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[Bug classpath/29086] AbstractCollection.toArray(T[]) has 'unreachable'
From: |
tromey at gcc dot gnu dot org |
Subject: |
[Bug classpath/29086] AbstractCollection.toArray(T[]) has 'unreachable' code |
Date: |
18 Sep 2006 16:32:06 -0000 |
------- Comment #1 from tromey at gcc dot gnu dot org 2006-09-18 16:32 -------
I think that (T) cast is not a no-op.
T is a type parameteer of toArray.
However the container is parameterized by E, a different type variable.
Our iterator has type Iterator<E>, so the result of
itr.next() has type E. So, an explicit cast is still needed.
We can get a ClassCastException if the user passes in an array whose
type is not compatible with E.
--
tromey at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |tromey at gcc dot gnu dot
| |org
Status|UNCONFIRMED |WAITING
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29086