[freenet-dev] Classpath vs. Sun-Java diffs

[Daniel Cheng]

On Sun, Apr 13, 2008 at 11:02 PM, Michael Rogers <m.rogers at cs.ucl.ac.uk> wrote:
> I agree it would be nice if the JVM threw an exception but it's not a
>  bug if it fails to do so - see
>  http://java.sun.com/j2se/1.4.2/docs/api/java/util/ConcurrentModificationException.html
>
>  "Fail-fast operations throw ConcurrentModificationException on a
>  best-effort basis. Therefore, it would be wrong to write a program that
>  depended on this exception for its correctness:
>  ConcurrentModificationException should be used only to detect bugs."
>
>  Mind you, that's for Iterators - I'm not sure that Enumerations even
>  check for concurrent modification.

Check http://java.sun.com/j2se/1.4.2/docs/api/java/util/Hashtable.html .
: The Enumerations returned by Hashtable's keys and values methods are
not fail-fast.

i.e. It won't throw ConcurrentModificationException.

Hashtable is for JDK1.1 compatibility. new code should use other
java.util.Map instead.

Regards,
Daniel Cheng