All content and news on InfoQ about JRuby
Latest featured content about JRuby

- Ruby
- Topics
- Technology,
- Runtimes,
- JRuby,
- Dynamic Languages,
- Debugging
A misconception lingers in the Ruby world: Ruby has no debugger. This is blatantly wrong - Ruby has debuggers, GUIs for debuggers and APIs for debuggers. InfoQ takes a close look at the state of debugging tools in the Ruby world - and finds that its debugging support is more than sufficient.
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By Werner Schuster
on Apr 19, 2008,
News about JRuby
- Java,
- Ruby
- Topics
- JRuby,
- Performance & Scalability,
- Ruby on Rails
JRuby's 1.1.1 release brings a few improvements over the initial 1.1 release, including a fix for a problem on IBM VMs and it now ships with the JIP profiler. Users of the JRuby 1.1.x trunk can also try out a new performance improvement that promises to seriously boost startup performance. Also: a look at GSoC '08 project related to JRuby.
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By Werner Schuster
on May 06, 2008,
- Ruby
- Topics
- SaaS,
- Performance & Scalability,
- JRuby,
- Ruby on Rails
New Relic introduces a new performance analysis tool for Rails applications. The tool is installable as a Rails plugin, and offloads the analysis to the New Relic service. We talked to New Relic's Lew Cirne about the technology behind the product.
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By Werner Schuster
on May 02, 2008,
Articles about JRuby

- Java,
- Ruby
- Topics
- Ruby on Rails,
- Dynamic Languages
JRuby core developer Ola Bini sat down to talk with InfoQ about Ruby and how he came to be involved with JRuby. In the interview Bini talks about the challenges of developing JRuby and where it is headed in the future. In addition to the interview, InfoQ is also proud to present an excerpt from Bini's book Practical JRuby on Rails Web 2.0 Projects.
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By Scott Delap
on Mar 27, 2008,

- Java,
- Ruby
- Topics
- Compilers,
- JRuby,
- Dynamic Languages,
- Deployment / Datacenter
JRuby is built on Java - so it can make use of Java Web Start to make it easy to deploy JRuby apps. This article walks through the necessary steps for releasing a JRuby app with Java Web Start, including: how to handle signing, setting JRuby parameters and a look at using JRuby 1.1's coming AheadOfTime (AOT) compilation feature.
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By Mirko Stocker
on Mar 07, 2008,
Interviews about JRuby

- Java,
- Ruby
- Topics
- Web Frameworks,
- Ruby on Rails,
- Application Servers,
- Enterprise Architecture,
- Platforms,
- Compilers,
- JRuby,
- Community
JRuby project lead Charles Nutter discusses how he got involved with JRuby, Sun's involvement with JRuby, how JRuby fits into enterprise-level web applications, the possibility of a friendly fork of the OpenJDK source code, reasons for switching to JRuby, the future of JRuby, Spring and JRuby, and the Ruby community as a whole.
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By Charles Nutter
on Feb 14, 2008,

- Java,
- Ruby
- Topics
- Domain Specific Languages,
- Dynamic Languages
Groovy project manager Guillaume Laforge discusses the history of Groovy, it's relationship to Java, where Groovy fits into Java development,how Groovy compares to Ruby, how Groovy enables domain-specific languages, and what future Groovy development will focus on.
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By Guillaume Laforge
on Dec 05, 2007,
Presentations about JRuby

- Java,
- Ruby
- Topics
- JRuby,
- Language
In this presentation from QCon San Francisco 2007, Charles Nutter discusses the Ruby and JRuby featureset, the JRuby compiler, calling Java from JRuby and vice versa, programming Swing with JRuby, JRuby web applications, JRuby on Rails, persistence, build automation, Test-Driven Development and Behaviour-Driven Development.
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By Charles Nutter
on Apr 18, 2008,

- Java,
- Ruby
- Topics
- Ruby on Rails,
- Dynamic Languages
In this presentation from InfoQ Day at Java One, Thomas Enebo and Charles Nutter show off the current state of the JRuby project, which has come a long way under their stewardship. The presentation shows compelling demonstrations of how the Ruby language and key Ruby applications can function well on the Java Virtual Machine.
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By Charles Nutter & Thomas Enebo
on Sep 06, 2006,