Package: openjdk-6-jre
Version: 6b27-1.12.4-1
Severity: important
Dear Maintainer,
On Debian 7.0 with pulseaudio (required by gnome-core), a Java application
that attempts to play audio while pulseaudio is already playing another
sound yields an exception:
Unexpected error detected.
java.util.ConcurrentModificationException
null
java.util.ConcurrentModificationException
at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:782)
at java.util.ArrayList$Itr.next(ArrayList.java:754)
at
org.classpath.icedtea.pulseaudio.PulseAudioLine.fireLineEvent(PulseAudioLine.java:75)
at
org.classpath.icedtea.pulseaudio.PulseAudioDataLine$2.update(PulseAudioDataLine.java:202)
at
org.classpath.icedtea.pulseaudio.Stream.underflowCallback(Stream.java:675)
at org.classpath.icedtea.pulseaudio.EventLoop.native_iterate(Native
Method)
at org.classpath.icedtea.pulseaudio.EventLoop.run(EventLoop.java:133)
at java.lang.Thread.run(Thread.java:679)
After this exception, the Java application is incapable of playing audio
until pulseaudio is restarted after calling "killall pulseaudio" and the
Java application is shut down and restarted.
Updating pulseaudio from version 2.0-6 to version 3.0-1 from Debian's
experimental distribution yielded the same failure, with pulseaudio again
unable to play more than one sound at a time without leading to this
failure while playing a sound in the Java application.
For reference, the output of "lsmod | grep snd" follows:
snd_hda_codec_realtek 188858 1
snd_hda_intel 26259 2
snd_hda_codec 78031 2 snd_hda_intel,snd_hda_codec_realtek
snd_hwdep 13186 1 snd_hda_codec
snd_pcm 68083 2 snd_hda_codec,snd_hda_intel
snd_page_alloc 13003 2 snd_pcm,snd_hda_intel
snd_seq 45126 0
snd_seq_device 13176 1 snd_seq
snd_timer 22917 2 snd_seq,snd_pcm
snd 52889 12
snd_timer,snd_seq_device,snd_seq,snd_pcm,snd_hwdep,snd_hda_codec,snd_hda_intel,snd_hda_codec_realtek
soundcore 13065 1 snd
Attempting to resolve the problem with pulseaudio, I installed and
enabled "jdk-6u43-linux-x64.bin" with similar trouble with pulseaudio.
I tried testing again with a Linux 3.4.39 kernel with no difference.
Eventually, running "fakeroot make-jpkg jdk-7u17-linux-x64.tar.gz",
installing "oracle-j2sdk1.7_1.7.0+update17_amd64.deb", and issuing
"update-alternatives --config java" to select "j2sdk1.7-oracle"
yielded successful output of audio from the Java application to
pulseaudio that could be repeated with pulseaudio 2.0-6 or 3.0-1.
Some other relatively minor quirks with pulseaudio 2.0-6 or 3.0-1
remained, but those appear to be more general bugs of pulseaudio.
While I found a workable solution in Java 7, I'm reporting the problem
here as Java pulseaudio fails in this case with the default Debian 7.0.
-- System Information:
Debian Release: 7.0
APT prefers testing
APT policy: (500, 'testing')
Architecture: amd64 (x86_64)
Kernel: Linux 3.2.0-4-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Versions of packages openjdk-6-jre depends on:
ii libasound2 1.0.25-4
ii libatk-wrapper-java-jni 0.30.4-2
ii libc6 2.13-38
ii libgif4 4.1.6-10
ii libjpeg8 8d-1
ii libpng12-0 1.2.49-1
ii libpulse0 2.0-6
ii libx11-6 2:1.5.0-1
ii libxext6 2:1.3.1-2
ii libxi6 2:1.6.1-1
ii libxrender1 1:0.9.7-1
ii libxtst6 2:1.2.1-1
ii openjdk-6-jre-headless 6b27-1.12.4-1
ii zlib1g 1:1.2.7.dfsg-13
Versions of packages openjdk-6-jre recommends:
ii icedtea-netx 1.3.1-3
ii ttf-dejavu-extra 2.33-3
Versions of packages openjdk-6-jre suggests:
pn icedtea-plugin <none>
-- no debconf information
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