=============================
1.4.1 Multiversioning - JPI IE browser collision
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Tested Using Internet Explorer

Install 1.4.1_04b1 JDK/JRE to default install dir
Install 1.4.1 FCS JDK/JRE to default install dir


Open Java Plugin Control Panel
- Choose Start>Settings>Control Panel>Java Plugin control panel

  - Choose About Tab - shows last installed version i.e. 1.4.1 fcs 
  i.e. downgrade version
  Should it retain the latest 1.4.1_04 version ?? or is this expected? (now that 1.4.1+ are sharing the same jpicpl32.cpl)

  - Choose Advanced Tab>Java Runtime Environment>Use Java-Plugin Default

- First, run a 1.4.1 fcs specific applet using IE browser
C:\j2sdk1.4.1\demo\plugin\applets\Clock\example1.html
	Java(TM) Plug-in: Version 1.4.1
	Using JRE version 1.4.1 Java HotSpot(TM) Client VM

- Secondly, run another 1.4.1_04 specific applet in same browser window
C:\j2sdk1.4.1_04\demo\plugin\applets\Clock\example1.html

The following warning prompt shows the collision
========
Java Plug-in Warning prompt:

Applet(s) in this HTML page requires a version of java different from the one 
the browser is currently using. In order to run the 
applet(s) in this HTML page, a new browser session is required, press 'Yes' to 
start a new browser session

> Choose Yes button on this prompt to proceed
========

Successfully spawns a new IE process (new browser window) as expected, but the applet in the "old" browser session contains a typo: 
"Java Plug-in detected JRE collission"
Note: collision is mis-spelt

	Java(TM) Plug-in: Version 1.4.1_04
	Using JRE version 1.4.1_04 Java HotSpot(TM) Client VM





  xxxxx@xxxxx   2003-07-09

N/A

  xxxxx@xxxxx   2003-10-08

The bug shows up in 1.4.1_04, 1.4.2_01, and Tiger (all builds.)

I'll fix in the next update releases, I've sent mail to the plugin team to
get them to fix this in Tiger.

The prompt  "Applet(s) in this HTML page requires a version of java different from the one the browser is currently using.  In order to run the applet(s) in this HTMLpage, a new browser session is required, press 'Yes' to start a new browser session" appears but with no 'Yes' button to press.  What do I do?

Java plug-in detected jre collision ( Firefox 2.0.0.6 ) Java applet

[b]Mozilla Firefox error Java JRE applet code[/b]

[b]Finally after two days I got ( Java applet ) working; really crazy one![/b]

[i]Two days of frustration[/i] In the end a really easy Fix but no-one can tell you what is wrong!!
I will place this Helping note in this forum sure this will help someone!! 
Original Reference Link: http://forums.java.net/jive/message.jspa?messageID=234129#234129

Search all over Googles to get it fixed no luck! Why not one forum gives this resold too fix this problem??

Tried everything reinstalled [b]JRE 1.4.2[/b] then [b]JRE 1.5.[/b] then [b]JRE1.6.1[/b] nothing worked!
Then I started playing in the Firefox plugin directory removed all plugin's and copied them back one by one thats how I found the bad file creating the 

whole problem!
All I ended up doing is I removed this file in the Firefox plugin Dir ([b] [u]NPOJI610.dll[/u] [/b]) and all work's FIN now!
([i]Don't know what this file is used for but no problem <applet> works and no crash and error anymore!![/i]) 

[b]Java <applet> images working now on my Firefox! [/b]Also the Java test tool ( Test your JVM ) works! 

http://java.com/en/download/help/testvm.xml

[b]Resold: [/b]
Your Java configuration is:
Vendor:  Sun Microsystems Inc.
Version:[b] 6 update 2[/b]
Operating System: [b]Windows XP SP2[/b]
OS version: 5.1

[b]All the Errors I got before!![/b]

[i]1) FireFox Crash when I load my Web page with <applet>  </applet> instruction Init!
2) [b]Java plug-in detected jre collision[/b]
3) Also the Firefox Browser is prompting to open new Tap!
4) [b]FireFox Error msg:[/b]
The prompt  "Applet(s) in this HTML page requires a version of java different from the one the browser is currently
using.  In order to run the applet(s) in this HTMLpage, a new browser session is required, press 'Yes'
to start a new browser session" appears but with no 'Yes' button to press.[/i]

[b]Browser Detail:[/b]
Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.6) Gecko/20070725 [b]Firefox/2.0.0.6[/b]

[b]Java Installed up to Date version![/b]

( [b] jdk-6u2-windows-i586-p.exe[/b] ) [b]JER[/b] is include in this download size= ( [b]67.147 MB[/b] )  <a 

href="http://sdlc-esd.sun.com/ESD33/JSCDL/jdk/6u2/jdk-6u2-windows-i586-p.exe?AuthParam=1189008643_5e937c6177ed865d3b857f8e6f0d3295&TUrl=an1npDpbKod7kSYr

ROhENTonIuA4W0D1Lc4nXz+pGFFranixdCdgxDTPbW4=&TicketId=dVB4NwJNMuw7/Q==&GroupName=SDLC&BHost=sdlc2h.sun.com&FilePath=/ESD33/JSCDL/jdk/6u2/jdk-6u2-windows

-i586-p.exe&File=jdk-6u2-windows-i586-p.exe">[b]Download Link:[/b]</a>
[b]Installation Resold[/b]=  only have this version Installed!
C:\PROGRAM FILES\java\[b]jdk1.6.0_02[/b]
C:\PROGRAM FILES\Java\[b]jre1.6.0_02[/b]
Still got in my Java Dir ( Java Launcher ) & ( Java3D ) installed!
[b]Make sure after installation to clear all the Cache on all browser's and restart your computer!![/b]

With this combination I got: ([b] IE v6,[/b]) ( [b]Opera v9.23 [/b]) ( [b]Netscape Navigator/9.0b3 [/b]) and [b]Firefox/2.0.0.6[/b] [i]WORKING!
[/i]
[u]
NO MORE ERRORS[/u] and Java <applet>  </applet> code is loading and working now! 
[b]A Sample[/b] this was the web page I had the problem with: htp://pnpb.110mb.com/

[b]Note:[/b] 
[i]Just fun I deed I copy this bad file [b]NPOJI610.dll[/b] to the Netscape plugin directory and
there we go I get the exact same problem as I had before with FireFox Java <applet> will not working![/i]

[i]Hope this will Help someone with the same problem I had![/i]

Regards;
 Mario

Let me know if this worked for you!  mario_oestert@yahoo.com