JRE versions and Browsers and Applets

Is there a way to assign a particular JRE version to a browser session through JavaScript or VBScript programatically so that I can run applets from different sources which need different JREs?
Basically I will have 2 links/buttons which will call two separate javascript methods to open two different browser windows to run two different applets running under different JREs
However when I start IE each 'session' of IE is assigned to one JRE, any way to overcome this?
TIA,
Raj

Martin thanks for your inputs
I am sourcing html pages from multiple sites and the html/applet tag is generated by those websites.
They do have the applet tag pointing to proper class-id of the java plugin.
However, the problem is with IE one family(session) of browsers are attached to one version of JRE plugin.
Here 'session' means: you open a browser and from within that browser you do go from a link or javascript etc. to another browser they are in same 'session'
I am working on dynamically setting JRE plugin version to different browsers.
Not sure I made it clear or confusing : )
Thanks

Similar Messages

JRE 6 freeze browsers and Java Control Panel Applet stops working!

Hello,
this is the second time I got this problem with Java JRE 6 ! First one was a month or two ago:
I have Java JRE 6 update 20 installed on a Windows 7 64bit ultimate. It was working...much time ago...then i found my browser (firefox, google chrome or IE8) was freezing when I open java application or test pages. I tried uninstalling it, cleaning the system with Revo Uninstaller, or CCleaner or JavaRA and reinstalling with no luck. The other problem is the same that user Mass8 had (http://forums.sun.com/thread.jspa?threadID=5372196&start=15&tstart=0)
...my java control panel applet is not working and give me this:
http://www.iouppo.com/lite/pics/df9b61008b5bf9de61a13d8bfa3ddad1.jpg
I tried disabling UAC, running JRE, starting Win7 in safe mode with network...but browser always freeze. It's not a true freeze, with CPU busy at 100% (cpu stays in idle) but it seems to wait for something. It's not a problem with video card driver on my machine, because I can start java control panel from command prompt...and without the noddraw switch, using this command:
javaw -Xbootclasspath/a:..\lib\deploy.jar -Duser.home="%HOMEDRIVE%%HOMEPATH%" com.sun.deploy.panel.ControlPanel
This was the description of my first time.....then I replaced my system with an Acronis image...and I used the system for sometimes....and Java was working until 3-4 days ago! So I did another image of the system with all things working.
Then this morning...I tried the java test page.....and surprise! It's not working anymore!
In these days I think I only disabled UAC and Account virtualization....maybe JAVA saves things there...and then when I disabled UAC (Windows7 deleted those folders and files) it can't find there anymore???? Who can help me?
I don't want to restore my image every month!
My system is 100% virus free and from the last image restoration I didn't visit suspicious sites and so on....I have antivirus and antispyware software...all is perfectly CLEAN. Any ideas or things to try?

I'm beginning to think it's something related to Hybernation after using JAVA....I'm using it very often...and if I use it...and I suspect Java is KO...i try control panel and it doesn't works....then I try with browser and it freeze (or keep waiting...and i can only force to close it)
THEN,
when I reboot my system I get this window
http://www.iouppo.com/lite/pics/09501eb799c165bb25ece8fd3261e41c.jpg
suggesting me to rename the folder C:\Program in C:\Program1 ...and if i don't rename it...java will never work...instead if I allow it...Windows will fix it!......This until...the next hybernation....:(....
try to replicate this...maybe I found where is the problem..

