What class is used to determine data binding errors, such as those during POST operations?

Which of the following object hold the information of principal currently using the application?

Which one of the following statements is NOT true about the following configuration in security.xml <http ...> … <form-login login-page="/login/form" login-processing-url="/login" username-parameter="username" password-parameter="password" authentication-failure-url="/login/form?error"/> </http>

Which of the following correctly describes TestContextManager of Spring TestContext Framework?

Which is NOT a valid way of injecting a Collection in Spring?

Which of the following Design Patterns is the common solution for the duplicated form submission problem in Spring MVC?

What class is used to determine data binding errors, such as those during POST operations?