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From Jon Schewe <jpsch...@mtu.net>
Subject Re: [JAR task] adding JARS that are in a folder to another jar to create an executable jar of an application
Date Mon, 25 Dec 2006 13:53:46 GMT
Yeah, that's not going to work.  You can't include jars inside other
jars and expect them to be found.  Unless you use something like
one-jar.  http://one-jar.sourceforge.net/

On Sun, 2006-12-24 at 20:28 -0500, Laurent Morissette wrote:
> Hey everybody,
> I'm doing a project under eclipse 3.2 and i'm trying to write an ant file
> that can be used on any other project and i'm having some troubles :)
> So, to cut short on chit-chat, here my project structure:
> -src folder with some sub packages
> -lib folder containing tird party librairies such as log4j
> -dist folder to put the generated JAR
> ant.properties to store variables definition
> 
> Here are some snippets of my build file to hepl unsertand my probelem:
> 
> <!-- =================================
>           target: Compile
>          ================================= -->
>     <target name="Compile" depends="Clean" description="Compile current
> project">
> 
>         <echo>Compilation process started...</echo>
> 
>         <javac srcdir="${src.dir}" destdir="${class.dir}">
>             <classpath location="${lib.dir }">
>                 <fileset dir="${lib.dir}">
>                     <include name="**/*.jar" />
>                 </fileset>
>             </classpath>
> 
>         </javac>
> 
> 
>     </target>
> 
> This task is OK but the dist task does not work properly:
> 
> <!-- - - - - - - - - - - - - - - - - -
>           target: dist
>          - - - - - - - - - - - - - - - - - -->
>     <target name="dist" depends="Compile">
>         <mkdir dir="${dist.dir}" />
> 
> 
> 
>         <jar destfile="${dist.dir}\${executable}" basedir="${ class.dir} ">
>             <fileset dir="${class.dir}" />
>             <zipfileset dir="${lib.dir}">
>              <include name="**/*.jar" />
>             </zipfileset>
> 
> 
>             <manifest>
>                 <attribute name="Manifest-Version" value="1.0" />
>                 <attribute name="Created-By" value="L. Morissette" />
>                 <!--attribute name="Class-Path" value="${classpath} "/-->
>                 <attribute name="Main-Class" value="${mainClass}" />
>             </manifest>
>         </jar>
> 
>     </target>
> 
> This correctly add my libs into "${executable}" but when I try to run it, I
> get the following exception :
> 
> Exception in thread "main" java.lang.NoClassDefFoundError :
> org/apache/log4j/Logger
>         at LogTest.<clinit>(Unknown Source)
>         at MainClass.main(Unknown Source)
> 
> (assuming that I'm using log4j third-party lib)
> 
> I've seen somewhere that it was necessary to define a Class-Path entry to
> the MANIFEST,MF file, so i've  created a task setClassPath:
> 
> <!-- - - - - - - - - - - - - - - - - -
>           target: setClassPath
>          - - - - - - - - - - - - - - - - - -->
>     <target name="setClassPath">
>         <echo>Setting classPath</echo>
>         <pathconvert property="classpath" pathsep=" ">
>             <path>
>                 <fileset dir="${lib.dir}" includes="*.jar,*.zip" />
>             </path>
>             <map from="${lib.dir}" to="." />
>         </pathconvert>
> 
> 
>     </target>
> But this does'nt work either, so what did I do wrong ?
> 
> Any help would be welcome :)
> 
> 
> P.S: for those who might ask why i'm not using Netbeans, the reason is
> simple, I have a restriction to use only Eclipse and I want to be able to
> use my buildfile in any other projects with same structure whitout having to
> chand anything to the script base :)
> 
> Oh and I almost forgot, in a old project I specified all the libs myself and
> it worked fine ??!!!!
> 
> 
> 
> 
> Thank again :)
> 

________________________________________________________________________
Jon Schewe | http://mtu.net/~jpschewe
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