It shouldn't be required as there is no ambiguity with your web service here and it's possible you need to set the targetNamespace in order for it to correctly find the attribute.
I have the same Message in my glassfish console. In my android project with ksoap function I changed the following code.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.