return Stream.of(projectProfiles, settingsProfiles, superPomProfiles)
                .flatMap(Function.identity())
                .collect(toSet());
    }

    /**
     * Check whether the required profiles were found in any of the projects we're building or the settings.
     * @param session the Maven session.
     * @param profileActivation the requested optional and required profiles.
     */

  anticipate the inevitable network failures that accompany being physically
  disconnected from the network, and adjust it's behavior accordingly.

  It is more than simply understanding that m2 cannot go and check for the
  latest version of some snapshot artifact. If m2 is offline, SCM operations
  cannot succeed; no artifact downloads can take place, regardless of whether

    }

    private boolean isSpecificVersion(String version) {
        return !((version == null || version.isEmpty()) || version.startsWith("[") || version.startsWith("("));
    }

    // TODO !![jc; 28-jul-2005] check this; if we're using '-r' and there are aggregator tasks, this will result in
    // weirdness.
    public MavenProject getTopLevelProject() {
        return sortedProjects.stream()

            }

            int i = QUALIFIERS.indexOf(qualifier);

            // Just returning an Integer with the index here is faster, but requires a lot of if/then/else to check for
            // -1
            //  or QUALIFIERS.size and then resort to lexical ordering. Most comparisons are decided by the first
            // character,

        }

        ArtifactResolutionResult result = new ArtifactResolutionResult();

        // The root artifact may, or may not be resolved so we need to check before we attempt to resolve.
        // This is often an artifact like a POM that is taken from disk and we already have hold of the

                        .debug("Skipping update check for " + artifact + " (" + file + ") from " + repository.getId()
                                + " (" + repository.getUrl() + ")");
            }

            return false;
        }

        if (getLogger().isDebugEnabled()) {
            getLogger()
                    .debug("Determining update check for " + artifact + " (" + file + ") from " + repository.getId()

        assertWagon("b");

        assertWagon("c");

        assertWagon("string");

        assertThrows(UnsupportedProtocolException.class, () -> assertWagon("d"));
    }

    /**
     * Check that transfer listeners are properly removed after getArtifact and putArtifact
     */
    @Test
    void testWagonTransferListenerRemovedAfterGetArtifactAndPutArtifact() throws Exception {

         * gets occasionally extended by newer Maven versions). This imposes the risk for existing plugins to
         * unintentionally use such a magic expression for an ordinary property. So here we check whether we
         * ended up with a magic value that is not compatible with the type of the configured mojo parameter (a string

        }

        ArtifactHandler handler = newHandler(artifact);

        /*
         * NOTE: From Artifact.hasClassifier(), an empty string and a null both denote "no classifier". However, some
         * plugins only check for null, so be sure to nullify an empty classifier.
         */
        org.apache.maven.artifact.Artifact result = new org.apache.maven.artifact.DefaultArtifact(
                artifact.getGroupId(),

                    descriptors = Collections.singletonMap(path, name);
                    isModuleHierarchy = false;
                    return;
                }
                // No module descriptor, check manifest file.
                Manifest mf = jar.getManifest();
                if (mf != null) {
                    Object name = mf.getMainAttributes().get(AUTO_MODULE_NAME);