TCK jnlp test jnlp_file/appletDesc/index.html#misc fails with NPE starting 6u12 b01

TCK JNLP : 6.0 b03
J2SE : FAIL - jdk 6u12 b01, PASS 6u11 b03
Platform[s] : FAIL - any
switch/Mode : FAIL - default

The test fails before execution of the test class started. In the console window we could see a stack trace
##TCKHarnesRun##:1227779924968:138093:Thread[Java Web Start Main Thread,5,javawsSecurityThreadGroup]:Java Started
##TCKHarnesRun##:1227779933032:138093:Thread[javawsApplicationMain,5,javawsApplicationThreadGroup]:JNLP Launching
java.lang.NullPointerException
        at com.sun.deploy.net.DownloadEngine.getResourceCacheEntry(DownloadEngine.java:1519)
        at com.sun.deploy.net.DownloadEngine.getCachedFile(DownloadEngine.java:566)
        at com.sun.deploy.net.DownloadEngine.getCachedFile(DownloadEngine.java:548)
        at com.sun.deploy.net.DownloadEngine.getCachedFile(DownloadEngine.java:543)
        at com.sun.javaws.Launcher.executeApplet(Launcher.java:1226)
        at com.sun.javaws.Launcher.executeMainClass(Launcher.java:1139)
        at com.sun.javaws.Launcher.doLaunchApp(Launcher.java:959)
        at com.sun.javaws.Launcher.run(Launcher.java:111)
        at java.lang.Thread.run(Thread.java:619)

Possible reason - incorrect procession of <applet-desc> tag in jnlp file, since this is the only test with this tag. Attempt to start other appet with jnlp file also failed.

Steps to reproduce the test failure:
1. Install JDK 1.6.0_12 b01 (for example to /export/jdk/jdk1.6.0_12)
2. Enable tracing and logging in Java Control Panel. Enable Show console option.
2. Run command /export/jdk/jdk1.6.0_12/bin/javaws http://stt-13/results/1.6.0_12/b01_j4b/TCK-jnlp/jnlp-x86-OpenSolaris/rerun/test.jnlp
Files needed to run the test are accesible from stt-13.russia from /set/stt/newroot/results/1.6.0_12/b01_j4b/TCK-jnlp/jnlp-x86-OpenSolaris/rerun (or from the link above)
Test suite is installed in /set/stt/tck_promotions/jnlp_tck/6.0/beta/b03/binaries/jnlp_tck60 (accessible also from stt-13.russia)

*.jnlp file could be reduced and ordinary clock applet demo could be used to reproduce problem.
Run command /export/jdk/jdk1.6.0_12/bin/javaws http://stt-13/results/1.6.0_12/b01_j4b/TCK-jnlp/jnlp-x86-OpenSolaris/rerun2/test.jnlp
(file are at /set/stt/newroot/results/1.6.0_12/b01_j4b/TCK-jnlp/jnlp-x86-OpenSolaris/rerun2)

jnlp file:
<?xml version="1.0" encoding="UTF-8"?>
<!-- Copyright 2002 Sun Microsystems, Inc. All rights reserved.-->
<!-- SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.-->
<jnlp spec="0.2+"
  codebase="http://stt-13/results/1.6.0_12/b01_j4b/TCK-jnlp/jnlp-x86-OpenSolaris/rerun2/">
  <information>
    <title>Test</title>
    <vendor>Sun Microsystems, Inc.</vendor>
  </information>

  <resources>
    <j2se version="1.6"/>
    <jar href="applet.jar"/>
    <jar href="classes.jar"/>
  </resources>
  <applet-desc
main-class="Clock"
name="AppletTest"
width="100"
height="300">
  </applet-desc>

</jnlp>

With JDK 6u11 will see an applet demo and with 6u12 will see a stack trace.