Hi,
HADOOP-2808 introduced a new signature for the copy method that takes an
overwrite flag.
Before this patch the behavior, for the pre-existing copy method, was
that if the destination existed an IOException was thrown. After this
patch the behavior, for the pre-existing copy method, is that if the
destination exists it is overwritten.
The behavior of the pre-existing copy method should not have changed.
Regards,
Subru