Update application to run in newer versions and browsers

I have a graphing application that ran fine until later versions of Browsers and Flash Player.
It still runs in IE 7.0, although I had to install FP 10.
Are there lines of code I need to get it to run in Firefox and Safari? Both tell me to install Version 10 of FP, but it is installed. Won't run in Vista or Mac in Firefox.
You can see it at http://www.widman.biz/uploads/calc-grafico.html
or this attachment
I need to get this running.
thanks

I have a graphing application that ran fine until later versions of Browsers and Flash Player.
It still runs in IE 7.0, although I had to install FP 10.
Are there lines of code I need to get it to run in Firefox and Safari? Both tell me to install Version 10 of FP, but it is installed. Won't run in Vista or Mac in Firefox.
You can see it at http://www.widman.biz/uploads/calc-grafico.html
or this attachment
I need to get this running.
thanks

JRE version problem (XML Parsing)

Hi,
I posted a question earlier about an issue I'm having with an applet running in the Eclipse IDE but not in-browser. I have checked the JRE version for both and the browser is running 1.6.0_01 and the IDE is running 1.5.0_06. Now I could uninstall the former to force the browser to load the latter I believe but that doesn't solve the issue as I would need it to run on the newer JRE version.
So my question is, what would cause the following error to occur in a later version of the JRE?
Exception in thread "Thread-9" javax.xml.parsers.FactoryConfigurationError: Provider org.apache.xerces.jaxp.DocumentBuilderFactoryImpl not found
Thanks in advance,
Dan

It has nothing to do with new or old version of jre it has to do that the explorer jre (5) can not find the jar file it needs. It is looking for the class org.apache.xerces.jaxp.DocumentBuilderFactoryImpl but it can not find it.
In you Eclipse you do have this jar that's why it is running, just copy the jar to the lib or lib/ext folder in the jre 5 and everything should work.

Multiple jre versions using same cache location

Hi,
i searched the web but couldnt find an answer.
I have a Terminal Server deployment with various installed jre Versions (1.6x and 1.7x) on the same Server as well as on different Server Silo Setups.
But for all Servers i configured the Cache Location to H:\Java-Cache (Homefolder of the user) in the deployment.properties file.
1. are there any Problems to expect when using the same Cache Folder for many different jre Versions (jre 6/7/8) ? Any knows issues about that ?
2. is it supported to share the same cache Location (for example D:\java-cache) for many users ? i cannot find ony official KB or Oracle Note about this.
There are a few Blog Article out there which describe to configure the Cache Location on a terminal Server to a local location like D:\java-cache shared by
many users. Does it depent on the Java webstart application if tha works well ?
Thanks a lot,
Marcus

Hi Tyler,
In my opinion, you could go ahead with first option - have multiple JRE's and maintain the environment variables accordingly.
This should not be a problem as the envrionment variable would take care of which JRE is used. Also as you have only another ABAP system on the same server, the other older JRE would only be required during the SAPInst operations. Non-existence of a Java system makes things simpler here
Regards,
Srikishan

I have been getting java.lang.ClassNotFoundException: ZeroApplet.class and java.lang.ClassNotFoundException: JavaToJS.class crashes with JRE version 1.6.0_26-b03-384-10M3425 VM executing a Java Applet. Is Apple aware of this problem? No longer supported?

