On 10/02/2013 06:31 PM, Alan Bateman wrote:
One thing that I'd like to understand is the implication of moving
from phantom to weak references.
I think Cleaners as WeakReferences are not correct.
Imagine the following code:
Reference<ByteBuffer> refBb;
{
ByteBuffer dbb = ByteBuffer.allocateDirect(1000);
refBb = new SoftReference<>(dbb);
}
System.gc(); // can clear Cleaners, might already process them
ByteBuffer dbb = refBb.get(); // whoops!
...you could get a reference to direct ByteBuffer after the cleaner has
already deallocated it's native memory block...
Back to PhantomReference, I think.
Peter
