Bug#908085: leiningen-clojure: FTBFS randomly (clojure.lang.PersistentVector cannot be cast to java.base.etc.etc)

Elana Hashman ehashman at debian.org
Sat Sep 8 20:46:43 BST 2018

Apologies for the slightly delayed reply, this got sent to my spam...

On Wed, Sep 05, 2018 at 11:34:40PM +0000, Santiago Vila wrote:
> The failure happens randomly, approximately half of the time, but it also
> happened here on armhf:
> https://tests.reproducible-builds.org/debian/rb-pkg/buster/armhf/leiningen-clojure.html

I have only seen this on 32-bit architectures before (previously i686
but not in recent times, now only armhf). I have never seen this happen
on amd64 on any of my build machines or the Debian buildds.

I have a suspicion (given the stacktrace) that the issue is somewhere
inside org.clojure/data.xml rather than lein itself. Leiningen is pinned
to an old version, but there hasn't been a stable release since that one
(latest is 0.2.0-alpha5).

> If you need help to reproduce this, please say so.

I definitely need help reproducing this and tracking down a root cause.
FWIW I filed an upstream bug about this a while back as well:

I've been aware of this at least March 2018 but am at a loss for what
could be causing it.


- e
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