Interfacing different JVM version

hello gurus,
quick question....
Will different JVM versions running concurrently will interfere with each other ( eg. mouse events, etc).
any response appreciated...thanks...@

No,
Each VM is it's own little world. There would be no interaction between them unless you specically wanted it. Even in that case GUI would behave as they should in each version.
Hope this helps.

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thank you
Jonu Joy

Hi
Will my system/performance be affected if my CI has a different java version compared to the version on the app servers
As per my knowledge it wont effect your sytem performance,you can still proceed with what you have now but its better to have same JAVA version
Regards
Uday

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Can someone please verify the following quote?
"Serialization between JVMs is not compatible, meaning that something serialized by code under 1.3.1 won't be deserializeable under 1.2.2. You might be ok for some
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So are you saying that as long as the class does not change, then it does not matter which version of JVM you are using?
I have looked through the serialization documentation and the only thing I read that seemed to indicate potential problems for serialization is when the class has a change on one side or the other. This seems to match what you are saying. Is that what you are saying?
That is not quite correct.
As long as the serialVersionUID of the serialized
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How can I change the language interface of Firefox 4 Beta to English (on Swedish OS)? Can only find different language versions for 3.6.8.

How can I permanently change the language interface of Firefox 4 Beta to English?
Computer is running on Swedish Windows XP.
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Hello,
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Yuli

Communication between different JVMs

Hallo,
is there a simple way, to exchange data between different java sessions? At the moment I store the needed data to a table and load it in my java procedures when ever I need them.
But because this data is temporary, it wouldn't really be necessary to store the data. It's just for communication between the different JVMs. Is there an other way to do this, too?
Thanks, Christian

Christian, I may have misunderstood your question, but, until java version 1.4, the only way for different JVMs to communicate was via sockets, or secondary storage (the file system -- which includes databases).
In java version 5.0 (previously version 1.5), there is a new feature known as class data sharing.
But since you posted to the "Database >> JVM" forum, I can't help thinking that you are referring to different database JVMs. Is that correct? In any case, sockets and secondary storage are your only options there as well.
Good Luck,
Avi.

JVM versions

If JVM versions are different then is there any impact on execution?

DrClap wrote:
Definitely maybe. You can believe this.I can absolutely confirm that. I'm 100% sure that maybe it does.

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Hi,
I was wondering, if I serialize an object on one JVM, will it deserialize correctly on a different JVM?
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I need to be able to do get the java version running in windows. The application itself is running in a different JVM (installAnywhere) so System.getProperties("java.version") does NOT work. I essentially need to get the same java version as reported by java -version from a command prompt.
Thanks for any help. I'm beginning to think it's not possible.

Thanks guys for the responses.
I have tried:
BufferedInputStream bis = new
BufferedInputStream(Runtime.getRuntime().exec("cmd.exe
/c java -version").getInputStream());
bis.available() = 0;
Doesn't seem to work. Either it doesn't work or I'm
doing something wrong.
Message was edited by:
vandangoBecause you are trying to assign a value to a method:
bis.available() = 0;
You can't do that.
What you may have meant to try was something along the lines of:
(I have not tested this, so it probably won't work ... I am just demonstrating the concept that you were missing above.)
import java.io.*;
class Test {
     public static void main(String[] argv) throws Exception {
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Starting a specific managed server with a different JVM.

Hello!
We have a Weblogic (11g 10.3.6.0) Domain created using the Configuration Wizard (WL_HOME/common/bin/config.sh). This domain was configured to use Oracle JRockit JVM. So, all managed servers in this domain uses JRockit. But for some test/P.O.C reasons we want to configure a specific managed server (in this same domain) to run on top of Sun HotSpot. We need do this without change the domain's default JVM (Oracle JRockit).
Is it possible?
I tried many ways but now I'm a bit confused. Reading the DOC [1] I tried to change the setDomainEnv.sh to set the JAVA_VENDOR ('Sun') and JAVA_HOME (/path/to/sun/jdk). But in this way you change the JVM for whole Domain.
If I change the Server's configuration using AdminConsole (ServerX>Configuration>Server Start page) and them start it using AdminConsole or NodeManager, it (partially) works. I mean, the server starts using Sun Hotspot JVM, but if you look at the command process used to statrt it, you can see something strange.
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Thanks.
[1] http://docs.oracle.com/cd/E23943_01/web.1111/e13708/overview.htm

