Bug#633982: sun-java6-bin: Multiarch support issue with Sun Java

[Livingston, John A]

Tom,

Thank you for investigating the problem further.  I was hoping there would be some way to configure Sun Java in the same manner as OpenJDK, but it's not surprising that there isn't.  I switched Jenkins over to OpenJDK with the NSS configuration and everything seems to be behaving itself.  We still have one or two applications that have little glitches unless Sun Java is used, but this is probably the push we've needed to default to using OpenJDK.  I'll close out the bug.

Thanks again,
John

On Jul 27, 2011, at 6:07 AM, Tom Marble wrote:

> John:
> 
> I tried to reproduce your problem on my amd64 system running
> unstable, but jenkins worked for me.
> 
> I configured the system to use the DLJ version of the JDK:
> # update-java-alternatives --set java-6-sun
> 
> Once running I was able to confirm that the nss libraries
> are loaded by doing (where PID is the jenkins java process):
> $ grep nss /proc/29683/maps
> 
> The fact it is working may be a side effect of recent
> libc change to temporarily disable multi-arch on amd64:
> http://packages.debian.org/changelogs/pool/main/e/eglibc/eglibc_2.13-11/changelog
> 
> When multi-arch is re-enabled you have a couple of potential
> workarounds:
> 
> 1. As you mention above, you can explicitly add the architecture
>   specific directory to the library path (in /etc/default/jenkins):
> 
> JAVA_MULTIARCH="-Djava.library.path=/usr/lib/`dpkg-architecture -qDEB_HOST_MULTIARCH`"
> JAVA_ARGS="$JAVA_ARGS $JAVA_MULTIARCH"
> 
> 2. You can choose to use OpenJDK:
>  a. System wide change
>     # update-java-alternatives --set java-6-openjdk
>  b. Jenkins only change:
>     in /etc/default/jenkins
>     JAVA=/usr/lib/jvm/java-6-openjdk/jre/bin/java
> 
> During this transition period you will likely need to
> update this configuration when using OpenJDK:
> --- /etc/java-6-openjdk/security/nss.cfg ---
> name = NSS
> nssLibraryDirectory = /usr/lib/x86_64-linux-gnu
> nssDbMode = noDb
> attributes = compatibility
> -------
> 
> We will work to insure that OpenJDK is integrated
> properly with Debian. As we will never have the sources
> for sun-java6 you will need to file a bug with upstream
> to request for it to read a config file such as
> /etc/java-6-sun/security/nss.cfg so that distributions
> can make such adaptations.
> 
> Regards,
> 
> --Tom
> 
>