Merges the given {@link AuthenticationInfo} into this instance. The specific way
that the merge occurs is up to the implementation, but typically it involves combining
the principals and credentials together in this instance. The <code>info</code> argument should
not be modified in any way.
@param info the info that should be merged into this instance.
Merges the given {@link AuthenticationInfo} into this instance. The specific way that the merge occurs is up to the implementation, but typically it involves combining the principals and credentials together in this instance. The <code>info</code> argument should not be modified in any way.
@param info the info that should be merged into this instance.