My web page uses a Java Applet to allow my visitors to replay chess games; the Chess Viewer Deluxe applet was written by Nikolai Pilafov some time ago and has been working properly for some time (until recently). I don't monitor this part of my site regularly so I am not sure when it began to fail. On his web site [http://chesstuff.blogspot.com/2008/11/chess-viewer-deluxe.html] he has a link to check LiveConnect object functionality (which fails for OBJECT tags). His recommendation is to "seek platform specific support which might be available from the JRE developers for your platform".
I have been getting java.lang.ClassNotFoundException: ZeroApplet.class and java.lang.ClassNotFoundException: JavaToJS.class crashes with JRE version 1.6.0_26-b03-384-10M3425 VM executing a Java Applet. Until I checked the LiveConnect object functionality, I was unable to identify the source of the console error messages. This does seem to be the smoking gun.
Is Apple aware of this problem? Are these classes no longer supported? Has anyone else had this problem? You can attempt to recreate the problem locally by going to my web page: http://donsmallidge.com/DonSmallidgeChess.html
Thanks in advance for any help you can provide!
Abbreviated Java Console output:
Java Plug-in 1.6.0_26
Using JRE version 1.6.0_26-b03-384-10M3425 Java HotSpot(TM) 64-Bit Server VM
load: class ZeroApplet.class not found.
java.lang.ClassNotFoundException: ZeroApplet.class
    at sun.applet.AppletClassLoader.findClass(AppletClassLoader.java:211)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
    at sun.applet.AppletClassLoader.loadClass(AppletClassLoader.java:144)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
    at sun.applet.AppletClassLoader.loadCode(AppletClassLoader.java:662)
    at sun.applet.AppletPanel.createApplet(AppletPanel.java:807)
    at sun.plugin.AppletViewer.createApplet(AppletViewer.java:2389)
    at sun.applet.AppletPanel.runLoader(AppletPanel.java:714)
    at sun.applet.AppletPanel.run(AppletPanel.java:368)
    at java.lang.Thread.run(Thread.java:680)
load: class JavaToJS.class not found.
java.lang.ClassNotFoundException: JavaToJS.class
    at sun.applet.AppletClassLoader.findClass(AppletClassLoader.java:211)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
    at sun.applet.AppletClassLoader.loadClass(AppletClassLoader.java:144)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
    at sun.applet.AppletClassLoader.loadCode(AppletClassLoader.java:662)
    at sun.applet.AppletPanel.createApplet(AppletPanel.java:807)
    at sun.plugin.AppletViewer.createApplet(AppletViewer.java:2389)
    at sun.applet.AppletPanel.runLoader(AppletPanel.java:714)
    at sun.applet.AppletPanel.run(AppletPanel.java:368)
    at java.lang.Thread.run(Thread.java:680)

I just went up to check the LiveConnect object functionality page AND IT WORKED THIS TIME! I must confess, this is very mysterious. I will do some more checking and reply here if I can determine why it is working now (and more importantly, why it didn't work before).

Servlet/Applet Communication and JRE Version

Hey all,
I have an applet that sends objects back and forth to a servlet. I have heard that there can be issues if the applet and servlet are run under different versions of java, and right now, the applet works from some machines but not others (I've only tested on PCs so far). I posted a question similar to this a month or two ago, and someone suggested I use UIDs. Can anyone give me some detailed information on how I would do this, or something similar to ensure that any version of Java on someone's machine will work ok, or a link to some helpful info? Thanks.

Thanks mchan0! I think this will be very helpful.

Java Control Panel wont open at all and any Java Applets crash web browsers

Hello,
I recently installed a fresh fully updated copy of Windows 7 Home Premium 64 bit, and I have not for the life of me been able to get Java working at all. Java version is the latest JRE 6U31. I only have Internet Explorer 9 installed but I doubt it is a browser issue since I cannot even open the Java control panel. I have tried using the 32 bit version of Java, and the 64 bit. Anytime I try to open the Java control panel with either 32 bit or 64 bit, I get an error message (click link below to view error message):
http://i65.photobucket.com/albums/h204/gobigjeff/Java%20Error/javaerror.png
I can only bring up the Java Control Panel using the command “javaws –viewer” . Anytime I try to load a web page with a Java applet in either 64 bit or 32 bit, it freezes and crashes. I am running Internet Explorer 9 and have tried both the 32 bit and 64 bit browser versions. I saw Java’s recommendation to only use the 32 bit version so I have mainly been trying to get the 32 bit version working 1st, with no success. I have tried ALL of the following steps, and have done some exhaustive research on this problem. It seems others have had this issue as well, with no solution to be found:
•     Uninstalled and reinstalled only Java 32 bit JRE 6u31 multiple times (Used Javara and reg cleaner to remove all old Java traces)
•     Uninstalled and reinstalled only Java 64 bit JRE 6u31 (Used Javara and reg cleaner to remove all old Java traces)
•     Uninstalled and reinstalled bit JRE 7 (Used Javara and reg cleaner to remove all old Java traces)
•     Used SFC /scannow in safe mode to verify Windows files
•     Ran spyware and virus scan with no issues detected
•     Added all java processes to windows firewall
I am out of solutions here. If anyone has had this problem with Java or knows what I need to do to fix the problem your advice would be greatly appreciated. I don’t think reinstalling windows is the solution because this is a fresh install.
Edited by: 918650 on Mar 4, 2012 1:16 PM

I figured it out. I changed the installation folder to C:/Java and it finally worked!

