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Ian Brown :verified:<a href="https://mastodon.hccp.org/tags/JRuby" class="mention hashtag" rel="nofollow noopener" target="_blank">#JRuby</a> is an important part of the OSS and <a href="https://mastodon.hccp.org/tags/JVM" class="mention hashtag" rel="nofollow noopener" target="_blank">#JVM</a> ecosystem…if you or your company can help support <a href="https://mastodon.social/@headius" class="u-url mention" rel="nofollow noopener" target="_blank">@headius</a> and team’s work please get in touch with him! <a href="https://mastodon.social/@headius/114818341184298906" rel="nofollow noopener" translate="no" target="_blank">https://mastodon.social/@headius/114818341184298906</a>

Charles Oliver NutterIt's time for the last <a href="https://mastodon.social/tags/RailsConf" class="mention hashtag" rel="nofollow noopener" target="_blank">#RailsConf</a>! Sadly, since my <a href="https://mastodon.social/tags/JRuby" class="mention hashtag" rel="nofollow noopener" target="_blank">#JRuby</a> talk was rejected, I won't be able to participate, so I need you to step up and represent. Let me know if you're there and I'll try to connect you with other JRubyists! Tell people our story and spread the word!

alexanderadamThe <a href="https://ruby.social/tags/oslo" class="mention hashtag" rel="nofollow noopener" target="_blank">#oslo</a> <a href="https://ruby.social/tags/airport" class="mention hashtag" rel="nofollow noopener" target="_blank">#airport</a> refuel application is using an <a href="https://ruby.social/tags/Android" class="mention hashtag" rel="nofollow noopener" target="_blank">#Android</a> application written in <a href="https://ruby.social/@JRuby" class="u-url mention" rel="nofollow noopener" target="_blank">@JRuby</a> says <a href="https://mastodon.social/@headius" class="u-url mention" rel="nofollow noopener" target="_blank">@headius</a> at <a href="https://ruby.social/@balticruby" class="u-url mention" rel="nofollow noopener" target="_blank">@balticruby</a>.<a href="https://ruby.social/tags/jruby" class="mention hashtag" rel="nofollow noopener" target="_blank">#jruby</a> <a href="https://ruby.social/tags/ruby" class="mention hashtag" rel="nofollow noopener" target="_blank">#ruby</a> <a href="https://ruby.social/tags/rubyprogramming" class="mention hashtag" rel="nofollow noopener" target="_blank">#rubyprogramming</a> <a href="https://ruby.social/tags/ruboto" class="mention hashtag" rel="nofollow noopener" target="_blank">#ruboto</a> <a href="https://ruby.social/tags/androiddev" class="mention hashtag" rel="nofollow noopener" target="_blank">#androiddev</a> <a href="https://ruby.social/tags/androiddevelopment" class="mention hashtag" rel="nofollow noopener" target="_blank">#androiddevelopment</a> <a href="https://ruby.social/tags/riga" class="mention hashtag" rel="nofollow noopener" target="_blank">#riga</a> <a href="https://ruby.social/tags/BalticRuby" class="mention hashtag" rel="nofollow noopener" target="_blank">#BalticRuby</a> <a href="https://ruby.social/tags/balticruby2025" class="mention hashtag" rel="nofollow noopener" target="_blank">#balticruby2025</a>

Charles Oliver NutterMatz is at <a href="https://mastodon.social/tags/BalticRuby" class="mention hashtag" rel="nofollow noopener" target="_blank">#BalticRuby</a> and so am I! Come learn how JRuby brings you next-gen Ruby performance, scaling, and opportunities at my talk tomorrow!<a href="https://mastodon.social/tags/rubyfriends" class="mention hashtag" rel="nofollow noopener" target="_blank">#rubyfriends</a> <a href="https://mastodon.social/tags/jruby" class="mention hashtag" rel="nofollow noopener" target="_blank">#jruby</a>

sonota88JREとJRubyのインストール（2025年） <a href="https://fedibird.com/tags/Ruby" class="mention hashtag" rel="nofollow noopener" target="_blank">#Ruby</a> - Qiita <a href="https://qiita.com/sonota88/items/18620d1b50122006dbb2" rel="nofollow noopener" target="_blank">https://qiita.com/sonota88/items/18620d1b50122006dbb2</a>書きました<a href="https://fedibird.com/tags/jruby" class="mention hashtag" rel="nofollow noopener" target="_blank">#jruby</a>

postmodernJRuby's activerecord-jdbc-adapter doesn't yet support ActiveRecord 8. How should a gem which depends on ActiveRecord try to best support both CRuby and JRuby? <a href="https://rubygems.org/gems/activerecord-jdbc-adapter/versions/71.0-java" rel="nofollow noopener" translate="no" target="_blank">https://rubygems.org/gems/activerecord-jdbc-adapter/versions/71.0-java</a><a href="https://ruby.social/tags/activerecord" class="mention hashtag" rel="nofollow noopener" target="_blank">#activerecord</a> <a href="https://ruby.social/tags/jruby" class="mention hashtag" rel="nofollow noopener" target="_blank">#jruby</a>

