Java(-applets) for Opera 10-beta on AMD64 - howto

On Jun 8, 8:48 am, Helmut Jarausch <jarau....TakeThisOut@skynet.be> wrote:
> Sorry, if this is a FAQ, but googling around didn't help me.
> The SUN Java website says, one should use the 32bit Java for running java applets.
>
> I've configured Opera for enabling Java and it says the given path is OK.
> But when I gotohttp://www.opera.com/media/applets/clock/
> it doesn't work.

I'm running Opera 10 (64 bit) on Ubuntu 9.10 (64 bit). I installed
the sun-java6-plugin package, with Sun Java 1.6.0.13 (also 64 bit).
My Java path is /usr/lib64/jvm/java-6-sun/jre/lib/amd64. That applet
works for me. Obviously this stuff is distro-specific, but it's
possible to get a 64 bit java plugin working with a 64 bit Opera.

jpkotta <jpkotta.RemoveThis@gmail.com> writes:

> On Jun 8, 8:48 am, Helmut Jarausch <jarau....RemoveThis@skynet.be> wrote:
>> Sorry, if this is a FAQ, but googling around didn't help me.
>> The SUN Java website says, one should use the 32bit Java for running java applets.
>>
>> I've configured Opera for enabling Java and it says the given path is OK.
>> But when I gotohttp://www.opera.com/media/applets/clock/
>> it doesn't work.
>
> I'm running Opera 10 (64 bit) on Ubuntu 9.10 (64 bit). I installed
> the sun-java6-plugin package, with Sun Java 1.6.0.13 (also 64 bit).
> My Java path is /usr/lib64/jvm/java-6-sun/jre/lib/amd64. That applet
> works for me. Obviously this stuff is distro-specific, but it's
> possible to get a 64 bit java plugin working with a 64 bit Opera.

I doubt you need the sun-java6-plugin package with opera. Opera
interfaces directly with java (unless something has changed dramatically
over the last few years).

Unless... Does that package include a "plugin.jar" file or similar? If
I remember correctly, the old java compilers (java 1.1-ish) generates
code that newer java will refuse to run (at least as security-restricted
applets). And the "plugin.jar" file contains code that fixes such old
code on the fly.

Nice to hear that it works, though

eirik

On Wed, 10 Jun 2009 09:22:06 +0200
Eirik Byrkjeflot Anonsen <eirik.DeleteThis@opera.com> wrote:

> > I'm running Opera 10 (64 bit) on Ubuntu 9.10 (64 bit). I installed
> > the sun-java6-plugin package, with Sun Java 1.6.0.13 (also 64 bit).
> > My Java path is /usr/lib64/jvm/java-6-sun/jre/lib/amd64. That
> > applet works for me. Obviously this stuff is distro-specific, but
> > it's possible to get a 64 bit java plugin working with a 64 bit
> > Opera.
>
> I doubt you need the sun-java6-plugin package with opera. Opera
> interfaces directly with java (unless something has changed
> dramatically over the last few years).
>
> Unless... Does that package include a "plugin.jar" file or similar?
> If I remember correctly, the old java compilers (java 1.1-ish)
> generates code that newer java will refuse to run (at least as
> security-restricted applets). And the "plugin.jar" file contains code
> that fixes such old code on the fly.
>
> Nice to hear that it works, though

It works, but not always and this is very annoying somtimes. In Opera I
get all sorts of errors, while FF just works without a problem.
Apparently there is a difference between the two ways of implementing
Java. I like Opera, it works fine, but it is impossible to work
Opera-only. E.g., go to:

http://www.concertgebouw.nl/

Click on a concert and click "bestel" (order). In FF you'll see a map of
the concerthall, in Opera you'll see nothing. This is just an example of
one of the sites that do not work under Opera. Opera reports errors (and
possibly Opera is right) while FF is just working. Whatever the
technical reason may be, these things are very annoying for the
Opera user. I wonder if other people have the same problem here.

R.

Debian testing (Squeeze) on an amd64 an 64bit java. Same problem with
Debian Lenny, 32 bits.

--
___________________________________________________________________
It is better to remain silent and be thought a fool, than to speak
aloud and remove all doubt.