Use 2 jre versions (Java 5.x and Java 6.x) on diferent web pages.

On windows XP SP3.
I need use on internet explorer 7 and firefox 3, 2 differents JRE versions for two diferent servers
example:
- "www.site1.com" needs java 5.x (don't work with java 6.x)
- "www.site2.com" needs java 6.x (don't work with java 5.x)
If i have installed both versions, internet explorer and firefox even uses java 6.x, and i only can use java 5.x if uninstall java 6.x
I need use to default use: java 6.x; except for "www.site1.com" that i need use java 5.x
How can use both JRE versions?

Questions: Do you plan to use the same web browser? The earlier applet running on JRE 1.5.x cannot run on 1.6 ? Sun puts forth a lot of effort in attempt to ensure that applets are forwards compatible.

General Question about JRE - Versions and backward compatibility etc

Could someone maybe help me with this query?
I've got a group of network users who use a total of four java applications which I am told require different versions of the Java Runtime Environment to run.
Is it therefore possible to have muliple versions of the RTE installed on one user machine to make all applications work at once or is it simply a case of having to have only one version of the JRE.
I'm talking mainly about in house applications so I guess if some of them are incompatible with the latest JRE then the answer might be to find out what the problem is and fix the application so it works in the lates jre - or am I missing something?

Hello,
First of all, it is possible to keep several JRE installed in Windows. For example, my PC has JRE 1.3.1.8, 1.4.0.1, 1.4.2.6.
Second. A tecnology exists to cause a Windowst to run a specific JRE for a specific Java applet. Please see the text below.
HTML Applet Configuration
� The standard (Internet) method of calling Java Runtime when using a Java Applet is to use an Applet tag within the HTML file itself specifying the applet details (example below). This tries to attach itself to Microsoft Java Runtime registry CLSID as detailed above.
<applet code=Applet1.class width="200" height="200">
Your browser does not support the <code>applet</code> tag.
</applet>
� When the above call is made either, a) the applet will load in the Microsoft Java Runtime, b) the applet will load in a particular Sun Java Runtime as it�s being redirected or c) the applet won�t load at all as Microsoft Java Runtime isn�t installed and Sun Java isn�t set as default.
� The above can be uncontrolled as to what version of Java (if any) is actually used to launch an applet so have an alternative solution is to us the Object tag in place of the Applet tag. It�s only suitable for Internet Explorer in an internal, Intranet environment but should be ideal for us.
� By replacing the Applet HTML tag with the Object tag when loading an applet you can specify in the tag either to use the latest installed version of Sun Java or a specific version by putting it�s CLSID in the list. (example below.)
<OBJECT
classid="clsid:CAFEEFAC-0014-0002-0006-ABCDEFFEDCBB"
width="200" height="200">
<PARAM name="code" value="Applet1.class">
</OBJECT>
� The advantage in the above approach is we can install a specific version of Java, i.e. 1.4.2.06 that doesn�t redirect the Microsoft Java Runtime so won�t effect other applications, and we can be safe in the knowledge that even if we install a newer version of Java on a machine that has 1.4.2.06 we won�t have any backwards compatibility problems.
� The Object tag is an Internet Explorer only solution, but could be scaled, as to load a different version of Java you specify a different CLSID, whether that�s one of the versions of Sun Java or Microsoft Java or you can specify a CLSID that covers the latest installed version of Sun Java if you don�t want to tie the application to a specific version.
Further details on the use of the Applet and Object tags can be found on the Sun website below so they may be of use if the HTML code that calls the Java applet can be easily changed to support our requirements.
http://java.sun.com/j2se/1.5.0/docs/guide/plugin/developer_guide/using_tags.html
http://java.sun.com/products/plugin/versions.html

How to switch between jre 1.5.0 and 1.4.2 when running applet in browser?

