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[Bug 525883] Re: Java applet audio with pulseaudio broken (local apps likely broken)

 

webex still does not work. Why is this markes as fixed? Or are any
additional steps necessary before the released fix will work?

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https://bugs.launchpad.net/bugs/525883

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

Status in “openjdk-6” package in Ubuntu:
  Fix Released

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

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