+------------------------------------------------------------------+
| Richard Lucassen, Utrecht |
| Public key and email address: |
| http://www.lucassen.org/mail-pubkey.html |
+------------------------------------------------------------------+

On Wed, 10 Jun 2009 10:29:53 +0200, richard lucassen <spamtrap.TakeThisOut@xaq.nl>
wrote:

> On Wed, 10 Jun 2009 09:22:06 +0200
> Eirik Byrkjeflot Anonsen <eirik.TakeThisOut@opera.com> wrote:
>

>
> It works, but not always and this is very annoying somtimes. In Opera I
> get all sorts of errors, while FF just works without a problem.
> Apparently there is a difference between the two ways of implementing
> Java. I like Opera, it works fine, but it is impossible to work
> Opera-only. E.g., go to:
>
> http://www.concertgebouw.nl/
>
> Click on a concert and click "bestel" (order). In FF you'll see a map of
> the concerthall, in Opera you'll see nothing. This is just an example of
> one of the sites that do not work under Opera. Opera reports errors (and
> possibly Opera is right) while FF is just working. Whatever the
> technical reason may be, these things are very annoying for the
> Opera user. I wonder if other people have the same problem here.

I doubt that is java. Seems javascript to me. Pic is there, but rendered
left -447 in Opera.
Dunno why. Rendering bug?

Try user Css mode and pic is shown.

Jan

--
Using Opera's revolutionary e-mail client: http://www.opera.com/mail/

On Wed, 10 Jun 2009 11:51:46 +0200
"Jan van Gent" <janvan{away}gent@zonnet.nl> wrote:

> > It works, but not always and this is very annoying somtimes. In
> > Opera I get all sorts of errors, while FF just works without a
> > problem. Apparently there is a difference between the two ways of
> > implementing Java. I like Opera, it works fine, but it is impossible
> > to work Opera-only. E.g., go to:
> >
> > http://www.concertgebouw.nl/
> >
> > Click on a concert and click "bestel" (order). In FF you'll see a
> > map of the concerthall, in Opera you'll see nothing. This is just an
> > example of one of the sites that do not work under Opera. Opera
> > reports errors (and possibly Opera is right) while FF is just
> > working. Whatever the technical reason may be, these things are very
> > annoying for the Opera user. I wonder if other people have the same
> > problem here.
>
> I doubt that is java. Seems javascript to me. Pic is there, but
> rendered left -447 in Opera.
> Dunno why. Rendering bug?
>
> Try user Css mode and pic is shown.

Strange, still no picture. What do you mean by "left -447"? At
pixel position -447, left from the screen?

Anyway, it's still an annoying thing. Like the Dutch ING bank, this
site works wel, but in Opera the checkbox "add to addressbook" does not
work. As well as the "Dreambox", a satellite receiver appliance, in
Opera the drop down menu's are missing. FF no prob.

At the moment I'm not able to test these sites in Opera under Windows.

Btw: Opera-10 beta: same story.

R.

--
___________________________________________________________________
It is better to remain silent and be thought a fool, than to speak
aloud and remove all doubt.

+------------------------------------------------------------------+
| Richard Lucassen, Utrecht |
| Public key and email address: |
| http://www.lucassen.org/mail-pubkey.html |
+------------------------------------------------------------------+

On Wed, 10 Jun 2009 18:47:46 +0200, richard lucassen <spamtrap.DeleteThis@xaq.nl>
wrote:

> On Wed, 10 Jun 2009 11:51:46 +0200
> "Jan van Gent" <janvan{away}gent@zonnet.nl> wrote:
>
>> > It works, but not always and this is very annoying somtimes. In
>> > Opera I get all sorts of errors, while FF just works without a
>> > problem. Apparently there is a difference between the two ways of
>> > implementing Java. I like Opera, it works fine, but it is impossible
>> > to work Opera-only. E.g., go to:
>> >
>> > http://www.concertgebouw.nl/
>> >
>> > Click on a concert and click "bestel" (order). In FF you'll see a
>> > map of the concerthall, in Opera you'll see nothing. This is just an
>> > example of one of the sites that do not work under Opera. Opera
>> > reports errors (and possibly Opera is right) while FF is just
>> > working. Whatever the technical reason may be, these things are very
>> > annoying for the Opera user. I wonder if other people have the same
>> > problem here.
>>
>> I doubt that is java. Seems javascript to me. Pic is there, but
>> rendered left -447 in Opera.
>> Dunno why. Rendering bug?
>>
>> Try user Css mode and pic is shown.
>
> Strange, still no picture. What do you mean by "left -447"? At
> pixel position -447, left from the screen?