Hi,
I have JRE 1.5.0_05 and 1.4.2_04 installed and currently applet in browser is always run under jre 1.5. How to run the applet under jre 1.4.2 in browser?
Thanks a lot

Hi,
Thanks for the info. I was thinking that the note didn't work for me, apparently I didn't use the conventional APPLET tag.
Is there other way to switch JRE if I'm not using APPLET tag?

IE 11 is crashing running a scenario whereas its working fine on earlier versions of IE and other browsers

Hi,
we have A CRM application having some customer related scenarios, like create customer, accounts,address etc.
while, when we browse through the Create Customer scenario from lets say, page1 to page2 the browser is getting crashed.
the same scenario is working fine in all earlier versions of IE and other browsers like chorome.
below is the Crash dump analysis and Event viewer logs. appreciate the help provided
Event Viewer:
Faulting application name: IEXPLORE.EXE, version: 11.0.9600.17207, time stamp: 0x53a20c50
Faulting module name: MSHTML.dll, version: 11.0.9600.17207, time stamp: 0x53a22b71
Exception code: 0xc0000005
Fault offset: 0x000b4642
Faulting process id: 0x2140
Faulting application start time: 0x01cfd3d7a8a61dfc
Faulting application path: C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
Faulting module path: C:\windows\system32\MSHTML.dll
Report Id: 177f4288-3fcb-11e4-9783-d4bed98dc920
Crash Dump:
0:005:x86> !analyze -v
*                        Exception Analysis
*** ERROR: Symbol file could not be found. Defaulted to export symbols for IPSBHO.DLL -
*** ERROR: Symbol file could not be found. Defaulted to export symbols for Scxpx86.DLL -
*** ERROR: Symbol file could not be found. Defaulted to export symbols for jvm.dll -
*** WARNING: Unable to verify checksum for atidxx32.dll
*** ERROR: Symbol file could not be found. Defaulted to export symbols for atidxx32.dll -
FAULTING_IP:
wow64cpu!CpupReturnFromSimulatedCode+0
7536271e 6744            inc     esp
EXCEPTION_RECORD: ffffffffffffffff -- (.exr 0xffffffffffffffff)
ExceptionAddress: 000000007536271e (wow64cpu!CpupReturnFromSimulatedCode)
   ExceptionCode: c0000005 (Access violation)
ExceptionFlags: 00000000
NumberParameters: 2
   Parameter[0]: 0000000000000000
   Parameter[1]: 0000000000000000
Attempt to read from address 0000000000000000
