blocked
      private HashSet<InetAddress> blockedSet;
  
      private MembershipKeyImpl(MulticastChannel ch,
--- 44,54 ----
      private final InetAddress source;
  
      private volatile boolean invalid;
  
      // lock used when creating or accessing blockedSet
!     private final Object stateLock = new Object();
  
      // set of source addresses that are blocked
      private HashSet<InetAddress> blockedSet;
  
      private MembershipKeyImpl(MulticastChannel ch,