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From Kumar Servai <>
Subject VAJ
Date Thu, 09 May 2002 13:40:19 GMT

Hi all,
I am need of help for automating the build process. Present scenario is making solution for
projects in Visual Age for java., creating jar files from IDE and exporting., for EJB export
as deployed JAR from VAJ., These things will be deployed to Websphere. The SCM tool is Clearcase
Is there a way to do build using ant rather than doing it through IDE.,
I am quite new to build as well as to VAJ.
Thanks in advance
  Shimon Crown <> wrote: I found the problem. I am including
two entire directories in my builds.
When I ran ant with -debug as you suggested I saw that the compiler was
getting a very long classpath (far too long to show here !!). Apparently the
later compilers were choking on this. When I removed extraneous files from
these directories I got acceptable build times.

Thanks for the help.

Shimon Crown

----- Original Message -----
From: Conor MacNeill 
To: Ant Users List 
Sent: Thursday, May 09, 2002 3:34 PM
Subject: Re: Ant very slow with JDK 1.3 and 1.4

> Shimon Crown wrote:
> > I have a number of JDKs on my Windows NT box. I have found that I
> > get unacceptably slow compile times when compiling with JDK 1.3.1 or
> > JSDK 1.4.0. For comparison it takes about 10 seconds to compile 6 files
> > with JDK 1.2.2 (supplied with the IDE I use) whereas it takes 2.5
> > with the later JDKs. I am changing the JDK by setting the JAVA_HOME
> > variable in the ant.bat file
> >
> 6 files in 2.5 minutes - that is pretty slow, assuming they are your
> or garden variety classes. I just built ant on my slow old box and it took
> 50 seconds for a complete distribution (including compiling 485 files).
> > e.g :
> >
> > rem set JAVA_HOME=c:\j2sdk1.4.0
> > rem set JAVA_HOME=c:\jdk1.3.1
> > set JAVA_HOME=c:\visualcafexe\Java2
> >
> You could check the following
> 1. No Cafe stuff in your Path
> 2. Check for java executables in Winnt\system32
> 3. Check for stuff in your classpath.
> If that gives no joy, you should run ant with the -debug flag and try to
> where the time is being spent. If it is in the compile step, what
> when you use javac with the same args (You'll see them in the output)?
> Conor
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