How to execute an Ant task only if a file is changed? -

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i have been trying use following code task working if file changed doesn't seem work. task called irrespective of whether there change or not. 

<target name ="widget-change" depends="configuration-for-widgets">     <fileset dir="${src-location}">                  <include name="com.myapp.mainclasses.myclassone.java"/>         <include name="com.myapp.mainclasses.myclasstwo.java"/>         <modified update="true"/>     </fileset>               <antcall target="gwt-compile"/>          </target>

are using ant version less 1.8.0?

in getting ant selector work properly, asker resolved using depend selector instead of modified.

in ant bug 32958, workaround suggested use nested update param:

you may able work around using nested

      <param name="update" value="false"/>

instead of update attribute.


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