Jar file loading

[Jim Cheesman <jc...@msl.es>]

If I rename a jar file (on Win2000) from x.jar to x.jar_ ant will load it 
(from ant\lib) correctly - yet if I name it x.txt (for example) it will not.


Is this because of ant or java? (Or is it correct behaviour?)


Jim




--

                           *   Jim Cheesman   *
             Trabajo: 
jchees@msl.es - (34)(91) 724 9200 x 2360
         On one hand, I'm 
indecisive, but on the other, I'm not.

Re: Jar file loading

[Jim Cheesman <jc...@msl.es>]

At 04:00 PM 23/05/01, you wrote:
>Jim,
>
>Actually because of Windows.


Ah.... should have guessed!  Further testing revealed that it didn't happen 
on the Aix box we have here, although there was a different problem there, 
which further adds to the confusion ;) On Aix, the classes are loaded 
preferentially from the classpath, and then from ANT_HOME/lib, while on 
Win2000 it's the other way round.
I spent hours tracing down why I was getting a deprecated warning for 
org.xml.sax.Parser on Aix but not on my desktop machine: Win2000 was 
loading parser.jar_ from lib, Aix was loading xerces.jar from my classpath, 
and ignoring parser.jar in lib.

Still, if anyone needs a couple of utilities to trace down where a class is 
being loaded from, I'm happy to share. (One's even defined as an ant task! ;)


Something to take note of for those of us using more than one 
environment.... What can I expect to see if I move over to linux, for example?




Jim






--

                           *   Jim Cheesman   *
             Trabajo: 
jchees@msl.es - (34)(91) 724 9200 x 2360
         On one hand, I'm 
indecisive, but on the other, I'm not.

Re: Jar file loading

[Conor MacNeill <co...@cortexebusiness.com.au>]

Jim,

Actually because of Windows. I think if you look for *.jar in a batch file,
the old 8.3 thing comes out to play and you find files with any extension
starting with jar. It is probably this line in ant.bat
for %%i in ("%ANT_HOME%\lib\*.jar") do call "%ANT_HOME%\bin\lcp.bat" "%%i"

I tried this
for %%i in ("%ANT_HOME%\lib\*.jar") do echo "%%i"
with the following results

"F:\Software\Ant\lib\ant.jar"
"F:\Software\Ant\lib\ant.jaroobah"
"F:\Software\Ant\lib\crimson.jar"
"F:\Software\Ant\lib\jaxp.jar"
"F:\Software\Ant\lib\optional.jar"

Gotta love that 8.3 legacy.

Conor


----- Original Message -----
From: "Jim Cheesman" <jc...@msl.es>
To: <an...@jakarta.apache.org>
Sent: Wednesday, May 23, 2001 11:30 PM
Subject: Jar file loading


> If I rename a jar file (on Win2000) from x.jar to x.jar_ ant will load it
> (from ant\lib) correctly - yet if I name it x.txt (for example) it will
not.
>
>
> Is this because of ant or java? (Or is it correct behaviour?)
>
>
> Jim
>
>
>
>
> --
>
>                            *   Jim Cheesman   *
>              Trabajo:
> jchees@msl.es - (34)(91) 724 9200 x 2360
>          On one hand, I'm
> indecisive, but on the other, I'm not.
>
>
>