117373 - JRE plugin doesn't work even after installing.

Status: VERIFIED DUPLICATE of bug 100393

(Core Graveyard :: Java: OJI, defect)

Description

[Shriniwas Rao]

I visited this page and there are a couple of Java applets on this page. Hence
the browser needs the JRE plug-in to make them work. I have JRE 1.3.1 installed
on my machine. Given that the case I was still prompted for downloading and
installing the plugin. I did that about 3 or 4 times and it doesn't think that
the plug-in is installed. 

I was wondering if anyone else was facing this problem also. This doesn't seem
to be an issue on Netscape 6.2, which was installed on my machine earlier, but I
have removed it since I installed Mozilla.

Comment 1

[Peter Lairo]

i can't get java to work either for about 2+ weeks now (currently using build
2001-12-28, win98). I also redownloaded java 1.3.1 by clicking the "get Java
plugin" button on a webpage.

I even have a user.js setting to search for java at startup of mozilla: 

// search for and install JAVA on PC
user_pref("plugin.do_JRE_Plugin_Scan",true);
pref("plugin.do_JRE_Plugin_Scan",true);

Comment 2

[Peter Lairo]

reporter (Shriniwas Rao): suggest you add the "keywords": mozilla0.9.8,
ecommerce, nsbeta1, nsbranch, regression

Comment 3

[Boris Zbarsky [:bzbarsky]]

To OJI

Comment 4

[Matthias Versen [:Matti]]

Reporter:
Have you Npoji600.dll (NPoji610.dll with JRE1.4) in your plugins folder ?

wfm with win2k build 20011227..

from the 0.9.7 release notes (BTW: always include the build ID in a bug report)
If Java doesn't work, make sure the following is true:
On Windows:
Copy the NPOJI610.DLL from C:\JDK*\jre\bin to "\plugins" directory of your
installation.

Comment 5

[Peter Lairo]

I have "NPOJI600.dll" in my \plugins folder. Still no-go :(

- using build 2001-12-28, win98

Comment 6

[Matthias Versen [:Matti]]

Plairo: (not the reporter)
Have you tried a new profile with a build that you have not installed over an 
older one ?

Comment 7

[Peter Lairo]

OK, I've installed 2001-12-28 to a new directory, created a new profile, deleted
mozver.dat, copied all NPJava130_01(a/b/c).dll and NPOJI600.dll files to
\plugins and also tried all variations in user.js:

// search for and install JAVA on PC
user_pref("plugin.do_JRE_Plugin_Scan",true); /-- both/either on/off
pref("plugin.do_JRE_Plugin_Scan",true);      \-- both/either on/off

I then went here: http://javaboutique.internet.com/stats/halloffame.html and
clicked on #1

ALL *without* success!!! I just get the "Click here to get the plugin" box. :(

Comment 8

[Peter Lairo]

RE my previous comment: I should have worded the below "un-/commented":

// search for and install JAVA on PC
user_pref("plugin.do_JRE_Plugin_Scan",true); /-- both/either *un-/commented*
pref("plugin.do_JRE_Plugin_Scan",true);      \-- both/either *un-/commented*

Comment 9

[Shriniwas Rao]

Matti:

I didn't include the build number 0.9.7 in my bug report cause when I was 
entering my bug, it showed me my build id on the screen belove the textbox used 
to enter the bug, hence I thought it would put it for me!

About installing it on new profile. This is the first build of MoZilla that I 
have installed on my machine and I removed the Netscape 6.2 that I had on my 
machine before I got it. Plus the plug-in used to work in my Netscape.

Like Peter I also copied the DLL you asked me to and still no go.

Comment 10

[Matthias Versen [:Matti]]

[e-mail]: 
The Netscape 6.x profile isn't removed if you used the Netscape uninstaller.
Please try it with a second test profile.
(run "mozilla -profilemanager", create a profile "test", run mozilla with this
profile and after that you can remove the profile again with the profilemanager)

Do you see Java in "about:plugins" ?

Comment 11

[Shriniwas Rao]

Matti:

Tried it with a new profile. Still the same issue. I don't see it in the about: 
Plug-ins page also. Hence the browser doesn't think its installed. But the 
install says its successful!

Comment 12

[salsa_43]

I am having the same problem on windows NT.  I was able to get Java to work on
Windows 2000, but doing the same exact things on Windows NT and it still fails.

Comment 13

[Shriniwas Rao]

[e-mail]:

Are you sure you used the same build in both the cases. I logged this bug for 
build 0.9.7 and I am using Windows 200 Pro and I can't get it to work.

Comment 14

[Rob Hannah]

I had the same problem and have resolved it by doing the following:

1. Download and install JRE 1.3.1_02.
2. When it asks about default plugin for IE/Netscape 6, check at least Netscape 
6.
3. Post-install, you will have 4 new .DLLs in your Plugin folder (NPJava11.dll, 
NPJava12.dll, NPJava131_02.dll, NPJava32.dll).
4. Comparing NPOJI600.dll stamps between Plugin and <JREHome>/bin, you'll note 
that they are different -- the JRE has NOT updated this file (I also tried with 
an empty Plugin directory -- it doesn't copy this file).
5. Copy the newer NPOJI600.dll into the Plugin directory.

Result:  Fully-functional Applet support in 0.9.7...

Comment 15

[Koike Kazuhiko]

I reproduced this bug with 2002011103/WinXP and resolved with
Rob Hannah's workaround.

Comment 16

[Matthias Versen [:Matti]]

That is no workaround - it's 
a) a bug in the JRE installer (and a known bug - dunno the bug# at the moment)
b) User error - you must use the plugin from your JRE installation

Reporter: Can you fix your problem if you copy the npoji600.dll from your JRE
directory ?

Comment 17

[Peter Lubczynski]

*** This bug has been marked as a duplicate of 100393 ***

Comment 18

[shrirang khanzode]

this bug is a hot favourite....VERIF DUP

Comment 19

[Patty Mac]

thanks shrirang!