src/java.base/share/classes/java/net/MulticastSocket.java

*** 91,115 ****
      private boolean interfaceSet;
  
      /**
       * Create a multicast socket.
       *
!      * <p>If there is a security manager,
!      * its {@code checkListen} method is first called
!      * with 0 as its argument to ensure the operation is allowed.
!      * This could result in a SecurityException.
       * <p>
       * When the socket is created the
!      * {@link DatagramSocket#setReuseAddress(boolean)} method is
!      * called to enable the SO_REUSEADDR socket option. When
!      * {@link StandardSocketOptions#SO_REUSEPORT SO_REUSEPORT} is
!      * supported then
!      * {@link DatagramSocketImpl#setOption(SocketOption, Object)}
!      * is called to enable the socket option.
       *
!      * @exception IOException if an I/O exception occurs
!      * while creating the MulticastSocket
       * @exception  SecurityException  if a security manager exists and its
       *             {@code checkListen} method doesn't allow the operation.
       * @see SecurityManager#checkListen
       * @see java.net.DatagramSocket#setReuseAddress(boolean)
       * @see java.net.DatagramSocketImpl#setOption(SocketOption, Object)
--- 91,111 ----
      private boolean interfaceSet;
  
      /**
       * Create a multicast socket.
       *
!      * <p>
!      * If there is a security manager, its {@code checkListen} method is first
!      * called with 0 as its argument to ensure the operation is allowed. This
!      * could result in a SecurityException.
       * <p>
       * When the socket is created the
!      * {@link DatagramSocket#setReuseAddress(boolean)} method is called to
!      * enable the SO_REUSEADDR socket option.
       *
!      * @exception IOException if an I/O exception occurs while creating the
!      * MulticastSocket
       * @exception SecurityException if a security manager exists and its
       * {@code checkListen} method doesn't allow the operation.
       * @see SecurityManager#checkListen
       * @see java.net.DatagramSocket#setReuseAddress(boolean)
       * @see java.net.DatagramSocketImpl#setOption(SocketOption, Object)
*** 172,195 ****
          super((SocketAddress) null);
  
          // Enable SO_REUSEADDR before binding
          setReuseAddress(true);
  
-         // Enable SO_REUSEPORT if supported before binding
-         if (supportedOptions().contains(StandardSocketOptions.SO_REUSEPORT)) {
-             this.setOption(StandardSocketOptions.SO_REUSEPORT, true);
-         }
- 
          if (bindaddr != null) {
              try {
                  bind(bindaddr);
              } finally {
!                 if (!isBound())
                      close();
              }
          }
      }
  
      /**
       * The lock on the socket's TTL. This is for set/getTTL and
       * send(packet,ttl).
       */
--- 168,187 ----
          super((SocketAddress) null);
  
          // Enable SO_REUSEADDR before binding
          setReuseAddress(true);
  
          if (bindaddr != null) {
              try {
                  bind(bindaddr);
              } finally {
!                 if (!isBound()) {
                      close();
                  }
              }
          }
+     }
  
      /**
       * The lock on the socket's TTL. This is for set/getTTL and
       * send(packet,ttl).
       */