} catch (ArtifactResolverException e) {
                if (e.getResult().getResults().values().iterator().next().isMissing() && allowStubModel) {
                    return build(parent, null, createStubModelSource(artifact));
                }
                throw new ProjectBuildingException(
                        artifact.getId(), "Error resolving project artifact: " + e.getMessage(), e);
            }