CONTEXT: 0000000000000000 -- (.cxr 0x0;r)
eax=00000000 ebx=0331dd60 ecx=0e6bfa30 edx=132d7f38 esi=fffffffe edi=00000000
eip=66d94642 esp=0400b0d8 ebp=0400b394 iopl=0         nv up ei pl nz na po nc
cs=0023 ss=002b ds=002b es=002b fs=0053 gs=002b             efl=00010202
MSHTML!CElement::ComputeFormatsVirtual+0x13d:
66d94642 f7809c01000000080000 test dword ptr [eax+19Ch],800h ds:002b:0000019c=????????
FAULTING_THREAD: 0000000000002e38
PROCESS_NAME: IEXPLORE.EXE
ERROR_CODE: (NTSTATUS) 0xc0000005 - The instruction at 0x%08lx referenced memory at 0x%08lx. The memory could not be %s.
EXCEPTION_CODE: (NTSTATUS) 0xc0000005 - The instruction at 0x%08lx referenced memory at 0x%08lx. The memory could not be %s.
EXCEPTION_PARAMETER1: 0000000000000000
EXCEPTION_PARAMETER2: 0000000000000000
READ_ADDRESS: 0000000000000000
FOLLOWUP_IP:
wow64cpu!CpupReturnFromSimulatedCode+0
7536271e 6744            inc     esp
NTGLOBALFLAG: 0
APPLICATION_VERIFIER_FLAGS: 0
CHKIMG_EXTENSION: !chkimg -lo 50 -d !KERNEL32
    76fc3490-76fc3496 7 bytes - KERNEL32!FreeLibraryStub+8
[ 90 90 90 90 90 8b ff:e9 95 cc 69 8d eb f9 ]
7 errors : !KERNEL32 (76fc3490-76fc3496)
APP: iexplore.exe
ANALYSIS_VERSION: 6.3.9600.16384 (debuggers(dbg).130821-1623) amd64fre
LAST_CONTROL_TRANSFER: from 0000000067369b63 to 0000000066d94642
ADDITIONAL_DEBUG_TEXT: Followup set based on attribute [Is_ChosenCrashFollowupThread] from Frame:[0] on thread:[PSEUDO_THREAD]
BUGCHECK_STR: APPLICATION_FAULT_MEMORY_CORRUPTION_NULL_POINTER_READ_ZEROED_STACK_LARGE
PRIMARY_PROBLEM_CLASS: MEMORY_CORRUPTION_LARGE
DEFAULT_BUCKET_ID: MEMORY_CORRUPTION_LARGE
STACK_TEXT:
00000000`00000000 00000000`00000000 memory_corruption!KERNEL32+0x0
SYMBOL_STACK_INDEX: 0
SYMBOL_NAME: memory_corruption!KERNEL32
FOLLOWUP_NAME: MachineOwner
MODULE_NAME: memory_corruption
DEBUG_FLR_IMAGE_TIMESTAMP: 0
STACK_COMMAND: ** Pseudo Context ** ; kb
FAILURE_BUCKET_ID: MEMORY_CORRUPTION_LARGE_c0000005_memory_corruption!KERNEL32
BUCKET_ID: X64_APPLICATION_FAULT_MEMORY_CORRUPTION_NULL_POINTER_READ_ZEROED_STACK_LARGE_memory_corruption!KERNEL32
IMAGE_NAME: memory_corruption
ANALYSIS_SOURCE: UM
FAILURE_ID_HASH_STRING: um:memory_corruption_large_c0000005_memory_corruption!kernel32
FAILURE_ID_HASH: {a0ab76e6-7b43-6c55-901f-3d438fac77d6}
Followup: MachineOwner
thanks

