Java-Decode XML file with XMLDecoder

http://www.avajava.com/tutorials/lessons/how-do-i-read-a-javabean-from-an-xml-file-using-xmldecoder.html

Klasse Main:

private static Config InitConfiguration(String filename)
    {
        Config configTemp = new Config();
        try
        {
            FileInputStream fis = new FileInputStream(filename);
            BufferedInputStream bis = new BufferedInputStream(fis);
            XMLDecoder xmlDecoder = new XMLDecoder(bis);
            configTemp = (Config) xmlDecoder.readObject();
        }
        catch (Exception e)
        {
            System.err.println(e.getMessage());
        }
        return configTemp;
    }

Klasse Config:

public class Config implements Serializable
{
    private static final long serialVersionUID = 1L;
    private String serverName;
    private int serverPort;
    private String user;
    private String password;
   
    public String getServerName()
    {
        return serverName;
    }
    public void setServerName(String serverName)
    {
        this.serverName = serverName;
    }
    public int getServerPort()
    {
        return serverPort;
    }
    public void setServerPort(int serverPort)
    {
        this.serverPort = serverPort;
    }
    public String getUser()
    {
        return user;
    }
    public void setUser(String user)
    {
        this.user = user;
    }
    public String getPassword()
    {
        return password;
    }
    public void setPassword(String password)
    {
        this.password = password;
    }
}

Die Config.xml-Datei:
<?xml version="1.0" encoding="UTF-8" ?>
<java version="1.8.0_20" class="SSHServerRestartPackage.SSHServerRestart">
    <object class="SSHServerRestartPackage.Config">
        <void property="serverName">
            <string>202.202.202.202</string>
        </void>
        <void property="serverPort">
            <int>22</int>
        </void>
        <void property="user">
            <string>root</string>
        </void>
        <void property="password">
            <string>IhrPasswort</string>
        </void>
    </object>
</java>