/**
     * OS Family
     */
    public static final String OS_FAMILY;

    /**
     * Boolean indicating if the running OS is a Windows system.
     */
    public static final boolean IS_WINDOWS;

    /**
     * OS family that can be tested for. {@value}
     */
    private static final String FAMILY_WINDOWS = "windows";

    /**
     * OS family that can be tested for. {@value}
     */

     */
    public static void addEnvVars(Properties props) {
        if (props != null) {
            if (envVars == null) {
                Properties tmp = new Properties();
                boolean caseSensitive = !Os.IS_WINDOWS;
                for (Map.Entry<String, String> entry : System.getenv().entrySet()) {
                    String key = "env."

                                null);
                        result.getProblems().add(problem);
                        continue;
                    }

                    if (Os.IS_WINDOWS) {
                        // we don't canonicalize on unix to avoid interfering with symlinks
                        try {
                            moduleFile = moduleFile.getCanonicalFile();

        return null;
    }

    private static Path findTool(String toolName, Path installDir) {
        Path bin = installDir.resolve("bin"); // NOI18N
        if (Files.isDirectory(bin)) {
            if (Os.IS_WINDOWS) {
                Path tool = bin.resolve(toolName + ".exe");
                if (Files.exists(tool)) {
                    return tool;
                }
            }
            Path tool = bin.resolve(toolName);