#1064786 jruby: mri-extra - flaky TestOpen3 pipe tests

Package:
src:jruby
Source:
src:jruby
Submitter:
Vladimir Petko
Date:
2026-08-29 02:37:02 UTC
Severity:
normal
#1064786#5
Date:
2024-02-25 21:50:36 UTC
From:
To:
Dear Maintainer,

The autopkgtests for jruby fail `mri-extra` with the following errors:

  1) Failure:
TestOpen3#test_pipeline_start
[/tmp/autopkgtest.Dz4xQk/autopkgtest_tmp/test/mri/test_open3.rb:303]:
Failed assertion, no message given.

  2) Failure:
TestOpen3#test_pipeline_w
[/tmp/autopkgtest.Dz4xQk/autopkgtest_tmp/test/mri/test_open3.rb:288]:
<true> expected but was
<false>.

  3) Failure:
TestOpen3#test_capture3_flip
[/tmp/autopkgtest.Dz4xQk/autopkgtest_tmp/test/mri/test_open3.rb:190]:

The minimal reproducer of those:
----
require 'open3'

RUBY = 'jruby'
Open3.pipeline_r([RUBY, '-e', 'print "1"'],
                     [RUBY, '-e', 'print STDIN.read + "2"']) {|o,ts|
      print(o.read)
    }
---

executing the above sample results in the following output:
# jruby test.rb
12# jruby test.rb
12# jruby test.rb
12# jruby test.rb
12# jruby test.rb
2# jruby test.rb
12# jruby test.rb
2# jruby test.rb
12# jruby test.rb
2# jruby test.rb
2# jruby test.rb
2# jruby test.rb
2# jruby test.rb
12# jruby test.rb
12# jruby test.rb
2Errno::EPIPE: Broken pipe - <STDOUT>
   write at org/jruby/RubyIO.java:1569
   write at org/jruby/RubyIO.java:1458
   write at org/jruby/RubyIO.java:2829
   print at org/jruby/RubyIO.java:1831
   print at org/jruby/RubyKernel.java:649
  <main> at -e:1

Note: the failure occurs both with Java 17 and Java 21
#1064786#10
Date:
2024-02-26 01:03:25 UTC
From:
To:
This failure is probably caused by [1]


[1] https://github.com/jruby/jruby/issues/8069
#1064786#15
Date:
2026-08-29 02:34:55 UTC
From:
To:
We believe that the bug you reported is fixed in the latest version of
jruby, which is due to be installed in the Debian FTP archive.

A summary of the changes between this version and the previous one is
attached.

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to 1064786@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Jérôme Charaoui <jerome@riseup.net> (supplier of updated jruby package)

(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@ftp-master.debian.org)
Format: 1.8
Date: Fri, 28 Aug 2026 07:41:17 -0400
Source: jruby
Architecture: source
Version: 10.1.1.0+ds-1~exp1
Distribution: experimental
Urgency: medium
Maintainer: Debian Java Maintainers <pkg-java-maintainers@lists.alioth.debian.org>
Changed-By: Jérôme Charaoui <jerome@riseup.net>
Closes: 1064786 1130186
Changes:
 jruby (10.1.1.0+ds-1~exp1) experimental; urgency=medium
 .
   * New upstream version 10.1.1.0+ds (Closes: #1064786, #1130186)
   * ship new upstream dotfiles used by main executable
   * jirb is no longer part of the default gems
   * add maven.compiler.release=21
   * drop obsolete lintian overrides
   * d/control:
     + add fastdoubleparser to deps
     + bump min versions for some deps
     + bump involkebinder version constraint
   * d/patches:
     + refresh for new upstream version
     + add patch to work around an appcds issue
     + new patch to bypass jruby-prism requirement
   * d/rules: avoid wiping upstream-provided libs
   * d/tests:
     + fixes for mri-core test
     + install gem bundle from rubygems.org
     + add missing netbase dependency
     + smoke test improvements
     + fix jruby testcase not actually running
     + add isolation-container restrictions
     - drop obsolete symlink
     - upstream is now excluding these tests
     - exclude two mri-stdlib tests failing
     - exclude unreliable/failing mri-stdlib tests
   * d/watch: update to v5 format
   * Remove redundant Priority: optional from source stanza.
   * Replace FSF postal address with a reference to
https://www.gnu.org/licenses/.
   * Update standards version to 4.7.4, no changes needed.
   * Removed Rules-Requires-Root
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Files:
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