Hi Steve,
on the first machine the problem occurred, we uninstalled RDi completly and
installed it from scratch with fix pack 11. This did`t help at all. We still
had the same problem.
I tried multiple things to make it work and at the end I had a workaround
which made it work without Mikes fix, but of course Mikes fix is much
better.
I downloaded all JTOpen versions from 9.6 to 10.6 from the link below. Then
I replaced the JTOpen jt400.jar in folder
...\SDPShared\plugins\com.ibm.etools.iseries.toolbox_8.5.6109.v20210426_1434
\runtime with the downloaded JTOpen jar. With JTOpen 9.6 and 9.7 the pcml
exception didn`t occur any longer. But after this I got a null pointer
exception in our CMOne NG plugin, which could absolutly not be explained.
Normally we build our CMOne NG plugin with RDP 8.0, which uses a Java 5 JDK.
Now I built our CMOne NG plugin with RDi 9.6.0.11, which uses a Java 8 JDK,
and this fixed the null pointer exception and CMOne NG was able to work.
https://sourceforge.net/projects/jt400/files/JTOpen-full/
My assumption is, that the JRE, which is delivered with RDi 9.6.0.11 has a
problem with jars, who are compiled with a lower target JRE then Java 8. I
checked the jt400.jar in folder
...\SDPShared\plugins\com.ibm.etools.iseries.toolbox_8.5.6109.v20210426_1434
\runtime. The classes in this jar have a major version of 45. Major version
45 is Java 1.0 and Java 1.1. Wow, was this really intentional?. I bet, if we
could get a jt400.jar for JTOpen 10.5 compiled with a target of Java 8, then
the problem with the pcml exception would not occur. When downloading the
JTOpen from sourceforge the zip file contains a jt400.jar in a folders
java6, java8 and java9. I checked the jt400.jar in the java8 folder and
unfortunately it is not compiled with target Java 8. It is compiled with
target Java 5.
Frank
-----Ursprüngliche Nachricht-----
Von: WDSCI-L <wdsci-l-bounces@xxxxxxxxxxxxxxxxxx> Im Auftrag von Steve
Ferrell via WDSCI-L
Gesendet: Freitag, 17. September 2021 16:34
An: Rational Developer for IBM i <wdsci-l@xxxxxxxxxxxxxxxxxx>
Cc: Steve Ferrell <Steve.Ferrell@xxxxxxxxxxxxxxx>
Betreff: Re: [WDSCI-L] RDi 9.6 Fix Pack 11 and iSphere
Hi Frank and Mike,
It's likely the issue was caused by users who installed 9.6.0.10 (which was
a JVM update only) caching classes from Java Toolbox.
9.6.0.11 didn't update the JVM, but did update Java Toolbox. A JVM update
clears the cache. Future releases will only update Java Toolbox during a JVM
update.
I would suggest attempting a system reboot BEFORE changing the JVM setting.
A reboot may also clear the cache. Any user who WASN'T affected by the PCML
issue would NOT need to change the JVM setting.
Anyone interested in in joining the 6 week beta program can send me a
message in LinkedIN, or contact IBM Support.
Hope this helps!
Steve Ferrell
w. www.helpsystems.com
l. www.linkedin.com/in/steve-ferrell-rdi
-----Original Message-----
From: WDSCI-L <wdsci-l-bounces@xxxxxxxxxxxxxxxxxx> On Behalf Of Mike
Hockings
Sent: Friday, September 17, 2021 8:00 AM
To: Rational Developer for IBM i <wdsci-l@xxxxxxxxxxxxxxxxxx>
Subject: Re: [WDSCI-L] RDi 9.6 Fix Pack 11 and iSphere
External: Pause and review the sender's email address, any URLs before
clicking links, opening attachments, or following requests. When in doubt,
contact the Service Desk.
Hi Frank,
Yes, I figured it out and told Farzi about it so she could let you know. I
thought I should put it in the WDSC-L so that more folks might know and be
able to take corrective action as needed.
