catch (ExprValidationException e) {
throw new EPException(e.getMessage(), e);
}
// make updater
NamedWindowUpdateHelper updateHelper;
try {
updateHelper = NamedWindowUpdateHelper.make(processor.getNamedWindowName(),
(EventTypeSPI) processor.getNamedWindowType(), updateSpec.getAssignments(), aliasName, null);
}
catch (ExprValidationException e) {