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POSpring MVC strange behavior
 

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    <p>I have a method that handles request with a URI of "/home". This request is generated upon successful log-in procedure. Here is a little code to support my situation:</p> <pre><code>&lt;security:form-login login-processing-url="/static/j_spring_security_check" login-page="/login" authentication-failure-url="/login?login_error=t" default-target-url="/home"/&gt; </code></pre> <p>The method body demonstrates what I am attempting to achieve:</p> <pre><code>String userMail = SecurityContextHolder.getContext(). getAuthentication().getName(); logger.info(userMail); Person p = userService.retrieveUserByEmail(userMail); session.setAttribute("person", p); return "user/home"; </code></pre> <p>This bit is important as the person p is used as data source for other requests.</p> <p>Now the problem. I don't know if it is the property of Google Chrome, but for some reason the browser remembers the request you've done before log-in and instead of going through /home request after successful log-in procedure, it generates the previous request bypassing this /home gate, resulting in null pointer exception as person p was never set up, as session wasn't populated by /home request.</p> <p>I know that for other requests I should do validation, but I don't like the idea of letting user generate any request without prior going through /home .</p> <p>Done with text description and now to explain how I get unwanted behaviour in steps:</p> <ol> <li><p>ask for request that you know exist such as: myApp/nameOfSomething/viewThisSomething - you are brought to log-in page as expected(you must be authenticated for request to be accepted)</p></li> <li><p>you enter correct credentials and instead of going to default-target-url="/home" you are automatically making previous request myApp/nameOfSomething/viewThisSomething without populating session with necessary data and resulting in nullpointer exception.</p></li> </ol> <p>What else is interesting is that logger shows the mail, so it might be that they are both executed at the same time but /home request is slower - can that happen?</p> <p>I resolve the situation in other method by checking if null and forcing to go back to /home which works as expected, but I am control freak and don't like when user is doing what he is not intended to do.</p> <p>Thank You for Your time,</p>
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