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3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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13  * accompanied this code).
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23 
24 /**
25  * @test
26  * @key headful
27  * @bug 6866751
28  * @summary J2SE_Swing_Reg: the caret disappears when moving to the end of the line.
29  * @author Semyon Sadetsky
30  */
31 
32 import javax.swing.*;
33 import java.awt.*;
34 
35 public class bug6866751 {
36     private static JFrame frame;
37     private static JTextArea area;
38 
main(String[] args)39     public static void main(String[] args) throws Exception {
40         try {
41             SwingUtilities.invokeAndWait(new Runnable() {
42                 public void run() {
43                     frame = new JFrame();
44                     frame.setUndecorated(true);
45                     frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
46                     setup(frame);
47                 }
48             });
49             SwingUtilities.invokeAndWait(new Runnable() {
50                 public void run() {
51                     int width = area.getWidth();
52                     double caretX =
53                             area.getCaret().getMagicCaretPosition().getX();
54                     if (width < caretX + 1) {
55                         throw new RuntimeException(
56                                 "Width of the area (" + width +
57                                         ") is less than caret x-position " +
58                                         caretX + 1);
59                     }
60                     area.putClientProperty("caretWidth", 10);
61                     frame.pack();
62                 }
63             });
64             new Robot().waitForIdle();
65             SwingUtilities.invokeAndWait(new Runnable() {
66                 public void run() {
67                     int width = area.getWidth();
68                     double caretX =
69                             area.getCaret().getMagicCaretPosition().getX();
70                     if (width < caretX + 10) {
71                         throw new RuntimeException(
72                                 "Width of the area (" + width +
73                                         ") is less  than caret x-position " +
74                                         caretX + 10);
75                     }
76                 }
77             });
78             System.out.println("ok");
79         } finally {
80             SwingUtilities.invokeAndWait(new Runnable() {
81                 @Override
82                 public void run() {
83                     if (frame != null) { frame.dispose(); }
84                 }
85             });
86         }
87     }
88 
setup(JFrame frame)89     static void setup(JFrame frame) {
90         area = new JTextArea();
91         frame.getContentPane().add(new JScrollPane(area));
92         area.setText(
93                 "mmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm");
94         area.getCaret().setDot(area.getText().length() + 1);
95 
96         frame.setSize(300, 200);
97         frame.setVisible(true);
98 
99         area.requestFocus();
100 
101     }
102 
103 }
104