java.lang.ClassCastException: This exception has no message.

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at net.sf.hibernate.type.ArrayType.getElementsIterator(
at net.sf.hibernate.engine.Cascades.cascade(
at net.sf.hibernate.engine.Cascades.cascade(
at net.sf.hibernate.impl.SessionImpl.doSave(
at net.sf.hibernate.impl.SessionImpl.saveOrUpdate(
at net.sf.hibernate.engine.Cascades$3.cascade(

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