Upload Files in Selenium for different OS

CommonUtils.java

package utility;

import java.awt.*;
import java.awt.datatransfer.StringSelection;
import java.awt.event.KeyEvent;
import org.apache.commons.lang3.SystemUtils;
import org.openqa.selenium.WebElement;

public class CommonUtils {

  public static void uploadFile(WebElement uploadBtn, String filelocation) {
    try {
      if (SystemUtils.IS_OS_LINUX) {
        uploadBtn.sendKeys(filelocation);
      } else if (SystemUtils.IS_OS_MAC) {
        setClipboardData(filelocation);
        Robot robot = new Robot();
        robot.delay(4000);

        System.out.println("Open Goto window");
        //Open Goto window
        robot.keyPress(KeyEvent.VK_META);
        robot.keyPress(KeyEvent.VK_SHIFT);
        robot.keyPress(KeyEvent.VK_G);
        robot.keyRelease(KeyEvent.VK_META);
        robot.keyRelease(KeyEvent.VK_SHIFT);
        robot.keyRelease(KeyEvent.VK_G);

        System.out.println("Paste the clipboard value");

        //Paste the clipboard value
        robot.keyPress(KeyEvent.VK_META);
        robot.keyPress(KeyEvent.VK_V);
        robot.keyRelease(KeyEvent.VK_META);
        robot.keyRelease(KeyEvent.VK_V);

        //Press Enter key to close the Goto window and Upload window
        System.out.println("Press Enter key to close the Goto window and Upload window");

        robot.keyPress(KeyEvent.VK_ENTER);
        robot.keyRelease(KeyEvent.VK_ENTER);
        robot.delay(1000);
        robot.keyPress(KeyEvent.VK_ENTER);
        robot.keyRelease(KeyEvent.VK_ENTER);
      } else {
        setClipboardData(filelocation);
        Robot robot = new Robot();
        robot.keyPress(KeyEvent.VK_CONTROL);
        robot.keyPress(KeyEvent.VK_V);
        robot.keyRelease(KeyEvent.VK_V);
        robot.keyRelease(KeyEvent.VK_CONTROL);
        robot.keyPress(KeyEvent.VK_ENTER);
        robot.keyRelease(KeyEvent.VK_ENTER);
      }
    } catch (Exception exp) {
      exp.printStackTrace();
    }
  }

  public static void setClipboardData(String string) {
    System.out.println(string);
    StringSelection stringSelection = new StringSelection(string);
    Toolkit.getDefaultToolkit().getSystemClipboard().setContents(stringSelection, null);
  }
}