InfoQ Homepage JVM Languages Content on InfoQ
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Why Scala?
Scala is one of the newer languages for the JVM, but why would developers want to choose Scala over Java? There are many reason, but for many Scala provides many of the language features of Ruby in a statically-typed environment.
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Boost your Java Test with Ruby and JtestR
The ease of Ruby for scripting tasks makes it a very powerful candidate for writing your Test suites. Until recently there was no real standalone framework to test your Java with Ruby. JtestR, written by Ola Blini (a member of JRuby team) and Anda Abramovici, makes it possible now. Ruby coupled with powerful Ruby tools such as RSpec, mocha will make writing Java tests smoother.
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JRuby: 1.0.3 addresses compatibility issues, 1.1 performance update
JRuby 1.0.3 is out now. Although a point release, the update is significant because it addresses compatibility issues with Rails 2.0 and other libraries and tools. Meanwhile, some JRuby 1.1 performance improvements get noticed.
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Monitoring Ruby
Developing Ruby and RoR apps might be easy - but what to do when something goes wrong, the interpreter misbehaves or memory leaks spring up. We look at the current options for taking a peek inside Ruby applications.
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Article: What's New in Groovy 1.5
Over the weekend the Groovy team released version 1.5 which contains numerous Java 5 language additions, enhanced tooling support, and performance improvements. In conjunction with Groovy Project Manager Guillaume Laforge, InfoQ is running an article detailing the new features of the release.
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Does Dependency Injection pay off?
There has been an interesting discussion in the blogosphere about the benefits or lack of benefits from using Dependency Injection. The question is — does Dependency Injection really pay off?
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Interview: Guillaume Laforge on Groovy and DSLs
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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IntelliJ IDEA 7 adds Groovy and Grails Support
Dynamic language support is becoming an increasingly common part of Java IDEs. NetBeans 6 has Ruby integration, Eclipse has the DLTK and Aptana, and IntelliJ IDEA 7 offers support for Ruby as well as support for Groovy and Grails (it made its first appearance in milestone 2 and will coming out of beta shortly).
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Oniguruma Java port speeds up JRuby
Joni, the Java port of the Oniguruma Regex engine, has been merged into the JRuby trunk. This promises to be the final step in implementing compatible and fast Regexes for JRuby... and initial tests with REXML seem to back that up.
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Raible Revisits Comparing Web Frameworks
This past week Matt Raible gave a presentation at ApacheCon comparing Java Web Frameworks. This is a follow up to a presentation he gave a few years ago. It is interesting to note the changes in the frameworks being evaluated.
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Lessons from building Oracle Mix on JRuby on Rails
Rich Manalang posts a detailed report about the development of Oracle Mix, starting out on MRI, then moving to JRuby. Along the way, a few valuable lessons about JRuby (on Rails) development and performance pitfalls were learned.
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Article: Iterative, Automated and Continuous Performance
A new InfoQ article looks at evaluating performance in an iterative and continuous manner.
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Oracle Mix: First large JRuby on Rails app online
JRuby on Rails powers its first public webapp: Oracle Mix, a social networking app, was announced at OracleWorld. Built in a few weeks by a team of Oracle and ThoughtWorks, it shows that its possible to build a large application using JRuby on Rails and the Oracle software stack.
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First JRuby 1.1 beta and JRuby 1.0.2 released
The first JRuby 1.1 beta was just released, shortly after the stable branch was updated with JRuby 1.0.2. Among many new features and better performance, ObjectSpace is now disabled by default in 1.1.
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ThoughtWorks Releases Mingle 1.1
Mingle R1.1 is out, just 3 months after after the first release, packed with new functionality driven by user feedback from the launch and beta period. In December R1.2 will be released.