Comparable[] c = new Comparable[versions.length];
        for (int i = 0; i < versions.length; i++) {
            c[i] = newComparable(versions[i]);
        }

        for (int i = 1; i < versions.length; i++) {
            Comparable low = c[i - 1];
            for (int j = i; j < versions.length; j++) {
                Comparable high = c[j];

            }

            File pomFile = pomArtifact.getFile();
            if (pomFile != null && pomFile.canRead()) {
                this.length = pomFile.length();
                this.timestamp = pomFile.lastModified();
            } else {
                this.length = -1;
                this.timestamp = -1;
            }
        }

        public Artifact getArtifact() {
            return pomArtifact;

        // execute
        ToolchainPrivate[] toolchains = toolchainManager.getToolchainsForType("basic", session);

        // verify
        verify(logger, never()).error(anyString());
        assertEquals(1, toolchains.length);
    }

    @Test
    void testToolchainsForUnknownType() throws Exception {
        // prepare
        MavenSession session = mock(MavenSession.class);

                    break;
                }
            }

            if (basedirExpr != null) {
                if (s.length() > basedirExpr.length()) {
                    // Take out basedir expression and the leading slash
                    s = chopLeadingFileSeparator(s.substring(basedirExpr.length()));
                } else {
                    s = ".";
                }
            }
        }

        if (version != null) {
            if (version.regionMatches(
                    true,
                    version.length() - Artifact.SNAPSHOT_VERSION.length(),
                    Artifact.SNAPSHOT_VERSION,
                    0,
                    Artifact.SNAPSHOT_VERSION.length())) {
                return true;
            } else {
                return Artifact.VERSION_FILE_PATTERN.matcher(version).matches();

                        String[] parts = l.split(splitExpr);
                        if (parts.length < 1) {
                            throw new IllegalArgumentException("Unrecognized entry: " + l);
                        }
                        Artifact s = parseArtifact(parts[0]);
                        Artifact t;
                        if (parts.length > 1) {
                            t = parseArtifact(parts[1]);

        String myClasspathEntry = myResource.getPath();

        myClasspathEntry = myClasspathEntry.substring(0, myClasspathEntry.length() - (myResourcePath.length() + 2));

        if (myClasspathEntry.startsWith("file:")) {
            myClasspathEntry = myClasspathEntry.substring("file:".length());
        }

        URL docResource;
        try {
            docResource = new File(myClasspathEntry).toURL();

                                Path basedir = projectDir.toAbsolutePath();
                                return new ObjectBasedValueSource(basedir)
                                        .getValue(expression.substring("basedir.".length()));
                            }
                            return null;
                        }
                    },
                    getProjectPrefixes(request),
                    true);

                checkForUpdates = true;
            }
        } else if (updatePolicy.startsWith(UPDATE_POLICY_INTERVAL)) {
            String s = updatePolicy.substring(UPDATE_POLICY_INTERVAL.length() + 1);
            int minutes = Integer.parseInt(s);
            Calendar cal = Calendar.getInstance();
            cal.add(Calendar.MINUTE, -minutes);
            if (cal.getTime().after(lastModified)) {

                    PluginVersionResolutionException {
        String goal = null;

        Plugin plugin = null;

        String[] tok = task.split(":");

        int numTokens = tok.length;

        if (numTokens >= 4) {
            // We have everything that we need
            //
            // org.apache.maven.plugins:maven-remote-resources-plugin:1.0:process
            //