RFR: 8276661: (fs) UserDefinedFileAttributeView no longer works with long path (win) [v4]

[Brian Burkhalter]

On Wed, 1 Dec 2021 18:30:01 GMT, Alan Bateman <alanb at openjdk.org> wrote:

>> Brian Burkhalter has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   8276661: addPrefixIfNeeded calls addPrefix; remove UNC test
>
> src/java.base/windows/classes/sun/nio/fs/WindowsPath.java line 187:
> 
>> 185:         // short absolute paths can be used directly
>> 186:         if (isAbsolute() && path.length() <= MAX_PATH)
>> 187:             return forceLongPrefix ? addPrefix(path) : path;
> 
> Brian and I discussed this issue today and the reason this version didn't work is that it prepends the long path prefix without first using GetFullPathName to resolve the "." and ".." elements in the name. Brian is working on a new version now that will fix this issue and we should end up with a cleaner solution.

Committed.

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PR: https://git.openjdk.java.net/jdk/pull/6435