src/java.desktop/macosx/classes/com/apple/laf/AquaMenuBarBorder.java

*** 27,45 ****
  
  import java.awt.Color;
  import java.awt.Component;
  import java.awt.Graphics;
  import java.awt.Insets;
  
  import javax.swing.border.Border;
  
  import sun.swing.SwingUtilities2;
  
  /**
   * The class represents the border of a {@code JMenuBar}.
   */
! public class AquaMenuBarBorder implements Border {
  
      @Override
      public void paintBorder(final Component c, final Graphics g, final int x,
                              final int y, final int width, final int height) {
          g.setColor(Color.gray);
--- 27,47 ----
  
  import java.awt.Color;
  import java.awt.Component;
  import java.awt.Graphics;
  import java.awt.Insets;
+ import java.io.Serializable;
  
  import javax.swing.border.Border;
  
  import sun.swing.SwingUtilities2;
  
  /**
   * The class represents the border of a {@code JMenuBar}.
   */
! public class AquaMenuBarBorder implements Border, Serializable {
!     private static final long serialVersionUID = 7705272283866425302L;
  
      @Override
      public void paintBorder(final Component c, final Graphics g, final int x,
                              final int y, final int width, final int height) {
          g.setColor(Color.gray);