Hi,
You can use a different JVM for specific managed server by editing parameters in server start tab from console. But if you want to change java.class.path and java.library.path with references from Oracle JRockit JVM to JDK hotspot, then you have to create separate commonenv.sh,setdomainenv.sh and startWeblogic.sh file for your managed server.
java.class.path and java.library.path env variables generally generates from commonenv.sh file.
Regards,
Kishore

How to Launch an Integration Builder under two different java versions

How to Launch an Integration Builder under two different java versions     1
1. Situation     2
2. How To Do     2
2.1 jre preparation     2
2.2 Put them into the system     2
2.3 Execute a Java Web Start under jre 1.4.x version     3
2.4 Change Java Runtime Versions     3
2.5 Launch an Integration Builder     6
1. Situation
OS: windows 2000 pro English
Java version: jdk 1.5.x was already installed. (Its not permitted to change.)
I dont have any authorization to install any software on the PC.
But I need to use an Integration Builder.
I already knew URLs of an Integration Builder (http://<hostname>:50000/rep/start/repository.jnlp).
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At this moment, an Integration Builder (XI 3.0) can be launch under jre 1.4.x environment (on windows).
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I download j2re-1_4_2_10-windows-i586-p.exe from http://java.sun.com/j2se/1.4.2/download.html
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I pasted j2re1.4.2_10 folder from my USB into the windows 2000 pro system.
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c:\j2re1.4.2_10\javaws\javaws.exe
c:\Program Files\Java\jdk1.5.0_05\bin\javaws.exe
c:\Program Files\Java\jdk1.5.0_05\jre\bin\javaws.exe
c:\Program Files\Java\jre1.5.0_05\bin\javaws.exe
2.3 Execute a Java Web Start under jre 1.4.x version
I executed c:\j2re1.4.2_10\javaws\javaws.exe .
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Go to File-> Preferences -> Java
As you can see, it indicates 1.5 version.
Click [FIND] button.
Click [NEXT] button.
Click the j2re1.4.2_10 folder.
Click [NEXT] button.
A JRE Finder is able to find javaw.exe automatically. Or you can indicate C:\j2re1.4.2_10\bin\javaw.exe directly.
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Click [OK] button.
Well, in the General tab, I selected None for Proxies.
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In the Location field, I typed the URL of an Integration Builder jnlp.
http://<hostname>:50000/rep/start/repository.jnlp
SAP Integration Builder comes up inside Applications area.
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[PDF file location] with screenshots
http://SDN.mobilian.org/SDN/How2LaunchIB.rar
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SDN Search Widget
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Oracle Sql Query issue Running on Different DB Version

Hello All,
I have come into situation where we are pruning sql queries on different DB version of Oracle and have performance issue. Let me tell you in brief and i really appreciate for your prompt response as its very imperative stuff.
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Message was edited by:
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Hi,
We are currently using standard costing variant PPC1 and costing version 1 to mark and release the standard costs. However when we try to recost the material cost due to price changes, system does not allow to mark & release revised standard cost if we try to mark & release on same day. pls note standard cost estimate is already released for the month. And we do not want to delete existing standard cost estimate. Instead we want to explore other options. We are using 4.7.
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;o)
V.V.

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Deploying Sun JRE (Native Plug-in) for Windows Clients in Oracle E-Business Suite Release 12 [ID 393931.1]
Oracle Jinitiator and Sun JRE/JPI Support for Oracle Forms Applications [ID 555720.1]
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Edited by: user8536050 on Jan 18, 2010 1:44 AM

Hi,
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Interfacing different JVM version

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