nio.Selector behavior?

Wed Oct 29 06:31:00 GMT 2003

(I always try to search the archives to see if this
has been pointed out. Sorry if it's a duplicate...)
While doing some testing, I was curious if a Selector
could be used for sleeping, like select() when it called
with null parameters except the timeout:
import java.nio.channels.*;
public class Select {
 public static void main(String Args[]) {
 try {
 Selector mySelector = Selector.open();
 // No registered channels
 mySelector.select(10000);
 }
 catch (java.io.IOException IOe) {}
 }
}
Strangely, Sun's java 1.4.2 gives different
results than gij/gcj 3.3.2:
$ time java -cp . Select

real 0m10.194s
user 0m0.130s
sys 0m0.040s
$ time gij Select

real 0m0.121s
user 0m0.100s
sys 0m0.010s
Without any registered channels gij doesn't try
but java does.
What is the correct behavior?
Thanks in advance.
--erikp--