The JREs used for HTTP admin servers will be updated. It is a matter of
testing and ensuring all the applications running in the servers work
under the specified JRE.
For HTTP Admin servers only, if an initial JRE is not installed, the next
lowest one is attempted to be used. For example, if an admin server
initially requested Java 7 32bit, and it is not installed, then the next
lowest JRE will be used, JRE 6 32bit.
I do not think you should worry about it. We are in the process of
updating the initial JRE to use for the various servers.
From: "Steinmetz, Paul" <PSteinmetz@xxxxxxxxxx>
To: "'Midrange Systems Technical Discussion'"
<midrange-l@xxxxxxxxxxxx>
Date: 04/19/2017 02:15 PM
Subject: Multiple JDK versions , JAVA_HOME environment varible not
being used
Sent by: "MIDRANGE-L" <midrange-l-bounces@xxxxxxxxxxxx>
1) On a V7R1 system, JDK 5,6,7,8 installed, with no *SYS Java_Home, HTTP
admin instance uses 3 different JDKs.
From WRKJVMJOB, 5=Work with
ADMIN1 JDK 1.6.0 32 bit
ADMIN2 JDK 1.7.0 64 bit
ADMIN4 JDK 1.7.0 32 bit
ADMIN5 JDK 1.6.0 32 bit
ADMIN3 JDK 1.6.0 32 bit
On a sandbox V7R1 system, JDK 5,6,7,8 installed, with a *SYS Java_Home
'/QOpenSys/QIBM/ProdData/JavaVM/jdk80/32bit' , HTTP admin instance uses
same 3 different JDKs.
From WRKJVMJOB, 5=Work with
ADMIN1 JDK 1.6.0 32 bit
ADMIN2 JDK 1.7.0 64 bit
ADMIN4 JDK 1.7.0 32 bit
ADMIN5 JDK 1.6.0 32 bit
ADMIN3 JDK 1.6.0 32 bit
This implies that the various HTTP Admin jobs are all hardcoded to use
various JDKs, or possibly the Java_Home variable is not WAD.
Why would IBM do this?
2) Also, from the links Kevin provided, notice the pecking order
differences for the various releases, if multiple JDKs installed.
V7R1 - JDK 6,5,7,4
V7R2 - JDK 7.1, 7.0, 6, 8
V7R3 - JDK 8, 7.1, 7.0
3) IBM i OS default JDKs - this is the JDK used if the JAVA_HOME
environment is NOT configured system-wide or at the job scope.
IBM i 5.4 - Classic 1.4.2 64 bit
IBM i 6.1 - IT4J 5.0 32 bit
IBM i 7.1 - IT4J 6.0 32 bit
IBM i 7.2 - IT4J 7.1 32 bit
IBM i 7.3 - IT4J 8.0 32 bit
4) Anyone on V7R2 or V7R3 running 5722IP1 V5R3M0 IBM Infoprint
Server for iSeries.
I believe this is a skip/shipped product, V5R3 still the latest.
What version JDK to you see being used for IP1?
5) Appears all my Java apps are currently hardcoded.
Paul
-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Rob
Berendt
Sent: Wednesday, April 19, 2017 12:40 PM
To: Midrange Systems Technical Discussion
Subject: RE: Attn 7.1 users who plan on staying there for an indefinite
time
I wonder why 7.3 IBM Navigator for i chooses 7.1 jdk by setting a job
JAVA_HOME while everything else uses 8, including Domino?
Rob Berendt
midrange.com
