Java: BuildArch: noarch + ExclusiveArch ?

[Jacek Konieczny]

Now, when we have java-sun working, we may start building Java
packages... but only on builder for which there is java-sun version
(recent x86  and x86_64). On the other hand, the result will be
architecture independent in most cases.

Will it be ok to use both "BuildArch: noarch" and ExclusiveArch (to skip
building on unsupported builders) in one spec?

Greets,
        Jacek