JNLP app download hangs when BASIC authenticating through HTTPS tunnel.

FULL PRODUCT VERSION :
Java WebStart is from Java 6.0 beta b59g. JNLP app runs on installed JRE Java 1.4.2_03.

ADDITIONAL OS VERSION INFORMATION :
Microsoft Windows 2000 [Version 5.00.2195]

A DESCRIPTION OF THE PROBLEM :
When a JNLP URL is protected by basic authentication and the URL is an HTTPS URL, WebStart hangs when trying to launch the application. Stack trace below.

This worked in Java 1.4.2 WebStart and Java 1.5 WebStart.

WebStart log shows a stack trace:

<?xml version="1.0" encoding="windows-1252" standalone="no"?>
<!DOCTYPE log SYSTEM "logger.dtd">
<log>
<record>
  <date>2006-06-12T12:34:41</date>
  <millis>1150133681843</millis>
  <sequence>0</sequence>
  <logger>com.sun.deploy</logger>
  <level>FINE</level>
  <class>com.sun.deploy.util.LoggerTraceListener</class>
  <method>print</method>
  <thread>10</thread>
  <message>java.lang.NoSuchMethodError: java.lang.String.contains(Ljava/lang/CharSequence;)Z
</message>
</record>
<record>
  <date>2006-06-12T12:34:41</date>
  <millis>1150133681859</millis>
  <sequence>1</sequence>
  <logger>com.sun.deploy</logger>
  <level>FINE</level>
  <class>com.sun.deploy.util.LoggerTraceListener</class>
  <method>print</method>
  <thread>10</thread>
  <message> at com.sun.deploy.security.CredentialInfo.setUserName(Unknown Source)
</message>
</record>
<record>
  <date>2006-06-12T12:34:41</date>
  <millis>1150133681859</millis>
  <sequence>2</sequence>
  <logger>com.sun.deploy</logger>
  <level>FINE</level>
  <class>com.sun.deploy.util.LoggerTraceListener</class>
  <method>print</method>
  <thread>10</thread>
  <message> at com.sun.deploy.ui.UIFactory$4.execute(Unknown Source)
</message>
</record>
<record>
  <date>2006-06-12T12:34:41</date>
  <millis>1150133681859</millis>
  <sequence>3</sequence>
  <logger>com.sun.deploy</logger>
  <level>FINE</level>
  <class>com.sun.deploy.util.LoggerTraceListener</class>
  <method>print</method>
  <thread>10</thread>
  <message> at com.sun.javaws.ui.JavawsSysRun.delegate(Unknown Source)
</message>
</record>
<record>
  <date>2006-06-12T12:34:41</date>
  <millis>1150133681859</millis>
  <sequence>4</sequence>
  <logger>com.sun.deploy</logger>
  <level>FINE</level>
  <class>com.sun.deploy.util.LoggerTraceListener</class>
  <method>print</method>
  <thread>10</thread>
  <message> at com.sun.deploy.util.DeploySysRun.execute(Unknown Source)
</message>
</record>
<record>
  <date>2006-06-12T12:34:41</date>
  <millis>1150133681859</millis>
  <sequence>5</sequence>
  <logger>com.sun.deploy</logger>
  <level>FINE</level>
  <class>com.sun.deploy.util.LoggerTraceListener</class>
  <method>print</method>
  <thread>10</thread>
  <message> at com.sun.deploy.util.DeploySysRun$1.run(Unknown Source)
</message>
</record>
<record>
  <date>2006-06-12T12:34:41</date>
  <millis>1150133681859</millis>
  <sequence>6</sequence>
  <logger>com.sun.deploy</logger>
  <level>FINE</level>
  <class>com.sun.deploy.util.LoggerTraceListener</class>
  <method>print</method>
  <thread>10</thread>
  <message> at java.security.AccessController.doPrivileged(Native Method)
</message>
</record>
<record>
  <date>2006-06-12T12:34:41</date>
  <millis>1150133681859</millis>
  <sequence>7</sequence>
  <logger>com.sun.deploy</logger>
  <level>FINE</level>
  <class>com.sun.deploy.util.LoggerTraceListener</class>
  <method>print</method>
  <thread>10</thread>
  <message> at com.sun.deploy.util.DeploySysRun.executePrivileged(Unknown Source)
</message>
</record>
<record>
  <date>2006-06-12T12:34:41</date>
  <millis>1150133681859</millis>
  <sequence>8</sequence>
  <logger>com.sun.deploy</logger>
  <level>FINE</level>
  <class>com.sun.deploy.util.LoggerTraceListener</class>
  <method>print</method>
  <thread>10</thread>
  <message> at com.sun.deploy.ui.UIFactory.showPasswordDialog(Unknown Source)
</message>
</record>
<record>
  <date>2006-06-12T12:34:41</date>
  <millis>1150133681859</millis>
  <sequence>9</sequence>
  <logger>com.sun.deploy</logger>
  <level>FINE</level>
  <class>com.sun.deploy.util.LoggerTraceListener</class>
  <method>print</method>
  <thread>10</thread>
  <message> at com.sun.deploy.security.DeployAuthenticator.openDialog(Unknown Source)
</message>
</record>
<record>
  <date>2006-06-12T12:34:41</date>
  <millis>1150133681859</millis>
  <sequence>10</sequence>
  <logger>com.sun.deploy</logger>
  <level>FINE</level>
  <class>com.sun.deploy.util.LoggerTraceListener</class>
  <method>print</method>
  <thread>10</thread>
  <message> at com.sun.deploy.security.DeployAuthenticator.getPasswordAuthentication(Unknown Source)
</message>
</record>
<record>
  <date>2006-06-12T12:34:41</date>
  <millis>1150133681859</millis>
  <sequence>11</sequence>
  <logger>com.sun.deploy</logger>
  <level>FINE</level>
  <class>com.sun.deploy.util.LoggerTraceListener</class>
  <method>print</method>
  <thread>10</thread>
  <message> at com.sun.javaws.JAuthenticator.getPasswordAuthentication(Unknown Source)
</message>
</record>
<record>
  <date>2006-06-12T12:34:41</date>
  <millis>1150133681859</millis>
  <sequence>12</sequence>
  <logger>com.sun.deploy</logger>
  <level>FINE</level>
  <class>com.sun.deploy.util.LoggerTraceListener</class>
  <method>print</method>
  <thread>10</thread>
  <message> at java.net.Authenticator.requestPasswordAuthentication(Unknown Source)

