Installing new java version

I want to start out by saving my java skills are pretty
basic.

I have a java program that has been running fine for years
using java 1.4 on V5R3.

Last week we installed java 1.5 (via PTF). I do not want to
start using it yet, but I wanted to get it installed for
potential future use.



When I check the java version on our system (QSH java
-version) I get 1.4.2





5722JV1 V5R3M0 Developer Kit for Java

5722JV1 V5R3M0 Java Developer Kit 1.3

5722JV1 V5R3M0 Java Developer Kit 1.4

5722JV1 V5R3M7 Java Developer Kit 1.5



No other changes I know of have been made. The java program
has not changed in years and has not been recompiled.



But.. When I run the java program I get an error:

java.lang.NoClassDefFoundError:
org/apache/commons/cli/Option

at java.lang.Throwable.<init>(Throwable.java:195)


at
java.lang.LinkageError.<init>(LinkageError.java:36)


at
java.lang.NoClassDefFoundError.<init>(NoClassDefFoundError.j
ava:40)

at xxapdfec.main(xxapdfec.java:40)


Java program completed with exit code 1



I used debug to check the class paths.

I checked to make sure the .class and jar files were in the
directory they are supposed to be in.



Can installing a new version of java cause a change in a
existing programs execution.

Does anyone have any starting point for me to look at?

How do I read this error logging? What do the numbers (195
36 40) represent? Program line numbers?



Thanks in advance



John