this.key = getGroupId()
                + ':'
                + getArtifactId()
                + ':'
                + getExtension()
                + (getClassifier().isEmpty() ? "" : ":" + getClassifier())
                + ':'
                + getVersion();
    }

    public org.eclipse.aether.artifact.Artifact getArtifact() {
        return artifact;
    }

    @Override

                    paths.put(artifact, path);
                } else {
                    requests.add(new ArtifactRequest(aetherArtifact, repositories, null));
                }
            }
            if (!requests.isEmpty()) {
                List<ArtifactResult> results =
                        session.getRepositorySystem().resolveArtifacts(session.getSession(), requests);
                for (ArtifactResult result : results) {

                        }
                    });
                } catch (UncheckedIOException e) {
                    throw e.getCause();
                }
                if (!names.isEmpty()) {
                    descriptors = Collections.unmodifiableMap(names);
                    isModuleHierarchy = true;
                    return;
                }
            }

        new DefaultConsumerPomArtifactTransformer((session, project, src) -> null)
                .injectTransformedArtifacts(systemSessionMock, emptyProject);

        assertThat(emptyProject.getAttachedArtifacts()).isEmpty();
    }

    private static class NoTransformerContext implements TransformerContext {
        @Override
        public String getUserProperty(String key) {
            return null;
        }

        if (!blackList.contains(id)) {
            blackList.add(id);

            List<String> dependents = sorter.getDependents(id);

            if (dependents != null && !dependents.isEmpty()) {
                for (String dependentId : dependents) {
                    if (!buildSuccessesByProject.containsKey(dependentId)
                            && !buildFailuresByProject.containsKey(dependentId)) {

            messageBuffer.append("</configuration>");

            String alias = param.getAlias();
            if ((alias != null && !alias.isEmpty()) && !alias.equals(param.getName())) {
                messageBuffer.append(LS).append(LS).append("-OR-").append(LS).append(LS);
                messageBuffer
                        .append("<configuration>")

        }

        metadata = metadata.withVersioning(versioning.build());

        // just carry-on as-is
        if (recessive.getPlugins() != null && !recessive.getPlugins().isEmpty()) {
            metadata = metadata.withPlugins(new ArrayList<>(recessive.getPlugins()));
        }
    }

    public Object getKey() {
        return getGroupId() + ':' + getArtifactId();
    }

            }
        }

        return null;
    }

    private PluginExecution findPluginExecution(String executionId, Collection<PluginExecution> executions) {
        if (executionId != null && !executionId.isEmpty()) {
            for (PluginExecution execution : executions) {
                if (executionId.equals(execution.getId())) {
                    return execution;
                }
            }
        }

            // treat .X as -X for any string qualifier X
            if (!isDigit && !list.isEmpty()) {
                list.add(list = new ListItem());
                stack.push(list);
            }

            list.add(parseItem(isCombination, isDigit, version.substring(startIndex)));
        }

        while (!stack.isEmpty()) {
            list = (ListItem) stack.pop();
            list.normalize();
        }

        this.resolutionNodes = resolutionNodes;
    }

    public boolean hasMissingArtifacts() {
        return missingArtifacts != null && !missingArtifacts.isEmpty();
    }

    public List<Artifact> getMissingArtifacts() {
        return missingArtifacts == null ? Collections.emptyList() : Collections.unmodifiableList(missingArtifacts);
    }