My hypothesis was that there was an bad entry in the shared classes cache in
the JVM to changing the setting just turns off using the cache. You can
also tinker at clearing the cache or naming it differently and see if the
issue comes back. Here is a link to the JVM parm
https://www.ibm.com/docs/en/sdk-java-technology/8?topic=options-xshareclasse
s
The only down-side of the setting is performance but this is unlikely to
affect small-scale interactive usage like RDI but could affect a large WAS
server for example.
I don't think that there is anything that the RDI team can directly do about
it and without a clear test-case to reliably cause the problem it is
unlikely that we could get the Java team to look into it. However
historically I have seen this sort of issue fixed by the next Java update,
when that will be, I don't know, sorry.
Hopefully this helps a bit with understanding the underlying issue.
As the HelpSystem folks may have said, they recommend all plugin developers
to get onboard with the Beta program so you have a preview of what is to
come with each release.
All the best, Mike
Mike Hockings, M.Eng., P.Eng.
DevOps for Enterprise
IBM Developer for z Systems and Power Systems Software Technical Support IBM
Canada Ltd. Laboratory hockings@xxxxxxxxxx voice 1-905-413-3199 T/L 313-3199
ITN 23133199
From: <fhildebrandt@xxxxxxxxxxxxxxx>
To: "'Rational Developer for IBM i'" <wdsci-l@xxxxxxxxxxxxxxxxxx>
Date: 2021/09/17 07:39 AM
Subject: [EXTERNAL] Re: [WDSCI-L] RDi 9.6 Fix Pack 11 and iSphere
Sent by: "WDSCI-L" <wdsci-l-bounces@xxxxxxxxxxxxxxxxxx>
Hi Mike,
Farzi from the RDi technical support team already pointed me to this.
On all affected systems we know this worked. In case of iSphere and in case
of CMOne NG too.
One of the users with this problem has a question. He asked "Do you have any
clue what other effect it is going to have, just in case I come across a
"difference" later?"
I have a question too.
When I informed Farzi, that this worked he asked me, if he can close the
ticket. Is this the permanent solution we have to apply on all affected
systems manually in the future or will IBM supply something else?
Frank
-----Ursprüngliche Nachricht-----
Von: WDSCI-L <wdsci-l-bounces@xxxxxxxxxxxxxxxxxx> Im Auftrag von Mike
Hockings
Gesendet: Donnerstag, 16. September 2021 21:01
An: Rational Developer for IBM i <wdsci-l@xxxxxxxxxxxxxxxxxx>
Betreff: Re: [WDSCI-L] RDi 9.6 Fix Pack 11 and iSphere
Hi Frank,
Edit the eclipse.ini in the RDI install directory and locate the line:
-Xshareclasses:name=IBMSDP_%u
then modify the line to be:
-Xshareclasses:none
and save the eclipse.ini then restart RDI.
Let me know if that fixes the iSphere search issue or not, thanks.
Mike Hockings, M.Eng., P.Eng.
DevOps for Enterprise
IBM Developer for z Systems and Power Systems Software Technical Support IBM
Canada Ltd. Laboratory hockings@xxxxxxxxxx voice 1-905-413-3199 T/L
313-3199
ITN 23133199
From: <fhildebrandt@xxxxxxxxxxxxxxx>
To: <wdsci-l@xxxxxxxxxxxxxxxxxx>
Date: 2021/09/16 07:35 AM
Subject: [EXTERNAL] [WDSCI-L] RDi 9.6 Fix Pack 11 and
iSphere
Sent by: "WDSCI-L" <wdsci-l-bounces@xxxxxxxxxxxxxxxxxx>
Hi,
if you are using iSphere you shouldn`t update your RDi 9.6 Installation to
fix pack 11. On some boxes with RDi 9.6 Fix Pack 11 we get a PCML exception,
if we use the iSphere source file search. On most of the boxes with RDi 9.6
Fix Pack 11 everything works fine. At the moment the problem is not
reproducable. We have opened a ticket at IBM to find a solution for this
problem
Regards
Frank Hildebrandt
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