jdk9 builds failing with: java.io.IOException: Mount point not found

Brian Burkhalter brian.burkhalter at oracle.com
Wed Sep 14 21:35:57 UTC 2016

On Aug 30, 2016, at 4:57 AM, Alan Bateman <Alan.Bateman at oracle.com> wrote:

> On 30/08/2016 12:49, Matthias Klose wrote:
>> In some build environments jdk9 builds fail with
>> Error: jdk.tools.jlink.plugin.PluginException: java.io.IOException: Mount point
>> not found
>> complete build log e.g. at
>> https://launchpadlibrarian.net/281693434/buildlog_ubuntu-yakkety-arm64.openjdk-9_9~b133-1ubuntu1_BUILDING.txt.gz
>> The issue is not new, popped up earlier as seen in
>> http://mail.openjdk.java.net/pipermail/nio-dev/2009-May/000547.html
>> However for some reason this code is not called during 7 and 8 builds, only for 9.
> Can you submit a bug on this? It's possible that there hasn't been much testing in chroot environments.
> As to why you are seeing this with JDK 9 builds then it is because the build runs jlink to create the run-time image. In JDK 8 and older then it was done by recipes in the build.

Looping in nio-dev which is the appropriate mailing list for this problem.

Alan filed https://bugs.openjdk.java.net/browse/JDK-8165323 to track this. I just submitted a review request for a fix for the immediate build problem at




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