private void validateWrapExceptions() {
        try {
            validate();
        } catch (RuntimeException e) {
            throw e;
        } catch (Exception e) {
            throw new RuntimeException("Error while validating model:", e);
        }
    }
Creates a mutable model with no services instantiated
config-model/src/main/java/com/yahoo/vespa/model/VespaModel.java