// similar component for re-usage
        if (file != null) {
            if (file.isAbsolute()) {
                // path was already absolute, just normalize file separator and we're done
            } else if (file.getPath().startsWith(File.separator)) {
                // drive-relative Windows path, don't align with project directory but with drive root

        public int getType() {
            return LIST_ITEM;
        }

        @Override
        public boolean isNull() {
            return (size() == 0);
        }

        void normalize() {
            for (int i = size() - 1; i >= 0; i--) {
                Item lastItem = get(i);

                if (lastItem.isNull()) {
                    if (i == size() - 1 || get(i + 1).getType() == STRING_ITEM) {

                    "Java toolchain without the " + JavaToolchainImpl.KEY_JAVAHOME + " configuration element.");
        }
        Path normal = Paths.get(javahome.getValue()).normalize();
        if (Files.exists(normal)) {
            jtc.setJavaHome(Paths.get(javahome.getValue()).normalize().toString());
        } else {
            throw new MisconfiguredToolchainException(

        }

        private final UrlNormalizer normalizer;

        UrlNormalizingPostProcessor(UrlNormalizer normalizer) {
            this.normalizer = normalizer;
        }

        @Override
        public Object execute(String expression, Object value) {
            if (value != null && URL_EXPRESSIONS.contains(expression)) {
                return normalizer.normalize(value.toString());
            }

            if (retValue.length() >= 2 && retValue.charAt(1) == '|') {
                retValue = retValue.charAt(0) + ":" + retValue.substring(2);
            }

            // normalize separators
            retValue = new File(retValue).getPath();
        }

        if (retValue == null) {
            retValue = "/";
        }
        return retValue.trim();
    }

    /**

        // file. Ideally, we'd do full pattern-evaluation against the sysprops, but this
        // is a first step. There are several replacements below, in order to normalize
        // the path character before we operate on the string as a regex input, and
        // in order to avoid surprises with the File construction...

                } else {
                    Path topDirectory = mavenSession.getTopDirectory();
                    Path locationPath = Paths.get(location).toAbsolutePath().normalize();
                    if (locationPath.startsWith(topDirectory)) {
                        locationPath = topDirectory.relativize(locationPath);
                    }

        Path path = getPath().getParent().resolve(norm);
        Path relatedPom = locator.locateExistingPom(path);
        if (relatedPom != null) {
            return new PathSource(relatedPom.normalize(), null);
        }
        return null;
    }

    @Override
    public boolean equals(Object o) {
        return this == o || o instanceof PathSource ps && Objects.equals(path, ps.path);
    }

    }

    public String toString() {
        return "JDK[" + getJavaHome() + "]";
    }

    public String findTool(String toolName) {
        Path toRet = findTool(toolName, Paths.get(getJavaHome()).normalize());
        if (toRet != null) {
            return toRet.toAbsolutePath().toString();
        }
        return null;
    }

    private static Path findTool(String toolName, Path installDir) {

java.io.InputStream, String, java.util.Date, boolean) throws Exception; public void setDest(java.io.File); public void setSrc(java.io.File); public void setOverwrite(boolean); public java.io.File resolveFile(java.io.File, String); public java.io.File normalize(String); } org/codehaus/plexus/util/FastMap$1.class package org.codehaus.plexus.util; synchronized class FastMap$1 { } org/codehaus/plexus/util/FastMap$EntryImpl.class package org.codehaus.plexus.util; final synchronized class FastMap$EntryImpl implements...