Code Review Request: 7168172: (fs) Files.isReadable slow on Windows (original) (raw)
Kurchi Hazra kurchi.subhra.hazra at oracle.com
Wed Aug 22 11:38:56 PDT 2012
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Hi,
Files.isReadable() is slow on Windows, since it involves reading the DACL and computing the effective access to the file. [1] However, it is faster to simply open the file being checked and close it. In the case of a directory then, a DirectoryStream can be opened and closed to check the same.
Bug: http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=7168172 Webrev: http://cr.openjdk.java.net/~khazra/7168172/webrev.00/
Thanks to Alan for helping out a lot with this fix.
- Kurchi
[1] http://mail.openjdk.java.net/pipermail/nio-dev/2012-May/001667.html
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