Disabled Scrollbar looks the same as ordinary Scrollbar under XAWT. As a result some components that includes Scrollbars in it suffer from that issue. In particular, ScrollPane.
List is also affected but mostly due to a typo in its peer. See 6362024 suggested fix.

Run following test and find that Scrollbars looks the same as well as ScrollPanes.

import java.awt.*;

public class ConfusionInTextArea {
        public Frame frame=null;
        public TextArea ta1=null,ta2=null,ta3=null;
        public List lst1=null, lst2=null;
        public Button b=null;
    public Scrollbar sb1, sb2;
    public ScrollPane sp1, sp2;

        ConfusionInTextArea(){
            
                frame = new Frame("Confusion in TextArea");
                Panel taPanel = new Panel();
                
                sb1 = new Scrollbar(Scrollbar.HORIZONTAL, 0, 60, 0, 300);
                sb1.setEnabled(false);
                sb2 = new Scrollbar(Scrollbar.HORIZONTAL, 0, 60, 0, 300);

                sp1 = new ScrollPane(ScrollPane.SCROLLBARS_ALWAYS);
                sp1.setEnabled(false);
                sp2 = new ScrollPane(ScrollPane.SCROLLBARS_ALWAYS);
                sp1.add(new Button("DISABLED"){
                        public Dimension getPreferredSize(){
                            return new Dimension(500, 500);
                        }});
                sp2.add(new Button("ENABLED"){
                        public Dimension getPreferredSize(){
                            return new Dimension(500, 500);
                        }});

                taPanel.add(sb1);
                taPanel.add(sb2);

                taPanel.add(sp1);
                taPanel.add(sp2);
    //taPanel.setLayout(new java.awt.BorderLayout());
                taPanel.add(ta1 = new TextArea(10,10));
                //taPanel.add(ta2 = new TextArea(10,10));
                taPanel.add(ta3 = new TextArea(10,10));
                for(int i=0 ;i<100;i++)
                ta1.append("AWT is Cool. Disabled TextArea \n");
                //for(int i=0 ;i<100;i++)
                //ta2.append("AWT is Cool. UnEditabled TextArea \n");
                for(int i=0 ;i<100;i++)
                ta3.append("AWT is Cool. Editabled TextArea \n");
                ta1.setEnabled(false);
                //ta2.setEditable(false);
                frame.add("North" , taPanel);

                System.out.println("ta1 font = "+ta1.getFont());
                //System.out.println("ta2 font = "+ta2.getFont());


                Panel lstPanel = new Panel();
                //lstPanel.setLayout(new java.awt.BorderLayout());
                lst1 = new List();
                lst1.add("Praveen Mohan");
                lst1.add("Lawrence Prem Kumar");
                lst1.add("Girish Ramachandran");
                lst1.add("Girish.Girish");
                lst1.add("Raju");
                lst1.add("Cheran");
                lst1.add("Vinay");
                lst1.add("Srini");
                lst1.add("Blessan");
                lst1.add("Asha");
                lst1.add("Tao");
                lst1.add("Yin");

                lst1.setEnabled(false);

                lst2 = new List();
                lst2.add("Praveen Mohan");
                lst2.add("Lawrence Prem Kumar");
                lst2.add("Girish Ramachandran");
                lst2.add("Girish.Girish");
                lst2.add("Raju");
                lst2.add("Cheran");
                lst2.add("Vinay");
                lst2.add("Srini");
                lst2.add("Blessan");
                lst2.add("Asha");
                lst2.add("Tao");
                lst2.add("Yin");

                lstPanel.add("North",lst1);
                lstPanel.add("South",lst2);

                frame.add("Center",b = new Button("getFont"));
                b.addActionListener(new java.awt.event.ActionListener(){
                        public void actionPerformed(java.awt.event.ActionEvent ae){
                                System.out.println("ta1 font = "+ta1.getFont());
                                System.out.println("ta2 font = "+ta3.getFont());

                        }
                });

                frame.add("South",lstPanel);
                frame.pack();
                frame.setVisible(true);
        }

        public static void main(String []args){
                new ConfusionInTextArea();
        }
}