if (!hasBeenPackagedDuringThisSession(project)) {
            // fallback to loose class files only if artifacts haven't been packaged yet
            // and only for plain old jars. Not war files, not ear files, not anything else.
            return determineBuildOutputDirectoryForArtifact(project, artifact);
        }

        // The fall-through indicates that the artifact cannot be found;

        String originalPackaging = project.getOriginalModel().getPackaging();
        if (POM_PACKAGING.equals(packaging) && !BOM_PACKAGING.equals(originalPackaging)) {
            return buildPom(session, project, src);
        } else {
            return buildNonPom(session, project, src);
        }
    }

    protected Model buildPom(RepositorySystemSession session, MavenProject project, Path src)
            throws ModelBuilderException {

                    }
                    projects.add(projectBuilder.build(modulePom, configuration).getProject());
                }
            }
        } else {
            MavenProject project = createStubMavenProject();
            project.setRemoteArtifactRepositories(request.getRemoteRepositories());

        if (repositories != null) {
            return repositories;
        } else if (resolverRepositories != null) {
            return map(resolverRepositories, DefaultRemoteRepository::new);
        } else {
            throw new IllegalArgumentException("no remote repositories provided");
        }
    }

    @Nonnull
    @Override

                    result.setArtifact(relocatedArtifact);
                    return model; // they share same model
                } else {
                    result.addRelocation(a);
                    a = relocatedArtifact;
                    result.setArtifact(a);
                }
            } else {
                return model;
            }
        }
    }