c.toArray might (incorrectly) not return Object (see 6260652)
dl at cs.oswego.edu
Fri May 22 11:31:50 UTC 2009
David Holmes - Sun Microsystems wrote:
> Thanks for the info, one query though ...
> Ummm why didn't it just use:
> elementData = c.toArray(new Object[c.size()]);
Because "c" might be a concurrent collection, so you
don't want to independently call c.size(). Notice
that AbstractCollection correctly implements
toArray() even for such collections but cannot do so
for toArray(T a) because it must interpret
a.length as the required size.
More information about the core-libs-dev