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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=20085 If a propert is unset, property substitution does nothing [EMAIL PROTECTED] changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution| |WONTFIX ------- Additional Comments From [EMAIL PROTECTED] 2003-05-21 00:26 ------- Workaround is to set the property after the env load <property name="env.ALERT_DIR" value=""/> If it has a value, this has no affect, otherwise it will be set to an empty string. Is it a bug? Maybe, but it is the way it is and changing it may be difficult since some people may rely on it to catch errors. Think about <delete dir="/${location}"/> :-) Ant 1.6 will probably allow you to plug in a different Property resolution system which could react differently such as to throw an exception (my preference) or to use an empty string, etc.
