For a given build descriptor option (or Java run-time property), the value that is initially processed at generation time stays in effect, and the overall order of precedence is as follows:
The benefit of this scheme is convenience:
Default options can be useful when your organization develops a set of programs that must be generated or prepared similarly.
If a given build descriptor is used more than once, only the first access of that build descriptor has an effect. Also, only the first specification of a particular option has an effect.
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