public void close3()
{
FreePool p = new FreePool(2);
p.Close();
p.Close();
}
public void close2()
{
// free pool thread count exceeded or pool closed
FreePool p = new FreePool(2);
p.Close();
MyPoolRunnable r = new MyPoolRunnable(0, false);
p.Run(r.run, r.exception);
}