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Get null with the HashMap

807606 Newbie
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Hi all,

I need a help with HashMap. I have a set of classes. In one of them I initialized the HashMap to put the key with the object in a method.

First, the attribute was:

private HashMap hm ;

Then, I did like this:

public void enqueue_Task(Poisson_output e) {
          hm = new HashMap();
          JobSpecifications t = new JobSpecifications();
          hm.put(t.getPoisson_output().getSequence(), t);

Then, I wrote this method:

public HashMap getHash(){
          return hm;

to call it in the other classes, so I will be able to use the HashMap with its values( keys and objects).

After that, and in another class, I initialized the HashMap again;

private HashMap e;

with this constructor:

public PoissonSimulation(int time) {
e = q.getHash();

And finally, I use this method to get the object with a specific key:

     public JobSpecifications search(double key){
          return (JobSpecifications) e.get(key);


Thats it. But, the problem is that when I ran the last method I get a null value!

Any help!
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