Load jar from my webapp

Hi!
I would like to load a jar file (antlr.jar) from my web application instead of the jar file loaded by WLS.
How can I do that?
I'm using Node Manager to setup/start/stop the managed server. Wich are the script files that are invoked when the control is made by node manager?
Thanks a lot
A.

Hi,
Inside your "WEB-INF/lib" you need to place your "antlr.jar" file ...then Add the following Tag inside *"weblogic.xml"*...
<prefer-web-inf-classes>true</prefer-web-inf-classes>
In this case the classes available inside antlr.jar will be loaded from your application lib only.
EXAMPLE:
<weblogic-web-app xmlns:xsi=”http://www.w3.org/2001/XMLSchema-instance” xmlns=”http://www.bea.com/ns/weblogic/90″ xsi:schemaLocation=”http://www.bea.com/ns/weblogic/90 http://www.bea.com/ns/weblogic/90/weblogic-web-app.xsd”>
<container-descriptor>
<prefer-web-inf-classes>true</prefer-web-inf-classes>
</container-descriptor>
</weblogic-web-app>
To achieve the same thing at EAR level ...please paste your Antlr.jar inside "EAR_ROOT/APP-INF/lib" directory
and provide the following *"weblogic-application.xml"*
<?xml version=”1.0″ encoding=”ISO-8859-1″?>
<weblogic-application xmlns=”http://www.bea.com/ns/weblogic/90″>
<prefer-application-packages>
<package-name>antlr.*</package-name>
</prefer-application-packages>
</weblogic-application>
=================================
<font color=maroon>I'm using Node Manager to setup/start/stop the managed server. Wich are the script files that are invoked when the control is made by node manager?</font>
If you are asking this question Just to set some classpath or some Memory arguments for your Managed Server which is started using NodeManager then you may want to look into it: http://jaysensharma.wordpress.com/2010/03/26/nodemanager-based-managedservers-setting-mem_args/
Thanks
Jay SenSharma
http://jaysensharma.wordpress.com (WebLogic Wonders Are Here)
Edited by: Jay SenSharma on Mar 29, 2010 8:47 PM

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ejp wrote:
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jschell wrote:
rritoch wrote:
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>
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>
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}//try
catch(Exception e)
e.printStackTrace();
}

compressed files are not the problem. It is just the problem of the read not returning all the bytes. Here is a working implementation:
InputStream is = jar.getInputStream(entry);
ByteArrayOutputStream os = new ByteArrayOutputStream(1024);
try{
byte[] buf = new byte[1024];
int read;
while((read = is.read(buf)) > 0) {
os.write(buf, 0, read);
catch(Exception e){
e.printStackTrace();
return null;
image = Toolkit.getDefaultToolkit().createImage(os.toByteArray());
This works but I think you end up opening the jar a second time and downloading it from the server again. Another way of getting the images is using the class loader:
InputStream is = MyApplet.class.getResourceAsStream(strImageName);
In this case, the image file needs to be at the same level than MyApplet.class but you don't get the benefit of enumerating of the images available in the jar.

Load jar from my webapp

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