Refactor TestdataStatement

[occupant23]

Is the empty constructor required for this class or can it be removed?

     public TestdataStatement()
     {
     }

[oomelianchuk]

This constructor, as well as a similar constructor for the ParameterStatement, is needed to be able to instantiate the class object in StatementBuilder.instantiate(Class<T> clazz) method. In turn, this is needed for real object instantiation via constructors with input parameters in the method TestdataStatement.createIterationData(TestClass testClass, FrameworkMethod method).

I agree, that this structure might be too complex but I could not come up with a simpler solution. Do you have some ideas?
Otherwise, we should probably just add an explanation comment above both constructors.

[occupant23]

@oomelianchuk: Thanks for the research. A comment would be much appreciated!
Other questions:

• Should or do we need to set up some default values on instantiation?
• Could we make this package protected if all needed classes would be located within the same package?