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Posted to dev@ant.apache.org by bu...@apache.org on 2007/08/04 17:38:35 UTC

DO NOT REPLY [Bug 43032] New: - jar reports warning class modified in future on Windows

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           Summary: jar reports warning class modified in future on Windows
           Product: Ant
           Version: 1.7.0
          Platform: PC
        OS/Version: Windows XP
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Core tasks
        AssignedTo: dev@ant.apache.org
        ReportedBy: R.Lamprecht@t-online.de


On a small project with just a few classes a target "all" that compiles and
builds the jar task will result in warnings "*.class modified in the future" for
each class.

This happens only on Windows (XP, Vista tested) with ant 1.7.0 (current nightly
build, too). Ant 1.6.2 and other operating systems look fine. It is likely
related to the 2s timestamp resolution on Windows. Similar problems have been
reported for early ant versions about 1.3 in general for Windows.

A nasty workaround is to add a <sleep seconds="2" /> for the jar target. One
second results just in less classes reporting the warning depending on the
boundary of the seconds.

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DO NOT REPLY [Bug 43032] - jar reports warning class modified in future on Windows

Posted by bu...@apache.org.
DO NOT REPLY TO THIS EMAIL, BUT PLEASE POST YOUR BUG�
RELATED COMMENTS THROUGH THE WEB INTERFACE AVAILABLE AT
<http://issues.apache.org/bugzilla/show_bug.cgi?id=43032>.
ANY REPLY MADE TO THIS MESSAGE WILL NOT BE COLLECTED AND�
INSERTED IN THE BUG DATABASE.

http://issues.apache.org/bugzilla/show_bug.cgi?id=43032





------- Additional Comments From jkf@apache.org  2007-08-05 07:49 -------
Are you using a FAT filesystem? Since version 278117 (included in Ant 1.7.0) of
FileUtils we assume a millisecond resolution in timestamping on windows NT
(actually the resolution on NTFS is 100 ns. (XP and Vista included.)


http://svn.apache.org/viewvc/ant/core/trunk/src/main/org/apache/tools/ant/util/FileUtils.java?r1=277845&r2=278117

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DO NOT REPLY [Bug 43032] - jar reports warning class modified in future on Windows

Posted by bu...@apache.org.
DO NOT REPLY TO THIS EMAIL, BUT PLEASE POST YOUR BUG�
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<http://issues.apache.org/bugzilla/show_bug.cgi?id=43032>.
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INSERTED IN THE BUG DATABASE.

http://issues.apache.org/bugzilla/show_bug.cgi?id=43032


peterreilly@apache.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|normal                      |regression




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DO NOT REPLY [Bug 43032] - jar reports warning class modified in future on Windows

Posted by bu...@apache.org.
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RELATED COMMENTS THROUGH THE WEB INTERFACE AVAILABLE AT
<http://issues.apache.org/bugzilla/show_bug.cgi?id=43032>.
ANY REPLY MADE TO THIS MESSAGE WILL NOT BE COLLECTED AND�
INSERTED IN THE BUG DATABASE.

http://issues.apache.org/bugzilla/show_bug.cgi?id=43032





------- Additional Comments From R.Lamprecht@t-online.de  2007-08-05 13:01 -------
Indeed I used a FAT partition for data exchange between XP/Vista - Linux. On the
main NTFS partitions it works fine.

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