找不到HTMLUnit临时文件

Question

我正在使用此代码从URL读取，代码正在给我这个错误：

Exception in thread "main" java.io.FileNotFoundException: C:\Work\Projects\WikipediaTemplate\codes\Sweble\WikipediaTemplateGenerator\tempFiles\htmlunit2229583992082609160.tmp (The system cannot find the file specified)
    at java.io.FileInputStream.open(Native Method)
    at java.io.FileInputStream.(FileInputStream.java:138)
    at com.gargoylesoftware.htmlunit.DownloadedContent$OnFile.getInputStream(DownloadedContent.java:81)
    at com.gargoylesoftware.htmlunit.WebResponseData.getStream(WebResponseData.java:91)
    at com.gargoylesoftware.htmlunit.WebResponseData.getInputStream(WebResponseData.java:156)
    at com.gargoylesoftware.htmlunit.WebResponse.getContentAsStream(WebResponse.java:241)
    at com.gargoylesoftware.htmlunit.util.WebResponseWrapper.getContentAsStream(WebResponseWrapper.java:58)
    at com.gargoylesoftware.htmlunit.DefaultPageCreator.createPage(DefaultPageCreator.java:150)
    at com.gargoylesoftware.htmlunit.WebClient.loadWebResponseInto(WebClient.java:468)
    at com.gargoylesoftware.htmlunit.WebClient.getPage(WebClient.java:342)
    at com.gargoylesoftware.htmlunit.WebClient.getPage(WebClient.java:407)
    at com.gargoylesoftware.htmlunit.WebClient.getPage(WebClient.java:392)
    at etc.TestWebClient.main(TestWebClient.java:64)

我正在使用HTMLUnit 2.15。

代码是：

public static void main(String[] args) throws FailingHttpStatusCodeException, MalformedURLException, IOException {
    File file=new File("tempFiles");
    file.mkdir();
    System.setProperty("java.io.tmpdir", file.getCanonicalPath());;
    String url="http://www.nhs.uk/conditions/Norovirus/Pages/Introduction.aspx";

    WebClient webClient = new WebClient(BrowserVersion.CHROME);
    webClient.getOptions().setJavaScriptEnabled(false);
    webClient.getOptions().setThrowExceptionOnFailingStatusCode(false);
    webClient.getOptions().setThrowExceptionOnScriptError(false);

    webClient.getOptions().setTimeout(120000);
    webClient.getOptions().setUseInsecureSSL(true);
    List<String> urlVisited=new ArrayList<String>();
    System.err.println("URL Link:"+url);

    int status =0;
    status=webClient.getPage(url).getWebResponse()
            .getStatusCode();

    System.out.println("Web response status:"+status);
    //webClient.getOptions().setJavaScriptEnabled(false);
    String directory="";

    LinkOption options = null;
    //Files.getOwner(file.toPath(), options);
    System.out.println(file.isDirectory()+"/"+file.canWrite());
   // boolean bval = file.setWritable(true,false);
    String currentDirectory = System.getProperty("user.dir");
    System.out.println(currentDirectory);
    //System.out.println(bval);
    Page rawpage = webClient.getPage(url);
}