DO NOT REPLY [Bug 20179] New: - Inline manifest causes jar to be rebuilt too often

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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=20179

Inline manifest causes jar to be rebuilt too often

           Summary: Inline manifest causes jar to be rebuilt too often
           Product: Ant
           Version: 1.5.1
          Platform: Other
        OS/Version: Other
            Status: NEW
          Severity: Major
          Priority: Other
         Component: Core tasks
        AssignedTo: dev@ant.apache.org
        ReportedBy: gunnar.grim@ninetech.se


When an inline manifest element is used, the dependency checking gets confused.
According to the documentation, the jar should be rebuilt if any dependent file
has been changed, including the build.xml itself. That is fine, but if an
expanded property used within the manifest element causes the resulting manifest
to be different from the one in the jar, the jar is rebuilt. I have an inline
manifest where the implementation version is constructed from properties
including one that is the time of day in hours and minutes. If at least one
minute has passed since the last rebuild, the jar is rebuilt again. This
behaviour makes it practically impossible to include build date and time in the
manifest.