why size is coming difference through ant jdeveloper

through ant (in command prompt) if i build the war it is coming 6MB;in jdeveloper i created one build.xml and generated one build then it is coming 9MB size;ideally both should come same;i am not able to find the difference between the two wars.but the two scripts are different.
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chaitu chaituAsked:
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objectsCommented:
iiiiin zinzip, look at file properties
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objectsCommented:
expand the two wars and do a diff to determine if there is any difference in the contents
if the contents are the same then the difference is probably compression used.
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chaitu chaituAuthor Commented:
how to diff the to wars if there is any difference in the contents??
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chaitu chaituAuthor Commented:
if i open up 2 wars i can't see difference contents wise;

do u think for compression will it make that much difference??
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objectsCommented:
first expand then (they are just zip files) then diff the expanded directories
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objectsCommented:
> do u think for compression will it make that much difference??

yes, if one isn't compressed at all
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chaitu chaituAuthor Commented:
i want to update classes in WEB-INF/classes of A.war;but it is creating another folder outside WEB-INF;

 
 <property name="blddir" value="../Web/classes"/>
 <property name="temp" value="c:/temp"/>


  <jar jarfile="${temp}/A.war"  update="true" destdir="${blddir}">
             <fileset dir="${temp}">
               <include name="WEB-INF/*.class" />
           </fileset>
     </jar>
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chaitu chaituAuthor Commented:
why is not compressing??
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objectsCommented:
it should be.
why are you not using the war task?

http://ant.apache.org/manual/CoreTasks/war.html

that could be another reason for difference.
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chaitu chaituAuthor Commented:
first i used war task only then it gives large size;then i go for jar task for creating war also;
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objectsCommented:
i've posted numerous reasons why the size would be different, and what to check to determine the reason.
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chaitu chaituAuthor Commented:
i used war task only but still getting the large difference.i have verified both wars i didnt find any difference between the files.still why its coming difference;how to do compression???

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objectsCommented:
they are both zip files, if the files are identical then the level of compression must be different.
you can check it with winzip or similiar.
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chaitu chaituAuthor Commented:
how can i check with winzip or winrar the level of compression ??
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