Java 第二个类正在为TestNG引发空指针异常

我使用TestNG为每个网页创建了不同的类。我的第一个类工作正常，但第二个类抛出空指针异常。同样的脚本，如果我只在一个类中组合，它就可以正常工作，没有任何问题

下面是我的基础课

package Test;
import org.testng.annotations.Test;
import Pages.FM_login;
import org.testng.annotations.BeforeTest;
import java.util.concurrent.TimeUnit;
import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;
import org.testng.annotations.AfterClass;
import org.testng.annotations.AfterTest;
public class Baseclass {
  WebDriver driver;
  FM_login  objLogin;
  @BeforeTest
  public void setup() {
      System.setProperty("webdriver.chrome.driver", "C:\\Users\\****\\Downloads\\chromedriver.exe");
        String url = "http://vatlookup.cloudfront.net";
          driver = new ChromeDriver();
          driver.manage().window().maximize();
          driver.get(url);
          driver.manage().timeouts().implicitlyWait(60, TimeUnit.SECONDS);
          String Title = driver.getTitle();
          System.out.println(Title);
          System.out.println("Application Launch successful");
          // Accept the cookie policy
          driver.findElement(By.xpath("//a[@class='cc-btn cc-allow']")).click();
  }
  @Test
  public void Login() {
      objLogin = new FM_login(driver);
      objLogin.GoToLoginScreen();
      objLogin.loginToFleetMatch("abc", "123");
      System.out.println("Login Successful");
  }
 @AfterTest(enabled=false)
  public void teardown() {
      driver.close();
}

这是另一门课

package Test;

import org.openqa.selenium.WebDriver;
import org.testng.annotations.Test;

import Pages.FM_Profile;

public class Profile {
    WebDriver driver;
    FM_Profile objProfile;
    
    
     @Test
      public void Skip_Tutorial() {
          objProfile = new FM_Profile(driver);
          driver.getCurrentUrl();
          objProfile.SkipTutorial();
      }
      
      @Test(enabled=false)
      public void edit_profile() {
          objProfile.edit_profile();
      }
}

下面是第二个类的页面对象

package Pages;

import org.openqa.selenium.By;
import org.openqa.selenium.JavascriptExecutor;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;

public class FM_Profile {
    
    WebDriver driver;
    By company_name = By.xpath("//p[@id='company-name']");
    By plan_details = By.xpath("//p[@id='current-plan']");
    By End_tour = By.xpath("//button[@class='driver-close-btn']");
    By edit_profile = By.xpath("//span[contains(text(),'Edit')]");
    By Description = By.xpath("//textarea[@id='mat-input-10']");
    By Upload_image = By.xpath("//div[@class='upload-btn continental-book ng-star-inserted']");
    By Save_profile = By.xpath("//button[@class='save-btn continental-book mat-stroked-button mat-button-base mat-primary editMode cdk-focused cdk-mouse-focused']");
    
    
    public FM_Profile(WebDriver driver) {
        this.driver = driver;
    }
    
    public void SkipTutorial() {
        driver.findElement(End_tour).click();
    }

执行后，它将显示第二个类的java.lang.NullPointerException

package Pages;

import org.openqa.selenium.By;
import org.openqa.selenium.JavascriptExecutor;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;

public class FM_Profile {
    
    WebDriver driver;
    By company_name = By.xpath("//p[@id='company-name']");
    By plan_details = By.xpath("//p[@id='current-plan']");
    By End_tour = By.xpath("//button[@class='driver-close-btn']");
    By edit_profile = By.xpath("//span[contains(text(),'Edit')]");
    By Description = By.xpath("//textarea[@id='mat-input-10']");
    By Upload_image = By.xpath("//div[@class='upload-btn continental-book ng-star-inserted']");
    By Save_profile = By.xpath("//button[@class='save-btn continental-book mat-stroked-button mat-button-base mat-primary editMode cdk-focused cdk-mouse-focused']");
    
    
    public FM_Profile(WebDriver driver) {
        this.driver = driver;
    }
    
    public void SkipTutorial() {
        driver.findElement(End_tour).click();
    }

错误

---

在概要文件类中，驱动程序对象未初始化。您正在初始化的驱动程序对象位于该类的基类和实例中。您还需要初始化Profile类中的驱动程序对象

WebDriver从未初始化过

---

WebDriver=新的WebDriver（）

不相关但很重要：您应该遵循Java命名约定：变量名和方法名应该用camelCase编写，类名应该用PascalCase编写；org.testng.TestNGException:无法实例化类Test.Profile