DO NOT REPLY [Bug 21245] New: - jar rebuilds when it shouldn't

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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=21245

jar rebuilds when it shouldn't

           Summary: jar rebuilds when it shouldn't
           Product: Ant
           Version: 1.5.3
          Platform: Other
        OS/Version: Other
            Status: NEW
          Severity: Normal
          Priority: Other
         Component: Core tasks
        AssignedTo: dev@ant.apache.org
        ReportedBy: stellex@lifeharbor.com


Hello, 
   I ran across a weird bug in jar. (It may be in unzip et al as well.)
Here's my jar command:

   <jar jarfile="lib/ppm-server.jar">
     <fileset dir="test"/>
     <fileset dir="testx"/>
   </jar>

Here's the directory structure:
  test/test1/a
  testx/test1/b

testx/test1 has a new timestamp than test/test1.  Basically, it rebuilds the jar
every time with that timestamp.  If I switch the order of the filesets, it acts
as I expect.  


Here's the end of the debug output the first time I run ant with that target:

ppm-server.jar:
fileset: Setup scanner in dir
/home/stefie10/dev/lifeharbor/ppm20/ppm/server/test with patternSet{ includes:
[] excludes: [] }
fileset: Setup scanner in dir
/home/stefie10/dev/lifeharbor/ppm20/ppm/server/testx with patternSet{ includes:
[] excludes: [] }
      [jar] Building jar:
/home/stefie10/dev/lifeharbor/ppm20/ppm/server/lib/ppm-server.jar
      [jar] adding directory META-INF/
      [jar] adding entry META-INF/MANIFEST.MF
      [jar] adding directory test1/
      [jar] adding entry test1/a
      [jar] adding entry test1/b


Here's the output the second time: 

ppm-server.jar:
fileset: Setup scanner in dir
/home/stefie10/dev/lifeharbor/ppm20/ppm/server/test with patternSet{ includes:
[] excludes: [] }
fileset: Setup scanner in dir
/home/stefie10/dev/lifeharbor/ppm20/ppm/server/testx with patternSet{ includes:
[] excludes: [] }
      [jar]  omitted as  is up to date.
      [jar] test1 omitted as test1/ is up to date.
      [jar] test1/a omitted as test1/a is up to date.
      [jar]  omitted as  is up to date.
      [jar] test1 added as test1/ is outdated.
      [jar] test1/b omitted as test1/b is up to date.
      [jar] Building jar:
/home/stefie10/dev/lifeharbor/ppm20/ppm/server/lib/ppm-server.jar
      [jar] adding directory META-INF/
      [jar] adding entry META-INF/MANIFEST.MF
      [jar] adding directory test1/
      [jar] adding entry test1/a
      [jar] adding entry test1/b

The weirdness is that the "test1" is outdated the second time it encounters it.

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