Hacker NewsCreating beautiful charts with JRuby and JFreeChart<a href="https://blog.headius.com/2025/04/beautiful-charts-with-jruby-and-jfreechart.html" rel="nofollow noopener" translate="no" target="_blank">https://blog.headius.com/2025/04/beautiful-charts-with-jruby-and-jfreechart.html</a><a href="https://mastodon.social/tags/HackerNews" class="mention hashtag" rel="nofollow noopener" target="_blank">#HackerNews</a> <a href="https://mastodon.social/tags/Creating" class="mention hashtag" rel="nofollow noopener" target="_blank">#Creating</a> <a href="https://mastodon.social/tags/beautiful" class="mention hashtag" rel="nofollow noopener" target="_blank">#beautiful</a> <a href="https://mastodon.social/tags/charts" class="mention hashtag" rel="nofollow noopener" target="_blank">#charts</a> <a href="https://mastodon.social/tags/with" class="mention hashtag" rel="nofollow noopener" target="_blank">#with</a> <a href="https://mastodon.social/tags/JRuby" class="mention hashtag" rel="nofollow noopener" target="_blank">#JRuby</a> <a href="https://mastodon.social/tags/and" class="mention hashtag" rel="nofollow noopener" target="_blank">#and</a> <a href="https://mastodon.social/tags/JFreeChart" class="mention hashtag" rel="nofollow noopener" target="_blank">#JFreeChart</a> <a href="https://mastodon.social/tags/JRuby" class="mention hashtag" rel="nofollow noopener" target="_blank">#JRuby</a> <a href="https://mastodon.social/tags/JFreeChart" class="mention hashtag" rel="nofollow noopener" target="_blank">#JFreeChart</a> <a href="https://mastodon.social/tags/DataVisualization" class="mention hashtag" rel="nofollow noopener" target="_blank">#DataVisualization</a> <a href="https://mastodon.social/tags/Programming" class="mention hashtag" rel="nofollow noopener" target="_blank">#Programming</a>

Mohit SindhwaniFun-fact! <a href="https://ruby.social/tags/JRuby" class="mention hashtag" rel="nofollow noopener" target="_blank">#JRuby</a> 10.0.0.0 breaks the single digit version number assumption in the `pik` gem for switching between <a href="https://ruby.social/tags/Ruby" class="mention hashtag" rel="nofollow noopener" target="_blank">#Ruby</a> installations/ruby (\d\.\d\.\d)/i doesn't match jruby 10.0.0.0 (3.4.2) 2025-04-13 6ed59bc847 OpenJDK 64-Bit Server VM 21.0.5+11-LTS on 21.0.5+11-LTS +indy +jit [x86_64-mswin32] <a href="https://ruby.social/tags/Programming" class="mention hashtag" rel="nofollow noopener" target="_blank">#Programming</a>

Igor (Ihor) ZubkovI constantly see this in the logs:``` Coverage report generated for RSpec to /home/runner/work/errbit/errbit/coverage.Line Coverage: 91.83% (1764 / 1921)log shifting failed. closed stream log writing failed. closed stream ```This is JRuby 9.4.12.0. And build fail. Fail and fail.What to do with JRuby? Remove support from Errbit? Fix? How?<a href="https://ruby.social/tags/jruby" class="mention hashtag" rel="nofollow noopener" target="_blank">#jruby</a>

James :ruby:I've seen a change in behaviour of Hash.ruby2_keywords_hash? in JRuby v10 manifested as some test failures in this Mocha CI build:<a href="https://app.circleci.com/pipelines/github/freerange/mocha/857/workflows/99ea71bc-a02f-4f35-aeac-6e61b2c97a33/jobs/12856" rel="nofollow noopener" translate="no" target="_blank">https://app.circleci.com/pipelines/github/freerange/mocha/857/workflows/99ea71bc-a02f-4f35-aeac-6e61b2c97a33/jobs/12856</a>I’ve managed to narrow things down a bit in the example in this issue:<a href="https://github.com/jruby/jruby/issues/8784" rel="nofollow noopener" translate="no" target="_blank">https://github.com/jruby/jruby/issues/8784</a>Anyone else seeing this?<a href="https://ruby.social/tags/ruby" class="mention hashtag" rel="nofollow noopener" target="_blank">#ruby</a> <a href="https://ruby.social/tags/jruby" class="mention hashtag" rel="nofollow noopener" target="_blank">#jruby</a> <a href="https://ruby.social/tags/keyword" class="mention hashtag" rel="nofollow noopener" target="_blank">#keyword</a>

