@BeforeClass and inheritance - order of execution

Question

I have an abstract base class, which I use as a base for my unit tests (TestNG 5.10). In this class, I initialize the whole environment for my tests, setting up database map

Answer 1

I added public to the abstract class and TestNG (6.0.1) executed the doInitialization() before doTests. TestNG does not execute doInitialization() if I remove public from class A.

public abstract class A {
 @BeforeClass
 doInitialization() {...}
}

class B extends A {    
 @Test
 doTests() {...}
}