The wildcard expansion is supported by java launcher.
When not using the java launcher, and using the JNI invocation API directly
( which is how RPG invokes the jvm), its up to the caller to provide a full
classpath and expand any wildcards required.

RUNJVA & QSHELL thus uses java launcher, so it supports the wildcard
expansion.

Stackoverflow link shows there is similar issue in oracle jdk. Seems it's
not an IBM specific issue.

https://stackoverflow.com/questions/9320619/can-jni-be-made-to-honour-wildcard-expansion-in-the-classpath

Tarlochan Singh Bimbra ( Tosh )
PartnerWorld for ISVs Technical Support and IBM i Global Support Center



From: Justin Taylor <jtaylor.0ab@xxxxxxxxx>
To: java400-l@xxxxxxxxxxxxxxxxxx
Date: 08/05/2020 02:09 PM
Subject: [EXTERNAL] Wildcards in classpath?
Sent by: "JAVA400-L" <java400-l-bounces@xxxxxxxxxxxxxxxxxx>



Is it possible to use wildcards in the Java classpath? I'd like to add
this entry:
/java/myApps/*

And for this single entry to find any JAR files in sub-dirs beneath
/java/myApps (e.g /java/myApps/Apple/A.JAR,
/java/myApps/Grape/Concord/B.JAR).

I tried /java/myApps/* but it doesn't seem to work for me. FWIW, I'm
setting the CLASSPATH via a job-level ENVVAR and the calling apps are RPGLE
accessing the Java JARs via extProc(*java).


TIA
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