*
     * @param buf buffer containing data to send
     * @param off offset in the buffer
     * @param length length of data to send
     * @throws IOException if an I/O error occurs
     */
    void send(byte[] buf, int off, int length) throws IOException;

    /**
     * Performs a transaction on the pipe.
     *
     * @param buf the buffer containing the transaction data

        return new EncryptContext(
                invokerRequest, (EncryptOptions) invokerRequest.options().orElse(null));
    }

    @Override
    protected void lookup(EncryptContext context) throws Exception {
        if (context.goals == null) {
            super.lookup(context);
            context.goals = context.lookup.lookupMap(Goal.class);
        }
    }

    @Override

        return new UpgradeContext(
                invokerRequest, (UpgradeOptions) invokerRequest.options().orElse(null));
    }

    @Override
    protected void lookup(UpgradeContext context) throws Exception {
        if (context.goals == null) {
            super.lookup(context);
            context.goals = context.lookup.lookupMap(Goal.class);
        }
    }

    @Override

                : new MavenToolchainsStaxReader();
    }

    /**
     * Sets the state of the "add default entities" flag.
     *
     * @param addDefaultEntities a addDefaultEntities object.
     */
    public void setAddDefaultEntities(boolean addDefaultEntities) {
        delegate.setAddDefaultEntities(addDefaultEntities);
    }

    /**
     * Returns the state of the "add default entities" flag.
     *
     * @return boolean

            path = defaultArtifact.getArtifact().getPath();
        }
        return Optional.ofNullable(path);
    }

    @Override
    public void setPath(@Nonnull ProducedArtifact artifact, Path path) {
        String id = id(requireNonNull(artifact, "artifact cannot be null"));
        if (session.getMavenSession().getAllProjects() != null) {

                .computeIfAbsent(
                        PomInlinerTransformer.class.getName() + ".needsInlining", ConcurrentHashMap::newKeySet);
    }

    @Override
    public void injectTransformedArtifacts(RepositorySystemSession session, MavenProject project) throws IOException {
        if (!Features.consumerPom(session.getConfigProperties())) {
            try {

        @Override
        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()) {

            return (T) componentHolder.get();
        }
        return null;
    }

    @Override
    public boolean available() {
        return available;
    }

    @Override
    public void destroy() {
        available = false;
        for (final ComponentHolder<?> componentHolder : singletonMap.values()) {
            try {
                componentHolder.destroy();

     *
     * @param pathname
     *            The path to the file.
     * @param bytes
     *            The byte array to write.
     */
    public static void writeBytes(final String pathname, final byte[] bytes) {
        try (FileOutputStream fos = OutputStreamUtil.create(new File(pathname))) {
            ChannelUtil.write(fos.getChannel(), ByteBuffer.wrap(bytes));

     * allows specification of the factory used in creating underlying
     * stream handlers.  This can be called once per JVM instance.
     *
     * @param factory The URL stream handler factory.
     */
    public static void setURLStreamHandlerFactory(final URLStreamHandlerFactory factory) {
        synchronized (PROTOCOL_HANDLERS) {
            if (Handler.factory != null) {