RE: Installing new java version -- JAVA400-L

Unless you do something to redirect standard out, it'll wind up in a QPRINT file.

org.apache.commons.cli is the command line interface. Just glancing through the source, the 1.2 version of Option class uses Java 5 constructs in the static initialization. If somehow a 1.2 version of commons-cli jar file is hit first by your classloader, initialization is going to fail. Then when some other piece of code attempts to parse a command line, the NoClassDefFoundError will be thrown. Look all over your machine for a commons-cli-1.2.jar file.

Be aware of java extensions. Besides your classpath and the jre, classes may also be loaded from jars in the extension path. Besides the {jre}/ext path, jars may also be loaded from the /QIBM/UserData/Java400/ext path.

-----Original Message-----
From: java400-l-bounces@xxxxxxxxxxxx [mailto:java400-l-
bounces@xxxxxxxxxxxx] On Behalf Of John Allen
Sent: Monday, August 05, 2013 11:09 AM
To: 'Java Programming on and around the IBM i'
Subject: RE: Installing new java version

Ok, Thanks so much for that bit of information. For some
crazy reason I thought the message text displayed was
pointing to the cause of the error.

Now to go find the "standard out log"

-----Original Message-----
From: Dan Kimmel [mailto:dkimmel@xxxxxxxxxxxxxxx]
Sent: Monday, August 05, 2013 10:31 AM
To: Java Programming on and around the IBM i
Subject: RE: Installing new java version

java.lang.NoClassDefFoundError does not necessarily mean
that the jar was not found by the classloader. It may also
mean that the class failed during initialization. That's the
more likely issue as you haven't changed classpath or
methods of loading and you are still running in JVM 1.4.2.
Find your standard out log and look for errors during class
initialization much earlier than your NoClassDefFoundError.

-----Original Message-----
From: java400-l-bounces@xxxxxxxxxxxx [mailto:java400-l-
bounces@xxxxxxxxxxxx] On Behalf Of John Allen
Sent: Friday, August 02, 2013 2:51 PM
To: 'Java Programming on and around the IBM i'
Subject: RE: Installing new java version

Dan,

Thanks for your reply. Just wanted to add this bit of

info:

We have other java programs that are still running fine.

Displaying /qibm/userdata/java400
Opt Object link Type Attribute Text
ext DIR

AdoptAuthority DIR

Nothing else, no files at all, I can't seem to find
SystemDefault.properties file anywhere , is it OK to not

have one?

Can I create a file SystemDefault.properties and add
java.home=/QIBM/ProdData/Java400/jdk14/
java.version=1.4
to it?

I checked /home and it is empty

So I displayed /qibm/Prodata/java400 and I see:
Object link Type
ext DIR
fonts DIR
jdk13 DIR
jdk14 DIR
jdk15 DIR
jt400ntv.jar STMF
Hello.class STMF
Hello.java STMF
MRI2924 DIR
NAWTtest.class STMF
NAWTtest.java STMF
PropDump.class STMF
PropDump.java STMF
QDefineClassCache.jar STMF
SystemDefaultCacheExample.properties STMF

Does this look OK? Still no SystemDefault.properties file

anywhere

I put the program in debug and just before it executes the

RUNJVA

command I ran RUNJAVA *VERSION And get Version JVM V5R3M0

JDK 1.4.2.

The error is caused by the following program execution

using

RUNJVA:
RUNJVA CLASS('xxapdfen') PARM(&infileflg &FullPathIn)
CLASSPATH(&CLASSPATH) CHKPATH(*IGNORE)

Where &classpath=

/dapp/java/xxapdfenc.jar:/dapp/java:/dapp/java/xxapdfeni.jar

:

The jar files are where they have always been.

Any other ideas for me?

I am going to uninstall the PTF that was used to install

java 1.5 this

weekend and see if that returns us back to working.

-----Original Message-----
From: Dan Kimmel [mailto:dkimmel@xxxxxxxxxxxxxxx]
Sent: Thursday, August 01, 2013 4:49 PM
To: Java Programming on and around the IBM i
Subject: RE: Installing new java version

Start by checking how that java program is invoked. At

V5R3, the

java.version system property has the most impact on which

JVM is

chosen. That property can be set in the QSH java command

line (in QSH

java -Djava.version=1.4, eg).

In qsh, I can do this:
$

java -version -Djava.version=1.3.1

java version "1.3.1"
$

java -version -Djava.version=1.4.2

java version "1.4.2"
$

java -version -Djava.version=1.4

java version "1.4.2"
$

java -version -Djava.version=1.1

Java Development Kit could not be found.
$

java -version -Djava.version=1.2

java version "1.2.2"
$

I haven't been able to find a way to set version from the

RUNJVA

command, however. I believe the command invocation pulls

its value

from SystemDefault.properties file.

Browse : /qibm/UserData/Java400/SystemDefault.properties
Record : 1 of 2 by 18
Control :

....+....1....+....2....+....3....+....4....+....5....+..
************Beginning of data**************
java.home=/QIBM/ProdData/Java400/jdk14/
java.version=1.4
************End of Data********************

As above, there's one in the /qibm/UserData/Java400. There

can also be

one in the home directory of the user which takes

precedence over the

one in /QIBM.

There was significant displacement of classes in Java 5.
Many classes were added to the core distribution that had

been

commonly included only by classpath. This was particularly

true of

servlet classes. The net effect was that applications that

had been

running in 1.4.2 would throw exactly the error you're

seeing as the

classes in the classpath were duplicated in the runtime.

To see what you're command is doing, try to get as close

as possible

to the environment where RUNJVA is invoked in your

application and run

RUNJVA *version

If it comes up 1.5, you'll have to find where the property

is set and

change it, else figure out what classes are being

duplicated in the

classpath and remove the jar from the classpath.

-----Original Message-----
From: java400-l-bounces@xxxxxxxxxxxx [mailto:java400-l-
bounces@xxxxxxxxxxxx] On Behalf Of John Allen
Sent: Thursday, August 01, 2013 2:43 PM
To: JAVA400-L@xxxxxxxxxxxx
Subject: 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

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