jshell depends on some windows registry?

[Roger Riggs]

Hi Robert,

Is there any alternative to the Preferences API.  What state is stored 
in it?

It would be better not to have too many dependencies in JShell.

Thanks, Roger


On 5/4/2016 12:48 AM, Robert Field wrote:
> Hi Max,
>
> There is no concept of "installing" jshell beyond having JDK9 installed.
>
> The jshell tool uses the Java Preferences API, which seems to be 
> failing in this case -- the Preferences API uses platform specific 
> functionality to save/restore preferences.
>
> I don't know the specifics of how it works on different platforms -- 
> anybody have an idea what is going on here?  We may need to file a 
> Preferences bug.
>
> Just to be sure everything is lined up right, can you do:
>
>     java -fullversion
>
>     jshell -fullversion
>
> Thanks,
> Robert
>
>
> On 05/03/2016 09:32 PM, Weijun Wang wrote:
>> I copied the images to my own computer (without running any 
>> installer) and running jshell in jdk9/b116 shows this
>>
>>  $ jshell
>> May 04, 2016 12:30:25 PM java.util.prefs.WindowsPreferences <init>
>> WARNING: Could not open/create prefs root node 
>> Software\JavaSoft\Prefs at root 0x80000002. Windows 
>> RegCreateKeyEx(...) returned error code 5.
>> |  Welcome to JShell -- Version 9-ea
>> |  For an introduction type: /help intro
>>
>> jshell>
>>
>> Then if I enter anything, it just hangs forever.
>>
>> Must I install it? What if I am building my own jdk?
>>
>> Thanks
>> Max
>