You really don't want those in Java400/ext. That's where java extensions go. Java extensions are not subject to the same kind of security checks as normal jars and it is really hard to override jars in that path. For the most part, only security extensions to java should go in the ext path.

Create a directory in the IFS and put all your POI jars in there. When you start your RPG program, make sure the classpath includes a full path to *EACH* jar.

FWIW, depending on what operating system you're using, java will reside in either /QIBM/ProdData/Java400 or /QOpenSys/QIBM/ProdData/Java. All the J9 JVM's live only in QOpenSys.

-----Original Message-----
From: java400-l-bounces@xxxxxxxxxxxx [mailto:java400-l-bounces@xxxxxxxxxxxx] On Behalf Of Gary Thompson
Sent: Wednesday, May 29, 2013 3:32 PM
To: Java Programming on and around the IBM i
Subject: .jar/.tar file question #2

I think I now have the .jar files I need (thanks Gary and Darren) and I think these need to be copied to: /QIBM/UserData/Java400/ext

But only have /QIBM/UserData/ but no Java400/ext

Do I just create these directories/folders ?
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