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31  import sun.awt.OSInfo;
32  import sun.awt.shell.ShellFolder;
33  
34  import javax.swing.*;
35  import java.awt.*;
36  import java.lang.reflect.Method;
37  
38  public class bug4847375 {
39      private final String newFolderToolTipText;
40  
41      private final String lookAndFeel;
42  
43      public static void main(String[] args) throws Exception {
44          if (OSInfo.getOSType() != OSInfo.OSType.WINDOWS) {
45              System.out.println("The test is suitable only for Windows OS. Skipped.");
46  
47              return;
48          }
49  
50          SwingUtilities.invokeAndWait(new Runnable() {
51              public void run() {
52                  new bug4847375("com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
53  
54                  new bug4847375("javax.swing.plaf.metal.MetalLookAndFeel");
55              }
56          });
57      }
58  
59      private static Object[][] DIRECTORIES = new Object[][]{
60              {"getDesktop", Boolean.TRUE},
61              {"getDrives", Boolean.FALSE}, 
62              {"getRecent", Boolean.TRUE},
63              {"getNetwork", Boolean.FALSE},
64              {"getPersonal", Boolean.TRUE},
65      };
66  
67      private bug4847375(String lookAndFeel) {
68          this.lookAndFeel = lookAndFeel;
69  
70          try {
71              UIManager.setLookAndFeel(lookAndFeel);
72          } catch (Exception e) {
73              fail("Cannot set LookAndFeel", e);
74          }
75  
76          JFileChooser fileChooser = new JFileChooser();
77  
78          
79          newFolderToolTipText = UIManager.getString("FileChooser.newFolderToolTipText", fileChooser.getLocale());
80  
81          if (newFolderToolTipText == null || newFolderToolTipText.length() == 0) {
82              fail("Cannot find NewFolderButton in FileChooser (tooltip doesn't exist)");
83  
84              return;
85          }
86  
87          JButton newFolderButton = findNewFolderButton(fileChooser);
88  
89          if (newFolderButton == null) {
90              fail("Cannot find NewFolderButton in FileChooser");
91  
92              return;
93          }
94  
95          for (Object[] objects : DIRECTORIES) {
96              String getterName = (String) objects[0];
97              Boolean enabledNewFolder = (Boolean) objects[1];
98  
99              fileChooser.setCurrentDirectory(getWin32Folder(getterName));
100 
101             if (newFolderButton.isEnabled() != enabledNewFolder) {
102                 fail("Enabled state of NewFolderButton should be " + enabledNewFolder +
103                         " for Win32ShellFolderManager2." + getterName + "()");
104             }
105         }
106     }
107 
108     private JButton findNewFolderButton(Container container) {
109         JButton result = null;
110 
111         for (int i = 0; i < container.getComponentCount(); i++) {
112             Component c = container.getComponent(i);
113 
114             if (c instanceof JButton && newFolderToolTipText.equals(((JButton) c).getToolTipText())) {
115                 if (result != null) {
116                     fail("Two or more NewFolderButton found in FileChooser");
117                 }
118 
119                 result = (JButton) c;
120             }
121 
122             if (c instanceof Container) {
123                 JButton button = findNewFolderButton((Container) c);
124 
125                 if (result == null) {
126                     result = button;
127                 } else {
128                     if (button != null) {
129                         fail("Two or more NewFolderButton found in FileChooser");
130                     }
131                 }
132             }
133         }
134 
135         return result;
136     }
137 
138     private ShellFolder getWin32Folder(String getterName) {
139         try {
140             Class win32ShellFolderManager2 = Class.forName("sun.awt.shell.Win32ShellFolderManager2");
141 
142             Method method = win32ShellFolderManager2.getDeclaredMethod(getterName);
143             method.setAccessible(true);
144 
145             return (ShellFolder) method.invoke(null);
146         } catch (Exception e) {
147             fail("Cannot call '" + getterName + "' in the Win32ShellFolderManager2 class", e);
148 
149             return null;
150         }
151     }
152 
153     private void fail(String s) {
154         throw new RuntimeException("Test failed: " + s);
155     }
156 
157     private void fail(String s, Throwable e) {
158         throw new RuntimeException("Test failed for LookAndFeel " + lookAndFeel + ": " + s, e);
159     }
160 }