I answered my own question, this is the approach I follow:
@RunWith(Suite.class)
@SuiteClasses({ com.manuel.package1..AllTests.class,
com.manuel.package2.AllTests.class })
public class RunAllTests {
}
And then, in each AllTests.class
@RunWith(Suite.class)
@SuiteClasses({ TestCase1.class, TestCase2.class, TestCase3.class, TestCase4.class })
public class AllTests {
}