public Integer poll() {
		int i = pollInt();
		if(i == Integer.MIN_VALUE) {
		    return null;
		}
		return i;
	}
This is to be used for an IPC queue with the direct buffer used being a memory
mapped file.

@param buff
@param capacity
@param viewMask
jctools-experimental/src/main/java/org/jctools/queues/SpscOffHeapIntQueue.java