A DESCRIPTION OF THE PROBLEM :
When you have a shortcut file (*.lnk) on the desktop that points to a location on a network server to which you must authenticate, the JFileChooser is very slow to open and change folders. This occurs in the same case as JDK-8213583 when you have a security manager set. Without a security manager set, changing directories is fast except when changing to the desktop.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
1. Create a shortcut file on your desktop to a network server to which you need to authenticate. You'll know you have this setup correctly if you double click the shortcut and see a "Windows Security" dialog asking you to "Enter your credentials to connect to: <SERVERNAME>"
2. Run the test case file with Java 11 or later

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
The file chooser opens quickly and changing directories is fast.
ACTUAL -
The file chooser takes a while to open and changing directories is very slow.

---------- BEGIN SOURCE ----------
import java.io.*;
import javax.swing.JFileChooser;

/////////////////////////////////////
//
// NOTE:
// There must be a shortcut on the Windows desktop referencing a network location
// that requires authentication before running this program.
//
public class SlowLinkBug {
    public static void main(String[] args) throws Exception {

        // Creates a temporary security policy
        final File tempPolicyFile = File.createTempFile("broken-links-bug-", ".policy");
        tempPolicyFile.deleteOnExit();
        try (final PrintStream policyStream = new PrintStream(new FileOutputStream(tempPolicyFile))) {
            policyStream.println("grant { permission java.security.AllPermission; };");
        }
        System.setProperty("java.security.policy", tempPolicyFile.getAbsolutePath());

        // Trigger the problem
        System.setSecurityManager(new SecurityManager());
        JFileChooser chooser = new JFileChooser();

        chooser.showDialog(null, "Open"); // not really needed
    }
}

---------- END SOURCE ----------

CUSTOMER SUBMITTED WORKAROUND :
Remove the link from the desktop or don't set a security manager.

FREQUENCY : always