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[Jarkko Torvinen <525883@xxxxxxxxxxxxxxxxxx>]

Why are you closing this bug as invalid!?? How is it a user error if the
bug still exists in default install (running 10.10 amd64)

Fix is to:
# ln -s ../amd64 /usr/lib/jvm/java-6-openjdk/jre/lib/ext/amd64

and then add to /etc/java-6-openjdk/security/java.policy

        permission java.lang.RuntimePermission "loadLibrary.pulse-java";
        permission java.io.FilePermission "/usr/lib/jvm/java-6-openjdk/jre/lib/amd64/libpulse-java.so", "read";

That got the
http://www.roseindia.net/java/example/java/applet/PlaySoundApplet.html
playing sound. Need to test microphone in next webex meeting

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which is subscribed to openjdk-6 in ubuntu.
https://bugs.launchpad.net/bugs/525883

Title:
  Java applet audio with pulseaudio broken (local apps likely broken)

Status in “openjdk-6” package in Ubuntu:
  Invalid

Bug description:
  Binary package hint: openjdk-6-jre

Problem: No audio output from applets in firefox using pulseaudio.


charm% lsb_release -rd
Description:    Ubuntu 9.10
Release:        9.10

This bug is in a combination of packages:
 - openjdk-6-jre 6b16-1.6.1-3ubuntu1
 - openjdk-6-jre-lib 6b16-1.6.1-3ubuntu1
 - icedtea6-plugin 6b16-1.6.1-3ubuntu1

Examples:
  - Webex meetings
  - http://www.javazoom.net/applets/tinyplayer/tinyplayer.html

Doing some investigation, I found two things:

 - There is a security policy problem for applets using sound
 - There is a packaging problem with the location of the native pulse library for java

Working backwards using java stacktraces on stderr, I found the following permissions 
were necessary to get audio output from java:

$ cat .java.policy
grant {
  permission java.lang.RuntimePermission 
        "loadLibrary.pulse-java";
  permission java.io.FilePermission 
        "/usr/lib/jvm/java-6-openjdk/jre/lib/ext/i386/libpulse-java.so", "read";
};

Then, I found that the .so file didn't actually exist! Instead, it's in a different directory:

$ dpkg -L openjdk-6-jre | grep pulse
/usr/lib/jvm/java-6-openjdk/jre/lib/i386/libpulse-java.so

Making a symbolic link fixed everything and made it work:

$ ls -l /usr/lib/jvm/java-6-openjdk/jre/lib/ext/i386
lrwxrwxrwx 1 root root 7 2010-02-22 11:19 /usr/lib/jvm/java-6-openjdk/jre/lib/ext/i386 -> ../i386

I can't say how the policies should be managed for applets, but even regular java programs aren't likely to work until the packaging is fixed.

-Dave