[Lucid] sun-java6-plugin not recognized by firefox anymore

Confirmed this works.

I have Sun Java installed, but it is not showing up in the plugins list in Firefox.

this also affects me

sudo update-alternatives --install /usr/lib/mozilla/plugins/mozilla-javaplugin.so mozilla-javaplugin.so /usr/lib/jvm/java-6-sun/jre/lib/i386/libnpjp2.so 1

should fix this

sara's command does fix this bug!

confirmed.

Issue the following on AMD64 platforms:

sudo update-alternatives --install /usr/lib/mozilla/plugins/mozilla-javaplugin.so mozilla-javaplugin.so /usr/lib/jvm/java-6-sun/jre/lib/amd64/libnpjp2.so 1

Hi, the following command fixed this issue for me:

sudo update-alternatives --install /usr/lib/mozilla/plugins/mozilla-javaplugin.so mozilla-javaplugin.so /usr/lib/jvm/java-6-sun/jre/lib/i386/libnpjp2.so 1

I am using Core Due Intel though.

Regards,

Alan

This fixed a clean install of Lucid beta that was first fully updated (THANKS!):

update-alternatives --install /usr/lib/mozilla/plugins/mozilla-javaplugin.so mozilla-javaplugin.so /usr/lib/jvm/java-6-sun/jre/lib/amd64/libnpjp2.so 1

the command posted above fixed it for me - i can see java under about:plugins in firefox now!

This is a must fix - if it's hard to install a working Java, new users will be scared away. Right now, some banks here in Sweden need Oracles'/Sun's Java to work properly.

Also many corporate users use Java Citrix Client.

This doesn't affect the icedtea plugin, it properly adds the alternative for mozilla.

Here's a debdiff that will install the alternative for the mozilla directory if it helps to speed things up.

What about open6-jre? They not recognized too.

@RussianNeuroMancer: Icedtea is the openjdk plugin and if I install it here then it does show in firefox about:plugins. So if it doesn't work for you then you have a different problem.

https://bugs.launchpad.net/ubuntu/+source/openjdk-6/+bug/555868

yes, drop the xulrunner-addons dir now ... mozilla is good enough

Thanks for uploading

sun-java6 (6.19-0ubuntu3) lucid; urgency=low

  * Install the plugin for mozilla too (LP: #532174)

Date: Mon, 05 Apr 2010 12:35:02 +0200
Changed-By: Philip Muskovac <email address hidden>
Maintainer: Debian Java Maintainers <email address hidden>
Signed-By: Matthias Klose <email address hidden>
https://launchpad.net/ubuntu/lucid/+source/sun-java6/6.19-0ubuntu3

Hi,
the command using update-alternatives didn't work for me, I had to manually create the link :

sudo ln -sf /usr/lib/jvm/java-6-sun/jre/lib/i386/libnpjp2.so /usr/lib/mozilla/plugins/mozilla-javaplugin.so

I'm using Lucid (fresh installation, only kept my home dir), OpenJDK has been installed prior to Sun JRE.

The above AMD64 solution in a clean install did not work for me, yielding this error:

update-alternatives: error: alternative path /usr/lib/jvm/java-6-sun/jre/lib/amd64/libnpjp2.so doesn't exist.

The libnpjp2.so file indeed does not exist in that folder, though the path does exist.

Hey, there status of openjdk bug is invalid (by the way, why?), and here https://bugs.launchpad.net/ubuntu/+source/openjdk-6/+bug/555868 nobody answer. Can somebody from Canonincal look at openjdk bug?

@Merle: The file is part of 'sun-java6-bin' - Please make sure you have that package installed. (It should get installed as a depends though...)

@RussianNeuroMancer: OpenJDK (IcedTea) isn't affected by *this* bug. If java doesn't work for you, you probably have a different issue.

I apologize. I realize I may have ended up in the wrong bug. My issue is that the Java applet works in Firefox but not in SeaMonkey. A search in Symantec yields no results for 'sun-java6-bin', however, though that may not be relevant now.

Hello,

This bug are present on Mavrick 10.10 alpha1 64 bits and crash the whole browser, it affect any browser, not only Firefox...

Hello,

Yesterday was some update for Mavrick 10.10 for my x86 64 and the bug was fixed after apply it.

Today ,a couple minutes ago, was a update for Lucid 10.04 x86 64 and now the java bug are fixed too,

So thanks very much, be happy that java work now..

Best regards

stars

I wonder when someone take care on openjdk bug from link above?

@RussianNeuroMancer, it seems that this has been fixed already. After having some trouble with open-jdk's mozilla plugin, I removed the package via synaptic completely and installed sun-java6-plugin with all it's dependencies. After restarting firefox, the applets I had trouble with under open-jdk worked without problems anymore. Just FYI...

Even with the above suggestions, I still get this on any site that attempts to read my java config, eg: http://www.java.com/en/download/help/testvm.xml

java.lang.ClassNotFoundException: testvm2.Main.class
 at sun.plugin2.applet.Applet2ClassLoader.findClass(Applet2ClassLoader.java:219)
 at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
 at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
 at sun.plugin2.applet.Plugin2ClassLoader.loadCode(Plugin2ClassLoader.java:532)
 at sun.plugin2.applet.Plugin2Manager.createApplet(Plugin2Manager.java:2940)
 at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Plugin2Manager.java:1444)
 at java.lang.Thread.run(Thread.java:619)
Caused by: java.net.ConnectException: Connection timed out
 at java.net.PlainSocketImpl.socketConnect(Native Method)
 at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)
 at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195)
 at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)
 at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
 at java.net.Socket.connect(Socket.java:529)
 at sun.net.NetworkClient.doConnect(NetworkClient.java:161)
 at sun.net.www.http.HttpClient.openServer(HttpClient.java:394)
 at sun.net.www.http.HttpClient.openServer(HttpClient.java:529)
 at sun.net.www.http.HttpClient.<init>(HttpClient.java:233)
 at sun.net.www.http.HttpClient.New(HttpClient.java:306)
 at sun.net.www.http.HttpClient.New(HttpClient.java:323)
 at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:860)
 at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:801)
 at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:726)
 at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1049)
 at java.net.HttpURLConnection.getResponseCode(HttpURLConnection.java:373)
 at sun.plugin2.applet.Applet2ClassLoader.getBytes(Applet2ClassLoader.java:535)
 at sun.plugin2.applet.Applet2ClassLoader.access$000(Applet2ClassLoader.java:51)
 at sun.plugin2.applet.Applet2ClassLoader$1.run(Applet2ClassLoader.java:192)
 at java.security.AccessController.doPrivileged(Native Method)
 at sun.plugin2.applet.Applet2ClassLoader.findClass(Applet2ClassLoader.java:189)
 ... 6 more

@Thag:

You are into something completely different. This bug just handles the registration of the sun-java plugin.

Looking at the stacktrace you provided I see that you are already using the plugin. But on your side something prevents it from remotely loading classes on demand:
Caused by: java.net.ConnectException: Connection timed out

So do you already checked your firewall rules or e.g. your proxy/nat/routing? Looks like something in between just drops the packets that the plugin sends.

You're right. I just changed from using a proxy .pac file to an explicit proxy addr in the java control panel and it works now.

So, java does not work with proxy pac files!!!

Maybe this little bit will save someone else the weeks I've spent on this.

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