[BUG ?] Global Queue look weird?

[Larandar]

First of all this is the TestClass where bug come :

import org.fusesource.hawtdispatch.*;
public class TestClass {

    public static class HawtDispatchTest implements Runnable {
        public String string ;
        public HawtDispatchTest( String string ) {
            this.string = string;
        }

        public void run() {
            System.out.println( this.string );
        } 
    }

    public static void main(String[] args) {
        // Use 1 threads
        System.setProperty("hawtdispatch.threads", "1" );

        for ( int i = 0 ; i < 10000 ; i++ ) {
            for ( DispatchPriority priority : DispatchPriority.values()) {
                Dispatch.getGlobalQueue(priority).execute(new HawtDispatchTest(priority.toString() + " : " + i));
            }
        }
    }
}

So now the weird thing , the log :

HIGH : 0
DEFAULT : 0
LOW : 0
HIGH : 1
DEFAULT : 1
...........
HIGH : 44
DEFAULT : 44
LOW : 44
HIGH : 45
DEFAULT : 45
LOW : 45
LOW : 46
LOW : 47
LOW : 48
LOW : 49
LOW : 50
LOW : 51
...........
LOW : 522
LOW : 523
LOW : 524
LOW : 525
LOW : 526
LOW : 527
LOW : 528
HIGH : 46
HIGH : 47
HIGH : 48
HIGH : 49
HIGH : 50
HIGH : 51
HIGH : 52
HIGH : 53
HIGH : 54
HIGH : 55
HIGH : 56
HIGH : 57
HIGH : 58
HIGH : 59
HIGH : 60
HIGH : 61
HIGH : 62
HIGH : 63
HIGH : 64
HIGH : 65
HIGH : 66
HIGH : 67
HIGH : 68
...........
HIGH : 235
HIGH : 236
HIGH : 237
HIGH : 238
HIGH : 239
HIGH : 240
HIGH : 241
LOW : 529
LOW : 530
DEFAULT : 46
DEFAULT : 47
DEFAULT : 48
DEFAULT : 49
DEFAULT : 50
DEFAULT : 51
DEFAULT : 52
DEFAULT : 53
DEFAULT : 54
DEFAULT : 55
...........
DEFAULT : 618
DEFAULT : 619
DEFAULT : 620
DEFAULT : 621
DEFAULT : 622
DEFAULT : 623

First thread is in sync, then when not sync GlobalQueue execute LOW priority then HIGHT then DEFAULT.
Does my using method not good ? I will prefer the global queue to do HIGHT then DEFAULT then LOW, there is a way to do it ?
Thank

PS: Task after 630 was not execute.
PPS : Was running in ANT to slow down, in java -jar result are more weird on my computer by changing tendance several time, but go to 2500 in test