[dtrace-discuss] Java hotspot monitor-contended-enter probe

[Tigran Mkrtchyan]

By reading manual, I have an impression that this probe is fired when a thread 
enters a synchronized block, but in my simple example it did not.

<p>If this is not the right probe for it which one I have to use?

<p>Thanks,
   Tigran.


<p>P.S: my test app
<pre>
import java.util.concurrent.TimeUnit;
import java.util.Vector;
public class a {

   public static void main(String[] args) throws Exception  {
      Vector v = new Vector();
      final Object lock = new Object();
      for(int i = 0; i &lt; 100000; i++) {
          synchronized(lock) {
             v.add(i);
          }
             try {
                 TimeUnit.SECONDS.sleep(2);
                 System.out.print(".");
             } catch (InterruptedException ex) {
                 ex.printStackTrace();
             }

      }
      System.out.println("\n");
   }
}
</pre>
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