Any major performance change with I/O from JDK 6 that one should be aware of?

[Alan Bateman]

On 13/05/2012 23:25, Fabrizio Giudici wrote:
>
> Ok, I was told it's the wrong place. But if I try to submit it to 
> bugs.sun.com as Mac OS X (non Oracle) is rejected. I've filed it as 
> Mac OS X (Oracle) even though it's OpenJDK 7. I hope it's correct.
>
> http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=7168505
>
Thanks, I think see what's going on. Can you try on exclude 
MappedByteBuffer.load from compilation and re-run your tests to see if 
that "fixes" the problem, ie:

cat > .hotspot_compiler << EOF
exclude java/nio/MappedByteBuffer load
EOF

You'll know if you've excluded it if you get a message such ### 
Excluding compile ... message.

-Alan.