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IndexOutOfBoundsException: Index: 0, Size: 0 thrown from custom validator

sam White
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I don't know why I am having the following exception:

13:15:49,666 ERROR [ForestsurfClient.validators.ForestsurfEmailValidator] (http-- ====ForestsurfEmailValidator exceptoin:javax.ejb.EJBException: java.lang.RuntimeException: javax.ejb.EJBException: java.lang.IndexOutOfBoundsException: Index: 0, Size: 0

My validator:

Any suggestion is very appreciated.
It is sorta covered in the JavaRanch Style Guide.
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