Code Review Request: 7197662: (prefs) java/util/prefs/ fails by timeout or by "couldn't get file lock"

Kurchi Hazra kurchi.subhra.hazra at
Fri Nov 30 02:04:42 UTC 2012

Apologies for the extreme delay. I added the bug id, and checked that 
setting the userRoot=. will result in the JTwork/scratch
directory being used to store the preferences. I think we had concluded 
that othervm is the correct choice for running a test
when setting the -Djava.util.prefs.userRoot property.

Updated webrev:

Note that the -Djava.util.prefs.userRoot property is only honored by 
Linux/Solaris implementations. Windows and Mac OS
will continue to use the user's home directory, or the default location 
that the respective platform uses to store


On 9/21/12 11:49 AM, Kurchi Hazra wrote:
> On 21.09.2012 02:03, Chris Hegarty wrote:
>> On 21/09/12 01:12, Dan Xu wrote:
>>> Kurchi,
>>> Can you append bug number 7197662 to @bug field in each test so that it
>>> is easy to check its history?
>> Yes, this is always a good idea.
> Sure, I missed adding the bug id.
>>> For your changes, I wonder why you choose to run these tests in othervm
>>> mode. Thanks!
>> The tests need to run in othervm mode as they are now setting a 
>> system property. We don't want this system property to inadvertently 
>> effect other tests, if a batch are being run in samevm or agentvm.
> Right, I looked at some examples in jdk/src/test of tests which set 
> system properties, and this is what they were doing.
> also hints toward the same.
>> Assuming that '.' means the scratch directory when jtreg is running, 
>> then I'm fine with these changes.
> That is a good question, and while I assumed it will, the Mac code is 
> clearly doing other things. I am afraid I need to investigate this
> for all platforms and see what others do, and whether we need to make 
> additional changes in the Mac source code to correct its
> behavior. I will get back with a newer webrev soon.
> Thanks!
> - Kurchi
>> -Chris.
>>> -Dan
>>> On Thu 20 Sep 2012 02:22:15 PM PDT, Kurchi Hazra wrote:
>>>> Hi,
>>>> The tests in java/util/prefs creates new nodes under the user's home
>>>> directory.
>>>> This causes the tests to start out with pre-existing preferences and
>>>> sometimes
>>>> leads to interference between the tests. This fix is to change the
>>>> userRoot
>>>> property for each of these tests so these tests create nodes only
>>>> under the
>>>> current directory.
>>>> Bug:
>>>> Webrev:
>>>> Thanks,
>>>>  - Kurchi

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