Java 7u13 win8 shortcut icons still appear to be broken

Question

As Woodiw1563768 pointed out in July of 2012, the Java Web Start (JAWS) desktop shortcut icon on Windows 8 appear to be broken[0]. When you provide a custom icon the shortcut appears as a blank paper instead of as your icon or the default web start icon. This is still happening in February of 2013.
Windows 8 is "officially supported with the release of Java 7 Update 10" [1] and bug 2230144 claims this issue should be fixed as of Java 7 Update 12 (7u12) [2], but when I tested with the latest version from java.com, 1.7.0_13 (7u13) my icons are still broken for applications which work with the same version of Java on earlier versions of Windows. Can anyone else confirm this? It would be handy to have a public JNLP file that normally installs icons that we can all test against. The one in the bug report appears to be missing or only internal.
As noted in bug 7182795 [3], the issue appears to be some Windows security conflict with the use of LocalLow as the cache directory where JAWS icons are stored.
I am having trouble figuring out how to comment on bug 2230144 to indicate that it still appears to be broken.
Is there any way to work around this bug? (Besides not using web start or not relying on the desktop shortcuts.)
I have tested setting the icon path manually, but every time the JNLP file is updated, and sometimes on every launch, the shortcut is deleted and re-created, reverting back to the broken icon.
0 Desktop shortcut icon on Windows 8
1 http://www.java.com/en/download/faq/win8_faq.xml
2 http://bugs.sun.com/bugdatabase/view_bug.do;jsessionid=97a76071db9b35ebcac83223b036?bug_id=2230144#
3 http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=7182795
Edited by: 836060 on Feb 12, 2013 2:51 PM
Edited by: 836060 on Feb 19, 2013 11:31 AM, added "icons" to subject

Answer 1

Problem
When you try to start a launch-in-context task, the following message is displayed:Windows cannot open this file:
Suggested action
The .jnlp extension might not be mapped to the Java™ Web Start executable file javaws.exe.
To map the .jnlp extension to the Java Web Start executable file, complete the following steps and try the task again:1.In Windows® Explorer, select Tools > Folder Options from the menu bar.
2.Click the File Types page, and locate the JNLP extension in the Registered file types list.
If you cannot locate the JNLP extension, do the following:
a.Click New.
b.In the Create New Extension window, specify jnlp in the File Extension field and click OK.
3.In the Registered file types list, select JNLP and click Change.
4.In the Open With window, click Browse..., select the javaws.exe under a JRE that you have installed on your browser system, and click Open.
5.In the Open With window, click OK.
6.In the Folder Options window, click OK.
7.Close Windows Explorer.