So is this an actual bug in the Java API? That IBM link seems to suggest 
that: "The error occurs because java.util.prefs.WindowsPreferences is 
trying to save information in HKEY_LOCAL_MACHINE\Software\JavaSoft\Prefs 
instead of under HKEY_CURRENT_USER\Software\JavaSoft\Prefs."
 
On Saturday, June 15, 2013 4:01:22 PM UTC-4, John V Denley wrote:
>
> Just had the same problem myself, and found that to fix it I had to do 
> what you suggested, but I also had to manually create a "Prefs" key under 
> JavaSoft too, as mentioned here:
> http://www-01.ibm.com/support/docview.wss?uid=swg21496098
>
> On Friday, 14 June 2013 02:02:26 UTC+1, QingFeng Du wrote:
>>
>> well well, 4 years later, I came across the same problem.
>> here's my solution:
>> open regedit.exe ( really hate Microsoft and their regedit.reg).
>> change the permission of key: 
>> HKEY_LOCAL_MACHINE\SOFTWARE\JavaSoft.....Right click the icon, then change 
>> the permission to full operation.
>>
>> On Saturday, June 27, 2009 3:03:20 PM UTC-4, Farinha wrote:
>>>
>>> The subject has it all. 
>>>
>>> Eclipse 3.4.2 
>>> GWT Eclipse Plugin 
>>> Windows 7 
>>>
>>> Thanks in advance for the help. 
>>>
>>

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