PHPUnit error with PHPunit_Selenium

gistfile1.php

<?php


class ReproduceTest extends \PHPUnit_Extensions_SeleniumTestCase
{
    public function testFoo()
    {
        throw new \Exception();
    }
}

/**
 * Argument 5 passed to PHPUnit_Framework_Error::__construct() must be an instance of Exception, array given, called in PHPUnit/Extensions/SeleniumTestCase.php on line 
 * 1152 and defined
 *
 * PHPUnit 3.7.1, PHPUnit_Selenium 1.2.8
 */