FilterOutputStream.close() throws exception from flush()

[Alan Bateman]

On 10/02/2012 13:52, Alex Lam S.L. wrote:
> Hi there,
>
> Thanks for the pointer - I wasn't able to trace back to that email for
> some reasons.
>
> The problem is that:
>
>   - flush() is reporting IOException because underlying stream is closed
>   - close() is then forwarding that IOException now in JavaSE 8
>
> I guess my question is: what is the best way to check and avoid the
> case where OutputStream is already closed?
>
Do you know what the type of the underlying stream is? Clearly flush 
should fail if there are bytes to flush and the stream is open. Whether 
calling flush on a closed stream should fail or not isn't clear from the 
javadoc.

-Alan