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From "Lutz Epperlein" <>
Subject Suggestion Ant2: "Compressed" jars
Date Wed, 14 Mar 2001 16:59:43 GMT
<color><param>0100,0100,0100</param>Based the message below, posted on ant-user,
I want to make a 

Especially for creating applet jar files it is necessary to downsize them. 

A way to do it is to put only necessary classes into the destination jar. 

</color>You can manually look for dependencies or use some wrong hack 
how I do 

<color><param>0100,0100,0100</param>(see here:

</color>Another alternative may be the JAX tool from IBM alphaworks or a 
tool which should exit within jini, I don't know.

But it would be very convenient to have such a task within Ant, 
maybe based on the <<depend> task.


Lutz E.

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</color>Send reply to:  	<color><param>0000,0000,8000</param></color>

Date sent:      	<color><param>0000,0000,8000</param>Wed, 14 Mar 2001 11:58:45

From:           	<color><param>0000,0000,8000</param>Julian gosnell <<></color>

Organization:   	<color><param>0000,0000,8000</param>UBSW</color>

To:             	<color><param>0000,0000,8000</param></color>

<bold>Subject:        	<color><param>0000,0000,8000</param>and finally
- <<shake/>...</bold></color>

<underline><color><param>0000,8000,0000</param>[ Double-click this
line for list subscription options ]</underline></color> 

Has anyone thought about or come across  a predicate/piece-of-

that could do this :

<<shake outputjar="yyy" classpath="ccc">

 <<shakeroot name="com.mycom.MyServlet"?>

 <<shakeroot pattern="com.mycom.MyDynamicallyLoadedClass*"/>


where shake figures out which classes all the shakeroots depend 

and copies  these and the shakeroots into the outputjar.

This would drastically reduce the size of some of the jars that I


I could take 3rd party jars that I consume, break them open and do

this by hand, but it would be nicer to be able to do it at deployment.

If I am dynamically loading classes, then I would have to mention 

as shakeroots before I shake !

Anyone care to comment,


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Lutz Epperlein, Software Developer
OPIX AG Berlin, Germany

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