Yes, that's sometimes done by purpose with hover-over elements. Here i
can't find why it's rendered left from the screen by Opera. Well it's a
table td colspan thing from the row above. If you change the colspan
attribute to 1 the pics is shown. (Done in DragonFly)
Probably you should file a bug report for this one.

> Anyway, it's still an annoying thing. Like the Dutch ING bank, this
> site works wel, but in Opera the checkbox "add to addressbook" does not
> work.

That one does work. Workaround switching to user css mode. (shift G)

> As well as the "Dreambox", a satellite receiver appliance, in
> Opera the drop down menu's are missing. FF no prob.

Do you have a url?

> At the moment I'm not able to test these sites in Opera under Windows.

Same story. It's opera specific.

Btw: Opera-10 beta: same story.
>
> R.
>



--
Using Opera's revolutionary e-mail client: http://www.opera.com/mail/

On Wed, 10 Jun 2009 21:10:16 +0200
"Jan van Gent" <janvan{away}gent@zonnet.nl> wrote:

> > Anyway, it's still an annoying thing. Like the Dutch ING bank, this
> > site works wel, but in Opera the checkbox "add to addressbook" does
> > not work.
>
> That one does work. Workaround switching to user css mode. (shift G)

ok, thnx

> > As well as the "Dreambox", a satellite receiver appliance, in
> > Opera the drop down menu's are missing. FF no prob.
>
> Do you have a url?

It's an internal box but if you are interested you send me your ip and
I'll put port 80 on an external ip.

R.

--
___________________________________________________________________
It is better to remain silent and be thought a fool, than to speak
aloud and remove all doubt.

+------------------------------------------------------------------+
| Richard Lucassen, Utrecht |
| Public key and email address: |
| http://www.lucassen.org/mail-pubkey.html |
+------------------------------------------------------------------+

On Thu, 11 Jun 2009 09:55:54 +0200, richard lucassen <spamtrap.DeleteThis@xaq.nl>
wrote:

> On Wed, 10 Jun 2009 21:10:16 +0200
> "Jan van Gent" <janvan{away}gent@zonnet.nl> wrote:

>> > As well as the "Dreambox", a satellite receiver appliance, in
>> > Opera the drop down menu's are missing. FF no prob.
>>
>> Do you have a url?
>
> It's an internal box but if you are interested you send me your ip and
> I'll put port 80 on an external ip.

Ah, no need, have you tried changing UA or masking as IE

Jan


--
Using Opera's revolutionary e-mail client: http://www.opera.com/mail/

On Thu, 11 Jun 2009 10:39:03 +0200
"Jan van Gent" <janvan{away}gent@zonnet.nl> wrote:

> > It's an internal box but if you are interested you send me your ip
> > and I'll put port 80 on an external ip.
>
> Ah, no need, have you tried changing UA or masking as IE

Indeed, I just tried and identifying as FireFox works (identifying as IE
gives the same problem)

Thnx!

--
___________________________________________________________________
It is better to remain silent and be thought a fool, than to speak
aloud and remove all doubt.

+------------------------------------------------------------------+
| Richard Lucassen, Utrecht |
| Public key and email address: |
| http://www.lucassen.org/mail-pubkey.html |
+------------------------------------------------------------------+

Eirik Byrkjeflot Anonsen wrote:

> Nice to hear that it works, though

Finally, I've got it running.
There is one trap, though.

I have to specify the Java path (in my case)
/opt/sun-jdk-1.6.0.14/jre/lib/amd64

BUT that directory doesn't contain libjvm.so which
is sought by Opera.

The following trick solved this:

pushd /opt/sun-jdk-1.6.0.14/jre/lib/amd64
ln -s server/libjvm.so .
popd

Now, there is a symlink to
/opt/sun-jdk-1.6.0.14/jre/lib/amd64/server/libjvm.so
in the directory
/opt/sun-jdk-1.6.0.14/jre/lib/amd64

PLEASE fix Opera to look for
<JAVA DIRECTORY>/server as well
when searching libjvm.so

This is with Opera 10.00 Beta (Build 4402)
on GenToo 64 bit (AMD64)


--
Helmut Jarausch

Lehrstuhl fuer Numerische Mathematik
RWTH - Aachen University
D 52056 Aachen, Germany