Fix test bug related to legacy JUnit AssertionFailedError

AssertionFailedError was thrown by JUnit 3.8. Since RedirectViewTests
has been upgraded to JUnit 4, now standard java.lang.AssertionErrors are
thrown. Thus, attempting to catch an AssertionFailedError is futile.

Of course, since these tests have not been failing, it is likely a moot
point, but changing the try-catch blocks to catch a possible
AssertionError can't be a bad thing.