[PATCH] Review Request for 8009258: TEST_BUG: java/io/pathNames/GeneralWin32.java fails intermittently

[Dan Xu]

Hi Eric,

Thanks for fixing the test failures. I recently reviewed your changes. 
And I like your idea to add a base dir to restrict the test only 
touching files/directories that are created by itself to avoid the 
interferences from the OS or other test activities.

And in Line 341 of General.java, I notice you make the code return if it 
tries to test baseDir or its ascendant directories, which reduces the 
test coverage. Since GeneralWin32.java knows its max tree depth, I think 
you can make the baseDir deep enough in the prepared directory structure 
so that the test can still run inside the testing directories even if it 
visits the baseDir's ascendant directories. One idea is to make the max 
depth as a parameter of initTestData(), and this method can 
intelligently return an appropriate baseDir basing on it.

After the above change, you can move the baseDir and userDir back to 
GeneralWin32.java to make the two classes loosely coupled.

In the changes, the usages of NIO classes are not necessary. The test is 
against java.io packages, and it is better to keep it clean in case it 
might be used to test old jdk version which does not have NIO.

Before the test ends, it is better to clean the testing files and 
directories which are created at the beginning. Thanks!

-Dan

On 03/12/2013 11:28 PM, Eric Wang wrote:
> Hi,
>
> Please review the code change, I have updated the test to make sure 
> test only access files and directories created by itself.
> http://cr.openjdk.java.net/~ewang/8009258/webrev.01/
>
> Here is the execution result:
> http://cr.openjdk.java.net/~ewang/8009258/GeneralWin32.jtr
>
> Thanks,
> Eric
> On 2013/3/5 1:39, Alan Bateman wrote:
>> On 04/03/2013 17:32, Eric Wang wrote:
>>> Hi,
>>>
>>> Please help to review fix below for bug 8009258 
>>> <https://jbs.oracle.com/bugs/browse/JDK-8009258>, 
>>> TEST_BUG:java/io/pathNames/GeneralWin32.java fails intermittently.
>>> http://cr.openjdk.java.net/~ewang/8009258/webrev.00/
>>>
>>> The File.canRead() method should not be used to check read 
>>> permission of a directory.
>>>
>>> Thanks,
>>> Eric
>> I wonder if it would be better to change this test so that it doesn't 
>> even attempt to poke around in these directories. I suggest this 
>> because there may be other activity going on at the same time. See 
>> also 8004096 where the test is running in agentvm mode and is 
>> straying into the directory used by another agent VM.
>>
>> -Alan
>