Hi,
There are some symbol file errors in the analyzed result, please upload the dump file to a public location such as OneDrive, then paste the dowload link here.
Meanwhile, what about other webpages? please test whether this issue happens in other IE 11 or similiar systems, check whether this is a common issue or a specific issue.
Keep latest Windows Updates especially for IE updates.
Test IE in no add-ons mode, if issue disappears, then it could be cauesd by an incompatible add-on
Type "internet" in start menu--search box, click "Internet Explorer (No add-ons)"
Yolanda Zhu
TechNet Community Support

Specific version of jre in .jnlp file and downloading from local server

Hi,
I have couple of questions regarding the specific version of jre in Java WebStart.
1) I have specified the jre version in .jnlp file as below.
<resources>
<j2se version="1.3.1_02"/>
</resources>
When I saw the File/Preferences/Java of Java WebStart installation, there is an entry with the "Product Version" value as 1.3.1_02 as I installed jre also before launching my application. Still it complains as,
The application has requested a version of the Java 2 platform (JRE) that is currently not locally installed. Java Web Start was unable to automatically download and install the requested version. The JRE version must be installed manually.
Error Code 11 (11 Could not locate requested version) returned from server when accessing resource: (http://java.sun.com/products/autodl/j2se, 1.3.1_02)
When it is there already, why it is trying to get from the Sun's site.
2) I want Java WebStart to download the specified version of jre from my local server, I specified this in the following way,
<resources os="Windows">
<j2se version="1.3.1_02" href="http://host:9095/j2re-1_3_1_02-win.exe"/>
</resource>
I got the error saying,
Bad MIME type returned from server when accessing resource: (http://host/j2re-1_3_1_02-win.exe, 1.3.1_02) - application/octet-stream. where host is my server name. What I need to do here.
Can I have multiple resource tags one for each os.
Help is highly appreciated.
Thanks,
Sreedhar.

Hi Sreedhar,
There are some other useful threads in this forum on this topic:
the "Automatically Installing the IBM JRE 1.2.2" thread has tips from somebody who's put together auto-download of JREs from his own web site:
http://forum.java.sun.com/thread.jsp?forum=38&thread=71061
Also, the behavior of the j2se tag is discussed a little in the "Using a specific JRE" thread: http://forum.java.sun.com/thread.jsp?forum=38&thread=158075
The first step is to add an href attribute to your j2se tag. I was just experimenting with this this afternoon,
and it appears that unless that href is specified (even if it's the java.sun.com default autodl URL!) JWS will not properly check locally-installed 1.3.1 JREs. Once you include Sun's autodl URL as an href, JWS will at least properly enforce the product version among locally-installed JREs. Of course, Sun doesn't actually include 1.3.1 in its autodl section, so it won't download it for you, but it will enable checking of the JREs already installed.
The second step is downloading JREs from your own web site, which is more complicated and explained better by other messages in the forum. But basically, JWS is not simply looking for a .exe installer for a particular JRE. It hits the webserver with a query and expects the webserver to give it back an installer's JNLP file. Look at the referenced threads for more details.
Jim

Chat is not available for Gmail for Firefox 14.0.1. Other browsers and lower version of Firefox works.

I have installed the Firefox 14.0.1 version. Since then the Chat for Gmail is not popping up. I checked with other internet browsers and the chat works perfectly on Gmail.
Is there any special plug in needed for this version?
Is this a bug in the new Firefox version?
What is needed to get the chat on Gmail enabled for this version.
Regards,
Anirban Moitra

First, update to Firefox 15.0.1. [[Update Firefox to the latest version]].
After that, try to read [[Websites look wrong or appear differently than they should]]

J2EE and related J2SE/JRE versions

I understand the difference between J2EE and J2SE/SDK/JDK, and JRE. However, I'm having trouble identifying what version of SDK each of the J2EE versions uses. Maybe they match up.
For example, if I have an old project someone says was built with J2EE 1.3 SDK, does that use J2SE/JRE 1.3? Does Java EE 5 use Java 1.5? 1.6? 1.4? (For example, if I'm setting Eclipse Compiler Compliance Level for a J2EE 1.3 project, what should it be?)

is there a way for me to know what Java version that would have been or could have been compiled against?No.
Edit: Slight clarification - the class files in the application contain a magic number that corresponds with the compiler target - so for any given class file you can determine what JRE was targeted at compile time. This can be different from the compiler version. Different classes in the same application may have been targeted to different JRE versions.
Are there any versions of Java that it could not be compiled against?No.
what version of Java does the Application Server on which this will be deployed support.The Application Server will be running on a JRE corresponding to a particular Java release. That JRE will support all versions of Java prior to the release. Code compiled on subsequent versions of Java can, if suitably written, be targeted to run on that version of the JRE and (depending on versions) may not need specific targeting to do so. Whether they in fact work or not depends entirely on what library calls they make.
What's the business requirement that drives this request?
Edited by: dcminter on 03-Mar-2010 18:54

JRE versions and Browsers and Applets

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