无法调用，因为“这个”。是无效的

Question

我正在尝试创建一个简单的自动化测试来打开 Chrome 中的某个链接，但我遇到了这个问题。我之前读过，我应该用 @Component 注释我的类，我这样做了，但仍然无法访问我的链接。 Webdriver 打开正常，但在我收到此问题后不久：

Message: java.lang.NullPointerException: Cannot invoke 

"com.automation_practice.pom.pages.homepage.HomePage.open()" because "this.homePage" is null
Stack Trace:
com.automation_practice.gauge.steps.TestSteps.openMyAccountPage(TestSteps.java:40)
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
java.base/java.lang.reflect.Method.invoke(Method.java:568)
com.thoughtworks.gauge.execution.MethodExecutor.execute(MethodExecutor.java:28)
com.thoughtworks.gauge.execution.StepExecutionStage.executeStepMethod(StepExecutionStage.java:66)
com.thoughtworks.gauge.execution.StepExecutionStage.executeStep(StepExecutionStage.java:59)
com.thoughtworks.gauge.execution.StepExecutionStage.execute(StepExecutionStage.java:41)
com.thoughtworks.gauge.execution.AbstractExecutionStage.executeNext(AbstractExecutionStage.java:14)
com.thoughtworks.gauge.execution.HookExecutionStage.execute(HookExecutionStage.java:33)
com.thoughtworks.gauge.execution.ExecutionPipeline.start(ExecutionPipeline.java:19)
com.thoughtworks.gauge.processor.ExecuteStepProcessor.process(ExecuteStepProcessor.java:41)
com.thoughtworks.gauge.RunnerServiceHandler.lambda$executeStep$7(RunnerServiceHandler.java:166)
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
java.base/java.lang.Thread.run(Thread.java:833)

测试只有一步：

@Component
public class TestSteps {

private static final Configuration CONFIG = ConfigCache.getOrCreate(Configuration.class, System.getenv());

@Autowired
private HomePage homePage;

@Step("Open home page")
public void openHomePage() {
    DriverManager.getInstance().deleteDriverCookies();
    homePage = homePage.open();
    assertThatPageIsOpened(homePage);
}
}

主页：

@Getter
@Component

public class HomePage extends BasePage implements Page {

private static final Configuration CONFIG = ConfigCache.getOrCreate(Configuration.class, System.getenv());

@FindBy(xpath = "//div[@id='layout']")
private HtmlElement homeLayout;

@Override
public boolean isAt() {
    return awaitForElements(getTopHeaderBar(),
            getLogoImage(),
            getHomeLayout(),
            getFooter()
    );
}

@Override
public String getUrl() {
    return "/";
}

public HomePage() {
    HtmlElementLoader.populatePageObject(this, DriverManager.getInstance().getDriver());
}

public HomePage open() {
    DriverManager.getInstance().navigateTo(CONFIG.getApplicationBaseUrl());
    return new HomePage();
}
}

任何帮助将不胜感激 谢谢 ：）