ClassCastException after retrieving an Entry

Hello,

I'm trying to build a simple compute server for distributing some Tasks over
the network. Currently I am experiencing some problems ans I was hoping
someone here can maybe help.

On the Worker side I take the Entry from the JavaSpace. Then I try to cast
it from Entry to my custom class TaskEntry and I get the following
exception.

java.lang.ClassCastException: org.ac.computegrid.jobs.fibfact.FactorialTask
        at
org.ac.computegrid.worker.GenericWorker.loop(GenericWorker.java:117)
        at org.ac.mvc.ExtThread.run(ExtThread.java:399)
        at java.lang.Thread.run(Unknown Source)

The FactorialTask which I get from the Space is extends TaskEntry and
therefore should be possible to be casted to TaskEntry.

I was hoping anyone could point me to what the problem might be.

Thanks in advance.


Christian Hager

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