Java applets not starting F-9 , firefox-3

[Per Anton Rønning]

Ed Greshko wrote:
> Per Anton Rønning wrote:
>> Ed Greshko wrote:
>>> Per Anton Rønning wrote:
>>>> Ed Greshko wrote:
>>>>> Per Anton Rønning wrote:
>>>>>
>>>>>>>>>> 2) http://www.forex.com
>>>>>>>>>> Both these are made for JRE 1.4... are there major revisions 
>>>>>>>>>> in 1.5 that might
>>>>>>>>>> cause problems?
>>>>>>>>>
>>>>>>>>> This works fine on FF 3.0.1 and Java(TM) Plug-in 1.6.0_07-b06 
>>>>>>>>> on RHELv5.  It does not work on FF 3.0.1 with:
>>>>>>>>>
>>>>>>>>> GCJ Web Browser Plugin (using IcedTea) 1.2
>>>>>>>>>
>>>>>>>>>     File name: gcjwebplugin.so
>>>>>>>>>     The GCJ Web Browser Plugin (using IcedTea) executes Java 
>>>>>>>>> applets.
>>>>>>>> This is installed  -- but it does not work in your environment?
>>>>>>>> Maybe that is the problem then,...
>>>>>>>> and RHEL - Red Hat Enterprise?? What plugin does it use to 
>>>>>>>> execute applets?
>>>>>>>
>>>>>>> gcjwebplugin.so does not work as hoped.  This is the open source 
>>>>>>> environment.
>>>>>>>
>>>>>>>> Is there something else besides gcjwebplugin.so that might help 
>>>>>>>> execute java applets?
>>>>>>>
>>>>>>> I think what needs to be understood is that, at least for me, 
>>>>>>> the Sun supplied java pieces work just fine with the URLs that 
>>>>>>> you have listed.
>>>>>> Ok, that may be it. I'd better clean the PC of everything Java 
>>>>>> runtime-related, and reinstall
>>>>>> the programs from Sun.
>>>>>> Fedora 9 had Java installed ($java did execute before I started 
>>>>>> downloading anything)
>>>>>> I guess this is Java Development  then - since JRE was missing.
>>>>>> Am I then safe to assume that removal of everything under 
>>>>>> /usr/java/jre1.n... (I have both n=5 and n=6) will be enough?
>>>>>> The libjavaplugin_oji.so is set to point to jre1.5... and I 
>>>>>> cannot remember where I got that from.
>>>>>> So, my procedure would be:
>>>>>> Delete everything below /usr/java - download jre.1.5-- from Sun 
>>>>>> and install it.
>>>>>> (I did also use www.java.com before)
>>>>>> I did not use .rpm downloads, some advice I picked up in some 
>>>>>> article I read.
>>>>>> I have observed that the install procedure (starting the self 
>>>>>> extracting .bin file) is creating some libraries, do I have to 
>>>>>> remove these as well, or will they be overwritten?
>>>>>> I cannot remember where they were located, perhaps yum can list 
>>>>>> then  .. (that I cannot remember either, I am going to buy more 
>>>>>> memory! :-)  )
>>>>>
>>>>> I would surely buy more memory.  :-)
>>>>>
>>>>> I would also recommend using the rpms in the future.  Makes 
>>>>> installing/uninstalling/updating much easier.
>>>>>
>>>>> FWIW, you can also confirm what lib FF is referencing by doing an:
>>>>>
>>>>> lsof -p XXXX    where XXXX is the PID of FF and then grepping the 
>>>>> output for  "plugin".
>>>>>
>>>>>> BTW: In what environment exactly did you manage to bring up the 
>>>>>> login screen?
>>>>>
>>>>> My environment is Red Hat Enterprise Linux V 4.7 with FF 3.0.1 and 
>>>>> Sun's latest java and java plugin.
>>>>>
>>>>>> You use jre1.5--- ?
>>>>>
>>>>> No, I've installed Sun's jdk-1.6.0_07-fcs.
>>>> I downloaded
>>>>
>>>>
>>>>      JDK 6 Update 7
>>>>
>>>> /The Java SE Development Kit (JDK) includes the Java Runtime 
>>>> Environment (JRE) and command-line development tools that are 
>>>> useful for developing applets and applications.
>>>>
>>>> /from the SUN site.
>>>>
>>>> I went through the motions, executing the ....*.rpm.bin inder 
>>>> /usr/java,
>>>> created symlinks (libjavaplugin_oji.so) both in 
>>>> ---/.mozilla/plugins and (to be sure)  /usr/lib/mozilla/plugins.
>>>>
>>>> Still no effect. And the funny thing is:
>>>> about:plugins now report this:
>>>> ---------------------------------------------------------
>>>>
>>>>
>>>>    Java(TM) Plug-in 1.6.0_06-b02
>>>>
>>>>    File name: libjavaplugin_oji.so
>>>>    Java(TM) Plug-in 1.6.0_06
>>>> ------------------------------------------------------
>>>>
>>>> I was expecting  _07, not _07 if the last 2 digits identify the 
>>>> update number.
>>>>
>>>> I also have:
>>>> -------------------------------------------------------------
>>>>
>>>>
>>>>    GCJ Web Browser Plugin (using IcedTea) 1.2
>>>>
>>>>    File name: gcjwebplugin.so
>>>>    The GCJ Web Browser Plugin (using IcedTea) executes Java applets.
>>>
>>> I can't think of a reason to have both of these.
>>>
>>> I now have only Sun's Java installed on FF 9.  I "rpm -e" the 
>>> open-java stuff.  And both of your sites run just fine.
>>> -- snip --
>>
>> Then there should be hope for me as well. But I must admit that I 
>> have not dived into this
>> java plugin stuff so much before, (under Fedora Core 5 it was just to 
>> enter the softlink
>> .._oji.so in   /home/.../.mozilla/plugins and then everyting played 
>> nicely.
>> So there is a lot of new stuff now that I try to bring under control.
>> Therefore I am compelled to ask more uninformed questions:
>> rpm -e ? I.e: What should I enter after the erase clause to make sure 
>> that I get it all
>> erased?
>
> rpm -e java-1.6.0-openjdk java-1.6.0-openjdk-plugin
>
> is all you need do.

rpm -e gave error messages, but yum remove did the trick. 
And THEN:
The login screen popped up, and everything worked as it used to work 
after logging in.

I am very grateful for all good help, I have learned a lot from this, I 
have some more understanding of how Java plugins work, but also how 
Firefox deals with plugins.
I will study Java more and use it for some purposes,
then I don't have to ask so many uninformed questions - hopefully.

Brgds
PAR