return LaRequestUtil.getOptionalRequest().map(req -> {
            for (final Tuple3<String, String, String> host : vHosts) {
                final String headerValue = req.getHeader(host.getValue1());
                if (host.getValue2().equalsIgnoreCase(headerValue)) {
                    return func.apply(host.getValue3());
                }
            }
            return defaultValue;

    private final Header header;

    public HttpClientHttpHeaderCredentials(String name, String value) {
        this.header = new BasicHeader(name, value);
    }

    public Header getHeader() {
        return header;
    }

    @Override
    public Principal getUserPrincipal() {
        return null;
    }

    @Override
    public String getPassword() {
        return null;
    }

        Collection<String> installations,
        InstallationLocation currentJvm = null,
        Function<String, String> getVersion = { it },
        Function<String, String> getVendor = { "" }
    ) {
        def detector = newJvmMetadataDetector(getVersion, getVendor)
        def registry = createInstallationRegistry(installations, detector)
        def currentJvmPath = currentJvm?.location ?: Jvm.current().javaHome

        return new VersionAwareCompiler<LinkerSpec>(swiftLinker, new DefaultCompilerVersion("swiftc", swiftcMetaData.getVendor(), swiftcMetaData.getVersion()));
    }

    protected Compiler<SwiftCompileSpec> createSwiftCompiler() {

@Immutable
public interface XmlReaderRequest {

    @Nullable
    Path getPath();

    @Nullable
    URL getURL();

    @Nullable
    InputStream getInputStream();

    @Nullable
    Reader getReader();

    @Nullable
    Transformer getTransformer();

    boolean isStrict();

    @Nullable
    String getModelId();

    @Nullable
    String getLocation();

            @Override
            void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
                assert request.getHeader("X-Gradle-Version") == GradleVersion.current().version
                chain.doFilter(request, response)
            }

            @Override
            void destroy() {}

                @Override
                boolean isSatisfiedBy(JvmInstallationMetadata install) {
                    if (version.hasProperty("vendor")) {
                        if(install.getVendor().getKnownVendor() != version.vendor) {
                            return false
                        }
                    }
                    return install.languageVersion == version.version
                }

    /**
     * Returns the type of the compiler.
     */
    @Input
    String getType();

    /**
     * Returns the vendor of the compiler.
     */
    @Input
    String getVendor();

    /**
     * Returns the version of the compiler.
     */
    @Input
    String getVersion();

    Class<? extends Throwable> getExceptionType();

    /**
     * A failure summary usually containing the type of the original exception and its message.
     *
     * @see Throwable#toString()
     */
    String getHeader();

    /**
     * Stack frames from the original exception.
     */
    List<StackTraceElement> getStackTrace();

    /**
     * Relevance of a given stack frame in the {@link #getStackTrace() stack trace}.

        this.type = type;
        this.vendor = vendor;
        this.version = version;
    }

    @Override
    public String getType() {
        return type;
    }

    @Override
    public String getVendor() {
        return vendor;
    }

    @Override
    public String getVersion() {
        return version.toString();
    }

    @Override
    public String toString() {