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From Peter Davison <peterdavi...@home.com>
Subject Re: java.io.IOException: Not enough space
Date Fri, 16 Nov 2001 20:31:03 GMT
On Fri, 16 Nov 2001 15:29:04 -0500
Peter Davison <peterdavison@home.com> wrote:

> Hi.
> 
> I've seen that exception before (when trying to compile an HTML template
> using XMLC).  I'm pretty sure that the "not enough space" message 
> is referring to SPAP space, not memory.  If you had run out of 

Sorry, make that "SWAP" space (blush)...

> memory you would see java.lang.OutOfMemory exceptions.
> 
> Check to see what your swap space is on your machine and see if you can increase it.
> 
> Regards,
> Pete.
> 
> On Fri, 16 Nov 2001 14:39:16 +0100
> Hélène JOANIN <Helene.Joanin@evidian.com> wrote:
> 
> > Hi,
> > 
> > 
> > I'm a new user of Ant and I need advice to be able to correct my problem.
> > I use the Ant version 1.4.1.
> > I have writen an Ant build file to build my product.
> > The building works fine on a machine which have 512M memory.
> > 
> > But I have the following error:
> >     java.io.IOException: Not enough space
> > when I try to build my product on a machine which have 256M memory.
> > 
> > However, on this machine, I am able to fully build my product by calling several
> > times ant
> > (without cleaning my building environment).
> > I haven't find any information about this kind of memory problem on the Ant
> > mailing list
> > and on the Ant FAQ.
> > I don't known if it's a 'normal' problem, (because Ant needs a lot of memory
> > resource :-( ),
> > or if it's due to a bug of Ant,
> > or if it's due to my 'non well-writed' build file ?
> > 
> > The building process of my product is quite complex, and I probably not write
> > the building file
> > on the "Ant Spirit".
> > I will try to describe the building process more in details, in order for you to
> > give me
> > advise.
> > 
> > I can already make two remarks:
> > - the <antcal> task is frequently used,
> > - the 'fork' attribute of the <java> task is set to "yes" to be able to stop
the
> > buildprocess
> > on error.
> > 
> > Thanks a lot for any clue.
> > Kind regards.
> > Hélène.
> > 
> > 
> > 1) The main goal of my building process.
> > ========================================
> > It's simply to build a jar !
> > This jar file is composed of :
> >      - classes extracted from 'externals' jar files,
> >      - classes builded from java sources; note that some java sources are
> > builded
> >      - classes builded from others classes (stub and skel)
> > 
> > 
> > 2) How classes are extracted from 'externals' jar files ?
> > =========================================================
> > I got many jar files to unjar, and I want to unjar the jar file only if it is
> > necessary.
> > That's why I define three various targets.
> > 
> > <target name="externals" depends="init">
> >   <antcall target="unjar_ext">
> >     <param name="dir" value="....." />
> >     <param name="name" value="....." />
> >   </antcall>
> >   <antcall target="unjar_ext">
> >     <param name="dir" value="....." />
> >     <param name="name" value="....." />
> >   </antcall>
> >   ..........
> > </target>
> > 
> > <target name="unjar_ext">
> >   <uptodate property="unjar.notRequired"
> > targetfile="${build.classes.dir}/.${name}">
> >     <srcfiles dir="${externals.dir}/${dir}"
> >               includes="${name}.jar"/>
> >   </uptodate>
> >   <antcall target="unjar_ext_if">
> >     <param name="condition" value="unjar.notRequired"/>
> >     <param name="dir" value="${dir}"/>
> >     <param name="name" value="${name}"/>
> >   </antcall>
> > </target>
> > 
> > <target name="unjar_ext_if" unless="${condition}">
> >   <unjar src="${externals.dir}/${dir}/${name}.jar"
> >          dest="${build.classes.dir}" />
> >   <echo message="Classes of ${dir}/${name}.jar extracted"
> > file="${build.classes.dir}/.${name}" />
> > </target>
> > 
> > 
> > 3) The "compile" process.
> > =========================
> > 
> > The compile process depends on
> > - the extraction of the external jar classes,
> > - the precompile process,
> > - the java sources compilation,
> > - the Stub/Skel generation.
> > 
> > The precompile process is composed of two various process.
> > The goal is to build java sources
> > - from java source 'templates', this is the jpp process;
> > - and from XML schema, this is the castor process.
> > 
> > The jpp and castor tools are java programs which are not Ant tasks.
> > As I want to stop the buildprocess if the command fail, I set the 'fork'
> > attribute of the <java>
> > task to "yes".
> > 
> > 
> > a) The JPP precompile process.
> > ------------------------------
> > 
> > <target name="precompile_jpp_all" >
> >   <antcall target="precompile_jpp">
> >     <param name="name" value="....."/>
> >   </antcall>
> >   <antcall target="precompile_jpp">
> >     <param name="name" value="....."/>
> >   </antcall>
> >   .....
> > </target>
> > 
> > <target name="precompile_jpp">
> >   <uptodate property="jpp.notRequired"
> >             targetfile="${build.classes.dir}/${name}.class">
> >     <srcfiles dir="${src.dir}"
> >               includes="${name}.jpp"/>
> >   </uptodate>
> >   <antcall target="precompile_jpp_if">
> >      <param name="name" value="${name}"/>
> >   </antcall>
> > </target>
> > 
> > <target name="precompile_jpp_if" unless="jpp.notRequired">
> >   <java classname="${preprocessor.jpp}" fork="true" failonerror="true">
> >      <arg value="-D"/>
> >      <arg value="${objectweb_orb}"/>
> >      <arg path="${src.dir}/${name}.jpp"/>
> >      <classpath refid="base.classpath"/>
> >    </java>
> > </target>
> > 
> > b) The castor precompile processor
> > ----------------------------------
> > 
> > <target name="precompile_castor">
> >    <uptodate property="castor.notRequired"
> >              targetfile=".....">
> >       <srcfiles dir= "....."
> >                 includes="**/*.xsd"/>
> >    </uptodate>
> >    <antcall target="precompile_castor_" />
> > </target>
> > 
> > <target name="precompile_castor_" unless="castor.notRequired">
> >   <java classname="${preprocessor.castor}"
> >         fork="true"
> >         failonerror="true"
> >         dir=".....">
> >     <arg value="...."/>
> >     <arg path="...."/>
> >     <classpath refid="base.classpath"/>
> >   </java>
> >   .....
> > </target>
> > 
> > c) The compilation  of java sources process
> > ------------------------------------------
> > 
> > This is made by using the <javac> task.
> > 
> > d) The stub and skel building process
> > -------------------------------------
> > 
> > As the Stub/Skel compiler is not the rmic standard compiler, and as this
> > compiler is a java
> > program which is not an Ant task, the targets define to the Stub/Skel build
> > process
> > looks like the targets define to the JPP precompile process.
> > 
> > 
> > -- 
> > -=- Hélène JOANIN -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
> >   mailto:Helene.Joanin@evidian.com   http://www.evidian.com
> >   Phone: 33.4.76.29.73.53            Fax: 33.4.76.29.76.00
> >   Download our EJB Server JOnAS at http://www.objectweb.org
> > 
> > --
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> > 
> 
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