package testproject;
import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.firefox.
I have tested the below code,it clicks on GMAIL link on google page,if your question is solved then select as answer
WebDriver driver= new FirefoxDriver();
driver.get("https://www.google.co.in/");
WebElement wb1= driver.findElement(By.xpath(".//*[@id='gb']/div[1]/div[1]/div[1]/div[2]/a"));
wb1.click();