I am thinking we can and should factor out all timestamp checking into one place, like FileUtils and FileSet.
1. lots of code (JarSigner, uptodate) dont use the file system granularity at all when checking file ages.
recommendation: some method
boolean FileUtils.IsUpTodate(source,dest,granularity) ...
and
FileUtils.IsUpTodate(source,dest) {
return IsUpToDate(source,dest,getFileTimestampGranularity())
}2. There are a few places where code bulk checks filesets/filelists for age compared to a source file. If we factor it out, we get to keep all the logic in one place for better flexibility.
Incidentally, on that granularity discussion yesterday. There is a platform independent way to determine this: experimentation. Just set the timestamp of a file repeatedly to work out the minimum acceptable granularity for setLastModified() getLastModified().
-steve
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