// interprets errorDests-field.
private void setErrorDests(Section settingsSection, Map dests) throws RulesetException {
Field errorField = settingsSection.getField("errorDests");
if (errorField == null) {
throw new MissingFieldException(settingsSection, "errorDests",
"Happened within Messages.setErrorDests");
} else {
errDests = new Destination[errorField.getNumberOfValues()];
for (int n = 0; n < errorField.getNumberOfValues(); n++) {
if (!errorField.isStringValue(n)) {