...

Squid log shows that a connection to the proxy was made by WebStart before the BASIC Auth dialog is popped up.

131.124.0.31 - - [12/Jun/2006:12:23:45 -0500] "CONNECT foo.bar.com:443 HTTP/1.1" 200 4621 TCP_MISS:DIRECT [Accept-Encoding: gzip\r\nUser-Agent: JNLP/6.0 javaws/1.6.0-beta (beta-b59g) Java/1.4.2_03\r\nUA-Java-Version: 1.4.2_03\r\nHost: cmac2.verizon.com\r\nAccept: text/html, image/gif, image/jpeg, *; q=.2, */*; q=.2\r\n] []

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
In the browser, we click on the JNLP link. The link is an HTTPS URL, and the URL is protected by basic authentication. Java WebStart correctly puts up the basic authentication dialog. However, when we enter the user ID and password, the dialog just goes away and the JAR files are not downloaded. See the stack trace above.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Expect application to launch.
ACTUAL -
Application download dialog does not come up. The application fails to launch.

REPRODUCIBILITY :
This bug can be reproduced always.

CUSTOMER SUBMITTED WORKAROUND :
None found yet.

Release Regression From : 5.0
The above release value was the last known release where this
bug was not reproducible. Since then there has been a regression.

Release Regression From : 5.0
The above release value was the last known release where this
bug was not reproducible. Since then there has been a regression.