Exception in Behavior

Question

Hello!
Well here's the thing. Me and my groupmates were supposed to create a simulation of a bacteria. So we have to do some "division". So far, I've encountered a lot of problems in doing the project since Ive only started using java3d this month. Now, my major concern is this exception i get with my behavior class. well, i made nested classes so that i could access some information from the other classes through the global variables. It worked ok but when i decided to do some collision detection, i started getting an exception. Guys!!!Please help me out!
Here's the code for my behavior class
class AcidTolerantRhizobiaBehavior1 extends Behavior{
          private TransformGroup targetTG;
          WakeupCriterion[] criterion;
          WakeupOnElapsedTime wake;
          WakeupOr oredCriteria;
          int ctrTester = 0;
          // create SimpleBehavior - set TG object of change
          AcidTolerantRhizobiaBehavior1(TransformGroup targetTGInput){
          targetTG = targetTGInput;
          System.out.println("hello");
          // initialize the Behavior
          // set initial wakeup condition
          // called when behavior becomes live
          public void initialize(){
               // set initial wakeup condition
               criterion = new WakeupCriterion[4];
               criterion[0] = new WakeupOnElapsedTime(150);
               criterion[1] = new WakeupOnCollisionEntry(targetTG);
          criterion[2] = new WakeupOnCollisionExit(targetTG);
          criterion[3] = new WakeupOnCollisionMovement(targetTG);
          oredCriteria = new WakeupOr(criterion);
          wakeupOn(oredCriteria);
          // called by Java 3D when appropriate stimulus occurs
          public void processStimulus(Enumeration criteria){
               // do what is necessary in response to stimulus
               //if (criteria.hasMoreElements()){
               WakeupCriterion theCriterion = (WakeupCriterion) criteria.nextElement();
          if (theCriterion instanceof WakeupOnCollisionEntry) {
               tester = false;
               ctrTester = 0;
          Node theLeaf = ((WakeupOnCollisionEntry) theCriterion)
          .getTriggeringPath().getObject();
          System.out.println("Collided with " + theLeaf.getUserData());
          } else if (theCriterion instanceof WakeupOnCollisionExit) {
          Node theLeaf = ((WakeupOnCollisionExit) theCriterion)
          .getTriggeringPath().getObject();
          System.out.println("Stopped colliding with "
          + theLeaf.getUserData());
          tester = false;
          ctrTester = 0;
          } else if (theCriterion instanceof WakeupOnCollisionMovement){
          Node theLeaf = ((WakeupOnCollisionMovement) theCriterion)
          .getTriggeringPath().getObject();
          System.out.println("Moved whilst colliding with "
          + theLeaf.getUserData());
          tester = false;
          ctrTester = 0;
               else {
          System.out.println("hello");
               Vector3f currentLocation = new Vector3f();
               Transform3D tempTransform = new Transform3D();
               //assign the transform3d of the target to tempTransform
               targetTG.getTransform(tempTransform);
               //get the currentlocation of the object
               tempTransform.get(currentLocation);
               System.out.println(currentLocation);
               TransformGroup tg = targetTG;
               double cmp = Math.random();
               Vector3f newLocation = null;
               if((cmp >= 0.0)&&(cmp <=0.25))
                    newLocation = new Vector3f(currentLocation.x + .5f, currentLocation.y , currentLocation.z);
               else if((cmp > 0.25)&&(cmp <=0.5))
                    newLocation = new Vector3f(currentLocation.x , currentLocation.y , currentLocation.z+ .5f);
               else if((cmp > 0.5)&&(cmp <=0.75))
                    newLocation = new Vector3f(currentLocation.x - .5f, currentLocation.y , currentLocation.z);
               else if((cmp > 0.75)&&(cmp <=1.0))
                    newLocation = new Vector3f(currentLocation.x, currentLocation.y , currentLocation.z - .5f);
               tempTransform.set(newLocation);
               targetTG.setTransform(tempTransform);
               if(ctrTester == 10){
                    tester = true;
                    ctrTester = 0;
                    idWillMultiply.add(id + ""); //idWillMultiply contains the id's of the bacteria that will multiply
               //this.initialize();                     
               ctrTester++;
               wakeupOn(oredCriteria);
....and the exception goes like this:
Exception occurred during Behavior execution:
java.util.NoSuchElementException: No more criterion
     at javax.media.j3d.WakeupCriteriaEnumerator.nextElement(WakeupCriteriaEnumerator.java:130)
     at simulation1$AcidTolerantRhizobia1$AcidTolerantRhizobiaBehavior1.processStimulus(simulation1.java:477)
     at javax.media.j3d.BehaviorScheduler.doWork(BehaviorScheduler.java:172)
     at javax.media.j3d.J3dThread.run(J3dThread.java:256)
And it's really driving me nuts because i have to get it done this week and so far i got stuck with this problem.help!

Answer 1

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