RE: Classpath Setting Using only Folders

One other thing you need to know about the extensions directories:
because of the way that the classloaders are organized, a class in the
extensions directories can't load a class from the regular classpath. So
if your utility classes (the ones you're going to put into the
extensions directories) make callbacks to your code (which is in the
classpath), you can get a ClassNotFoundException.

This can be very disconcerting. And I have been burned by that three
times. So now I don't do it any more.

PC2

-----Original Message-----
From: java400-l-bounces@xxxxxxxxxxxx
[mailto:java400-l-bounces@xxxxxxxxxxxx] On Behalf Of Scott Johnson
Sent: April 21, 2009 05:38
To: Java Programming on and around the iSeries / AS400
Subject: Re: Classpath Setting Using only Folders

After trying the folder thing with little success over the weekend, our
Java developer did a little more research and said that was new for 1.6.
I tried upgrading the i5 to v 1.6 a while back with little success. Will
try again after doing more research and such on that subject.

I thought about using the "/QIBM/UserData/Java400/ext" folder but don't
really like the idea of throwing tons of jars in there. The number of
jars needed to support JasperReports3.5 is 40+. And then start throwing
other jars in there to support other 3rd party software seems like a
nightmare to me.

I like the suggestions of the java.ext.dirs property and the jar
manifest.
Will do some more research on those.

THANKS!
-- Scott J