postmodernUgh, GitHub's version of JRuby appears to be broken, again. <a href="https://github.com/ronin-rb/ronin-db/actions/runs/13102950753/job/36553479937#step:3:151" rel="nofollow noopener" translate="no" target="_blank">https://github.com/ronin-rb/ronin-db/actions/runs/13102950753/job/36553479937#step:3:151</a><a href="https://ruby.social/tags/github" class="mention hashtag" rel="nofollow noopener" target="_blank">#github</a> <a href="https://ruby.social/tags/jruby" class="mention hashtag" rel="nofollow noopener" target="_blank">#jruby</a>

postmodernAlso, would JRuby users prefer the headless or headful (with AWT/Swing/SWT GUI support) OpenJDK be installed by ruby-install when installing JRuby? /cc <a href="https://mastodon.social/@headius" class="u-url mention" rel="nofollow noopener" target="_blank">@headius</a> <a href="https://ruby.social/tags/jruby" class="mention hashtag" rel="nofollow noopener" target="_blank">#jruby</a> <a href="https://ruby.social/tags/rubyinstall" class="mention hashtag" rel="nofollow noopener" target="_blank">#rubyinstall</a> <a href="https://ruby.social/tags/ruby_install" class="mention hashtag" rel="nofollow noopener" target="_blank">#ruby_install</a>

postmodernNeat, someone used JRuby to add Ruby scripting support to Ghidra. <a href="https://github.com/goatshriek/ruby-dragon#readme" rel="nofollow noopener" translate="no" target="_blank">https://github.com/goatshriek/ruby-dragon#readme</a><a href="https://infosec.exchange/tags/ghidra" class="mention hashtag" rel="nofollow noopener" target="_blank">#ghidra</a> <a href="https://infosec.exchange/tags/jruby" class="mention hashtag" rel="nofollow noopener" target="_blank">#jruby</a> <a href="https://infosec.exchange/tags/ruby" class="mention hashtag" rel="nofollow noopener" target="_blank">#ruby</a>

YSF🚀 Simplified JRuby Gradle plugin 2.0.0 has been released!Documentation: <a href="https://ysb33rorg.gitlab.io/gradle/simplified-jruby-gradle-plugin" rel="nofollow noopener" translate="no" target="_blank">https://ysb33rorg.gitlab.io/gradle/simplified-jruby-gradle-plugin</a>Release notes: <a href="https://ysb33rorg.gitlab.io/gradle/simplified-jruby-gradle-plugin/jruby-simple/2.0.0/changelog.html" rel="nofollow noopener" translate="no" target="_blank">https://ysb33rorg.gitlab.io/gradle/simplified-jruby-gradle-plugin/jruby-simple/2.0.0/changelog.html</a><a href="https://fosstodon.org/tags/gradle" class="mention hashtag" rel="nofollow noopener" target="_blank">#gradle</a> <a href="https://fosstodon.org/tags/gradlePlugins" class="mention hashtag" rel="nofollow noopener" target="_blank">#gradlePlugins</a> <a href="https://fosstodon.org/tags/jruby" class="mention hashtag" rel="nofollow noopener" target="_blank">#jruby</a>

Rocky Jaiswal🕊️Using JRuby with JBang to get the best of both worlds - JVM performance and Ruby productivity<a href="https://rockyj-blogs.web.app/2024/12/22/jruby-jbang.html" rel="nofollow noopener" translate="no" target="_blank">https://rockyj-blogs.web.app/2024/12/22/jruby-jbang.html</a><a href="https://dizl.de/tags/Ruby" class="mention hashtag" rel="nofollow noopener" target="_blank">#Ruby</a> <a href="https://dizl.de/tags/Java" class="mention hashtag" rel="nofollow noopener" target="_blank">#Java</a> <a href="https://dizl.de/tags/JRuby" class="mention hashtag" rel="nofollow noopener" target="_blank">#JRuby</a> <a href="https://dizl.de/tags/JBang" class="mention hashtag" rel="nofollow noopener" target="_blank">#JBang</a>

sonota88JRuby と SQL Server を利用した Rails の開発環境を作る - ESM アジャイル事業部開発者ブログ <a href="https://blog.agile.esm.co.jp/entry/jruby-mssql-rails" rel="nofollow noopener" target="_blank">https://blog.agile.esm.co.jp/entry/jruby-mssql-rails</a> <a href="https://fedibird.com/tags/ruby" class="mention hashtag" rel="nofollow noopener" target="_blank">#ruby</a> <a href="https://fedibird.com/tags/jruby" class="mention hashtag" rel="nofollow noopener" target="_blank">#jruby</a>

