Unable to upload profile pic in fb via autoit

i placed appropriate exe file in project location.When i execute the code, execution terminates, with no message or exception.
Following the code:
import java.io.IOException;
import java.util.concurrent.TimeUnit;

import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.firefox.FirefoxDriver;
import org.openqa.selenium.interactions.Actions;
import org.openqa.selenium.Keys;

public class Facebook_c {

public static void main(String[] args) throws IOException {
// https://www.facebook.com/

WebDriver w=new FirefoxDriver();
w.get("https://www.facebook.com/");
w.findElement(By.xpath("//*[@id='email']")).sendKeys("@gmail.com");//======================enter ur email id
w.findElement(By.xpath("//*[@id='pass']")).sendKeys("");////==========================enter ur pwd
w.findElement(By.xpath("//*[@id='u_0_v']")).click();

w.manage().window().maximize();
w.manage().timeouts().implicitlyWait(50, TimeUnit.SECONDS);

w.findElement(By.xpath("//div[@class='linkWrap noCount']")).click();
w.manage().timeouts().implicitlyWait(50, TimeUnit.SECONDS);
WebElement wi=w.findElement(By.xpath("//div[@class='fbTimelineProfilePicSelector _23fv']"));

Actions A=new Actions(w);
A.moveToElement(wi).build().perform();
wi.click();
w.findElement(By.xpath("//*[@type='file' and @accept='image/*' and @title='Choose a file to upload']")).click();
w.manage().timeouts().implicitlyWait(50, TimeUnit.SECONDS);





Process process =new ProcessBuilder(System.getProperty("user.dir")+"\\src\\idli.exe","open").start();


}

}
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This is put in SciTE:
$WinGetHandle=WinGetHandle ( "File Upload" )
WinActivate($WinGetHandle)
ControlSetText ( "File Upload", "", "[Class:Edit:Instance:1]","C:\Users\Public\Pictures\Sample Pictures\idli.jpg" )
ControlClick ("File Upload", "", "[Class:Button:Instance:1]" )