[jcifs] Java Webstart Problem

Adam Augusta roxton at gmail.com
Mon Apr 23 18:50:06 GMT 2007

I'm using JCIFS 1.2.13 so that my client can use HTTP NTLM authentication to
download a PDF from a MS Reporting Services server.  The server's name is
"reportserver".  The client is running on a FreeBSD 6.0 box with JVM

When I run the short program below directly using "java", it works without a
hitch.  When I deploy it with Java WebStart, though, it behaves as though I
weren't even using JCIFS.

I suspect WebStart is setting the default Authenticator, and since it can only
be set once, "jcifs.Config.registerSmbURLHandler()" does nothing.  Does that
sound right?  Can anyone suggest a workaround?


package org.roxton;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;

public class DownloadTest {
    public static void main(String[] args) {
        URL url;
        String osName = System.getProperty("os.name");
        if (osName == null || !osName.startsWith("Windows")) {
            jcifs.Config.setProperty("jcifs.smb.client.domain", "MYDOMAIN");
            jcifs.Config.setProperty("jcifs.smb.client.username", "MYUSERNAME");
            jcifs.Config.setProperty("jcifs.smb.client.password", "MYPASSWORD");
        byte[] pdfByteArray = null;
        InputStream is;
        ByteArrayOutputStream os;
        try {
            url = new URL(args[0]);
            is = url.openStream();
            os = new ByteArrayOutputStream();

            // Download buffer
            byte[] buffer = new byte[4096];

            // Download the PDF document
            int read;
            while ((read = is.read(buffer)) != -1) {
                os.write(buffer, 0, read);
            // Copy output stream to byte array
            pdfByteArray = os.toByteArray();

            // Close streams

        } catch (IOException e) {
            throw new RuntimeException("FAILURE", e);
-----JNLP (WebStart) File-----

<jnlp codebase="file:///usr/home/roxton">
      <title>Download Test</title> 
      <vendor>Roxton Technologies</vendor>
      <homepage href="http://www.mysite.com"/>
      <icon href="print.jpg"/>


      <j2se version="1.5+" href="http://java.sun.com/products/autodl/j2se"/>
      <jar href="DownloadAuthURL.jar" main="true" download="eager"/>
      <jar href="jcifs-1.2.13.jar" download="eager"/>

   <application-desc main-class="org.roxton.DownloadTest">


-----Exception Thrown-----
java.lang.RuntimeException: FAILURE
at org.roxton.DownloadTest.main(DownloadTest.java:58)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
Caused by: java.io.IOException: Server returned HTTP response code: 401 for URL:
at java.net.URL.openStream(URL.java:1007)
at org.roxton.DownloadTest.main(DownloadTest.java:38)

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