when will Tuple be std?

I am an experienced C++ programmer who has just recently started
learning java. In C++ there is a type std::pair for an aggregate
consisting of a first element and second element. There are moves to
extend this in the next version of the std to provide a Tuple class as
a general case where the aggregate can contain more than two members.
I have the need for a Tuple in my java program and hoped it would be
there as std. I cannot find it.

I have found the project, http://javatuple.com/index.shtml, which is
useful and encouraging, but I wonder how long it will be before Tuple
is std. The fact that this project exists shows I am not the only one
that wants to see a Tuple class in java.

Regards,

Andrew Marlow

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