get Reproducible File Timestamp
Specifies the reproducible file timestamp used for each entry in the archive in milliseconds from the epoch of 1970-01-01T00:00:00Z.
If not set, then each archive entry will use the value as determined by the preserveFileTimestamps property. If set, then each archive entry will use the reproducible file timestamp. If set, the preserveFileTimestamps property must be false (the default value), otherwise the task fails.
Each archive format has a minimum supported timestamp, and smaller values are raised to that minimum: 1980-02-01 00:00 for ZIP archives and 1970-01-02T00:00:00Z for TAR archives.
Return
the reproducible file timestamp used for each entry in the archive
Since
9.7.0