Erro ao exibir imagem

Eu estou colocando as imagens do livros neste direotório: "C:\uploads\livros". No entanto, na pagina lista.xhtml que é pra exibir os cadastro dos livros, surgir o erro no console do tipo: Caused by: java.io.FileNotFoundException: \uploads (Acesso negado). Aparentemente, a imagem vai para o diretório especificado, mas não é exibida na lista de livros cadastrados. Segue as classes

package br.project.livraria.servlets;

import java.io.IOException;
import java.net.FileNameMap;
import java.net.URLConnection;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import br.project.livraria.infra.FileSaver;

@WebServlet("/file/*")
public class FileServlet extends HttpServlet {

    private static final long serialVersionUID = 1L;

    @Override
    protected void service(HttpServletRequest req, HttpServletResponse res) 
                throws ServletException, IOException {
        String path = req.getRequestURI().split("/file")[1];

        Path source = Paths.get(FileSaver.SERVER_PATH + "/" + path);
        FileNameMap fileNameMap = URLConnection.getFileNameMap();
        String contentType = fileNameMap.getContentTypeFor("file:"+source);

        res.reset();
        res.setContentType(contentType);
        res.setHeader("Content-Length", String.valueOf(Files.size(source)));
        res.setHeader("Content-Disposition", 
                "filename=\""+source.getFileName().toString() + "\"");
        FileSaver.transfer(source, res.getOutputStream());
    }

}

package br.project.livraria.infra;

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.OutputStream;
import java.nio.ByteBuffer;
import java.nio.channels.Channels;
import java.nio.channels.ReadableByteChannel;
import java.nio.channels.WritableByteChannel;
import java.nio.file.Path;

import javax.servlet.http.Part;

public class FileSaver {
    public static final String SERVER_PATH = "/uploads";

    public String write(Part arquivo, String path) {
        String relativePath = path + "/" + arquivo.getSubmittedFileName();
        try {
            arquivo.write(SERVER_PATH + "/" + relativePath);

            return relativePath;
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
    }

    public static void transfer(Path source, OutputStream outputStream) {
        try {
            FileInputStream input = new FileInputStream(source.toFile());
            try (ReadableByteChannel inputChannel = Channels.newChannel(input);
                    WritableByteChannel outputChannel = Channels.newChannel(outputStream)) {
                ByteBuffer buffer = ByteBuffer.allocateDirect(1024 * 10);

                while (inputChannel.read(buffer) != -1) {
                    buffer.flip();
                    outputChannel.write(buffer);
                    buffer.clear();
                }
            } catch (IOException e) {
                throw new RuntimeException(e);
            }
        } catch (FileNotFoundException e) {
            throw new RuntimeException(e);
        }
    }

Erro apresentado

11:54:41,188 ERROR [io.undertow.request] (default task-13) UT005023: Exception handling request to /Livraria/file/: java.lang.RuntimeException: java.io.FileNotFoundException: \uploads (Acesso negado)
    at br.project.livraria.infra.FileSaver.transfer(FileSaver.java:45)
    at br.project.livraria.servlets.FileServlet.service(FileServlet.java:37)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
    at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:85)
    at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62)
    at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36)
    at org.wildfly.extension.undertow.security.SecurityContextAssociationHandler.handleRequest(SecurityContextAssociationHandler.java:78)
    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
    at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:131)
    at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57)
    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
    at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46)
    at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64)
    at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:60)
    at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:77)
    at io.undertow.security.handlers.NotificationReceiverHandler.handleRequest(NotificationReceiverHandler.java:50)
    at io.undertow.security.handlers.AbstractSecurityContextAssociationHandler.handleRequest(AbstractSecurityContextAssociationHandler.java:43)
    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
    at org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61)
    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
    at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:292)
    at io.undertow.servlet.handlers.ServletInitialHandler.access$100(ServletInitialHandler.java:81)
    at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:138)
    at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:135)
    at io.undertow.servlet.core.ServletRequestContextThreadSetupAction$1.call(ServletRequestContextThreadSetupAction.java:48)
    at io.undertow.servlet.core.ContextClassLoaderSetupAction$1.call(ContextClassLoaderSetupAction.java:43)
    at io.undertow.servlet.api.LegacyThreadSetupActionWrapper$1.call(LegacyThreadSetupActionWrapper.java:44)
    at io.undertow.servlet.api.LegacyThreadSetupActionWrapper$1.call(LegacyThreadSetupActionWrapper.java:44)
    at io.undertow.servlet.api.LegacyThreadSetupActionWrapper$1.call(LegacyThreadSetupActionWrapper.java:44)
    at io.undertow.servlet.api.LegacyThreadSetupActionWrapper$1.call(LegacyThreadSetupActionWrapper.java:44)
    at io.undertow.servlet.api.LegacyThreadSetupActionWrapper$1.call(LegacyThreadSetupActionWrapper.java:44)
    at io.undertow.servlet.api.LegacyThreadSetupActionWrapper$1.call(LegacyThreadSetupActionWrapper.java:44)
    at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:272)
    at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:81)
    at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:104)
    at io.undertow.server.Connectors.executeRootHandler(Connectors.java:202)
    at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:805)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)
Caused by: java.io.FileNotFoundException: \uploads (Acesso negado)
    at java.io.FileInputStream.open0(Native Method)
    at java.io.FileInputStream.open(FileInputStream.java:195)
    at java.io.FileInputStream.<init>(FileInputStream.java:138)
    at br.project.livraria.infra.FileSaver.transfer(FileSaver.java:31)
    ... 40 more