Mohit SindhwaniSeeking out <a href="https://ruby.social/tags/JRuby" class="mention hashtag" rel="nofollow noopener" target="_blank">#JRuby</a> folk with a link to my older post abt why we like JRuby: <a href="https://notepad.onghu.com/2022/why-we-use-jruby/" rel="nofollow noopener" translate="no" target="_blank">https://notepad.onghu.com/2022/why-we-use-jruby/</a>It includes links to posts about installing JRuby on <a href="https://ruby.social/tags/Windows" class="mention hashtag" rel="nofollow noopener" target="_blank">#Windows</a>, packing & distributing JARs, calling <a href="https://ruby.social/tags/Java" class="mention hashtag" rel="nofollow noopener" target="_blank">#Java</a> from <a href="https://ruby.social/tags/Ruby" class="mention hashtag" rel="nofollow noopener" target="_blank">#Ruby</a> and how a different garbage collector affects performance.<a href="https://ruby.social/tags/programming" class="mention hashtag" rel="nofollow noopener" target="_blank">#programming</a>

YSF🚀 Simplified JRuby Gradle plugin 2.0.0-alpha.4 has been released!Documentation: <a href="https://ysb33rorg.gitlab.io/gradle/simplified-jruby-gradle-plugin" rel="nofollow noopener" translate="no" target="_blank">https://ysb33rorg.gitlab.io/gradle/simplified-jruby-gradle-plugin</a>Release notes: <a href="https://ysb33rorg.gitlab.io/gradle/simplified-jruby-gradle-plugin/jruby-simple/2.0.0-alpha.4/changelog.html" rel="nofollow noopener" translate="no" target="_blank">https://ysb33rorg.gitlab.io/gradle/simplified-jruby-gradle-plugin/jruby-simple/2.0.0-alpha.4/changelog.html</a><a href="https://fosstodon.org/tags/gradle" class="mention hashtag" rel="nofollow noopener" target="_blank">#gradle</a> <a href="https://fosstodon.org/tags/gradlePlugins" class="mention hashtag" rel="nofollow noopener" target="_blank">#gradlePlugins</a> <a href="https://fosstodon.org/tags/jruby" class="mention hashtag" rel="nofollow noopener" target="_blank">#jruby</a>

YSF🚀 Simplified JRuby Gradle plugin 2.0.0-alpha.3 has been released!Documentation: <a href="https://ysb33rorg.gitlab.io/gradle/simplified-jruby-gradle-plugin" rel="nofollow noopener" translate="no" target="_blank">https://ysb33rorg.gitlab.io/gradle/simplified-jruby-gradle-plugin</a>Release notes: <a href="https://ysb33rorg.gitlab.io/gradle/simplified-jruby-gradle-plugin/jruby-simple/2.0.0-alpha.3/changelog.html" rel="nofollow noopener" translate="no" target="_blank">https://ysb33rorg.gitlab.io/gradle/simplified-jruby-gradle-plugin/jruby-simple/2.0.0-alpha.3/changelog.html</a><a href="https://fosstodon.org/tags/gradle" class="mention hashtag" rel="nofollow noopener" target="_blank">#gradle</a> <a href="https://fosstodon.org/tags/gradlePlugins" class="mention hashtag" rel="nofollow noopener" target="_blank">#gradlePlugins</a> <a href="https://fosstodon.org/tags/jruby" class="mention hashtag" rel="nofollow noopener" target="_blank">#jruby</a>

YSF🚀 Simplified JRuby Gradle plugin 2.0.0-alpha.2 has been released!Documentation: <a href="https://ysb33rorg.gitlab.io/gradle/simplified-jruby-gradle-plugin" rel="nofollow noopener" translate="no" target="_blank">https://ysb33rorg.gitlab.io/gradle/simplified-jruby-gradle-plugin</a>Release notes: <a href="https://ysb33rorg.gitlab.io/gradle/simplified-jruby-gradle-plugin/jruby-simple/2.0.0-alpha.2/changelog.html" rel="nofollow noopener" translate="no" target="_blank">https://ysb33rorg.gitlab.io/gradle/simplified-jruby-gradle-plugin/jruby-simple/2.0.0-alpha.2/changelog.html</a><a href="https://fosstodon.org/tags/gradle" class="mention hashtag" rel="nofollow noopener" target="_blank">#gradle</a> <a href="https://fosstodon.org/tags/gradlePlugins" class="mention hashtag" rel="nofollow noopener" target="_blank">#gradlePlugins</a> <a href="https://fosstodon.org/tags/jruby" class="mention hashtag" rel="nofollow noopener" target="_blank">#jruby</a>

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