ParallelSuite

In JUnit 4 there is a Suite class to gather JUnit tests to a test suite:

@RunWith(Suite.class)
@Suite.SuiteClasses({
JunitTest1.class,
JunitTest2.class
})
public class MyLittleTestSuite {
}

It would be nice to have a ParallelSuite with the same functionality. But it should run the JUnit classes in parallel to speed up the execution.