Installing sun-java6-plugin does not result in working seamonkey java

[Bryce Nesbitt]

I installed sun-java6-plugin, and expected it to handle Seamonkey, but it did not.

See also Bug #267260

Package sun-java6-plugin installs:
  /.
  /usr
  /usr/share
  /usr/share/doc
  /usr/lib
  /usr/lib/xulrunner-addons
  /usr/lib/xulrunner-addons/plugins
  /usr/share/doc/sun-java6-plugin
This results in working Sun Java for Firefox, but not for the Mozilla Seamonkey browser suite.
Seamonkey says that java is not installed.

There a forum thread about a 64 bit version of this problem, but that's not relevant to me http://ubuntuforums.org/showthread.php?t=774956

$ cat /proc/cpuinfo
vendor_id : GenuineIntel
cpu family : 6
model : 15
model name : Intel(R) Core(TM)2 CPU 6400 @ 2.13GHz
stepping : 2

$ lsb_release -rd
Description: Ubuntu 8.04.1
Release: 8.04

~$ apt-cache policy sun-java6-plugin
sun-java6-plugin:
  Installed: 6-06-0ubuntu1
  Candidate: 6-06-0ubuntu1
  Version table:
 *** 6-06-0ubuntu1 0
        500 http://us.archive.ubuntu.com hardy/multiverse Packages
        100 /var/lib/dpkg/status

[Bryce Nesbitt (bryce2)]

Workaround with:

# cd /usr/lib/seamonkey/plugins/
# sudo ln -s /usr/lib/xulrunner-addons/plugins/libjavaplugin.so

[Bryce Nesbitt (bryce2)]

Keywords for google: HardyHeron, Hardy Heron, Ubuntu, Seamonkey Browser, Sun Java, PlugIn, Plug In, Bug, Solution, Issue, Problem, Install.

[graceful1 (gvpalazz)]

I attempted that workaround, but Java plugin still doesn't work on SeaMonkey 1.1.12; Java works fine for FF 3.0

[markor (markoresko)]

Hi I am using Seamonkey 64-bit, myself on 8.04.1 but,
could you explain how do you test java itself, so I could test java working here, too?
What method of testing are you using so I could reproduce bug on 64-bit and 32-bit?

[nanotube (nanotube)]

this bug is still present on karmic. the problem is the postinst script in the sun-java6-plugin package, which only installs an alternative in /usr/lib/xulrunner-1.9/plugins, but not in the 'canonical' location for plugins which is /usr/lib/mozilla/plugins

to fix this, line 6 of the postinst script should read:

browser_dirs="xulrunner-addons mozilla"

then the alternative would be installed in /usr/lib/mozilla/plugins, along with the xulrunner dir.

for reference:
https://developer.mozilla.org/en/firefox_3.5_for_developers
states "Firefox now looks for plugins in /usr/lib/mozilla/plugins on Linux, as well as the previously supported locations.", which also applies to seamonkey2.

[Nomax (nomax)]

Following nanotub's path, the problem isn't fixed in Lucid either.

As a workaround, you can install icedtea6-plugin which works in both Firefox and SeaMonkey (and with 64-bit builds!).

[Nomax (nomax)]

Woops. Sorry, I did a mistake. This is apparently fixed in Lucid.

I'll test and report here.

[Nomax (nomax)]

Ok, just tested. Postinst script is correct in Lucid version of the sun-java6-plugin. SeaMonkey detects and load Java plugin.