J2EE app client class loading?

[DEBEDb]

Hi all,

It looks like the class loading is not working for me as described at
http://publib.boulder.ibm.com/infocenter/wasinfo/v6r0/index.jsp?topic=/com.ibm.websphere.express.doc/info/exp/ae/ccli_classloading.html.

Here is what is happening:

I have an EAR, in which a client jar (clientlauncher.jar) resides. The
Class-Path in its Manifest.mf is as follows:

Class-Path: plugins/framework plugins/checkservices
plugins/transferservices plugins/alerts plugins/pr
plugins/pr/achapps plugins/pr/wireapps
pr-hotfix.jar pr.jar

The main class of the clientlauncher.jar, Launcher, should load
another class. But it looks like it always does that from pr.jar,
even when I put a modified version of the second class
under, say, EAR_ROOT/plugins/pr (which is first on the classpath).

Here's an experiment. I created the Launcher class as follows:

public static void main(String[]argv) {
String mainClass = argv[0];
ClassLoader loader = Launcher.class.getClassLoader();
String resource = mainClass.replaceAll("\\.", "/") + ".class";
System.out.println(mainClass +
": " +
loader.getResource(resource));
URL url = null;
int i = 1;
for (Enumeration en = loader.getResources(resource);
en.hasMoreElements();) {
url = (URL) en.nextElement();
System.out.println(i + ". " + mainClass + ": " + url);
i++;
}

And here is what I get, when com.ph.pr.common.install.Noop class is
both in pr.jar and in plugins/pr, under the EAR:

com.ph.pr.common.install.Noop:
jar:file:/D:/apps/wcmsuite73/installedApps/WCM73_PaymentsAndReporting.ear/pr.jar!/com/ph/pr/common/install/Noop.class

1. com.ph.pr.common.install.Noop:
jar:file:/D:/apps/wcmsuite73/installedApps/WCM73_PaymentsAndReporting.ear/pr.jar!/com/ph/pr/common/install/Noop.class

2. com.ph.pr.common.install.Noop:
file:/D:/apps/wcmsuite73/installedApps/WCM73_PaymentsAndReporting.ear/plugins/pr/com/ph/pr/common/install/Noop.class

In other words, as you can see, the JAR one gets loaded first!
(But it certainly does find the one under plugins/pr if I do
getResources()).

That is to say, it seems that the order of Class-Path: entries
in Manifest.mf is not honored...

Thanks.

[Charly Oz]

If you are using WASv6, have a look in the Admin Console under
Troubleshooting. There is a class loader tool that shows what is loaded, etc
and may be of some use to you with this.

"DEBEDb" <deb...@gmail.com> wrote in message
news:1149697614.5...@j55g2000cwa.googlegroups.com...

[DEBEDb]

But this is a client, where would I find it in the Admin Console? It's
running in a separate JVM, how would the AdminConsole
find that?

[DEBEDb]

Update: Putting a modified file inside pr-hotfix.jar works
as expected. So it's only directories in the manifest
classpath that are a problem, the JAR order works as
specified.