Suggested fix for JDK-4724038 (Add unmap method to MappedByteBuffer)

Andrew Haley aph at
Wed Sep 9 13:17:31 UTC 2015

On 09/09/2015 02:13 PM, David M. Lloyd wrote:
> How would you hook into the safepoint to perform the unmapping?  You'd 
> have to wait for all threads to arrive at safepoints, wouldn't you?

Yes.  That happens in the VM already, e.g. when we need to revoke the
bias of a lock.  It's a well-established mechanism.


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