InfoQ Homepage JVM Languages Content on InfoQ
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Embedding MacRuby For Application Scripting
The upcoming MacRuby release will have some features that allow to embed the runtime and use Ruby to script Objective-C based applications.
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Is Groovy a Better Choice Than Java for Creating Internal DSLs?
JVM-compatible languages such as Scala, Groovy and JRuby are recently gaining more popularity for developing Domain Specific Languages (DSLs). But are they better suited to creating internal DSLs than the Java programming language? Venkat Subramaniam explains why "Essence over ceremony" and "Metaprogramming" features in a dynamic language like Groovy help in developing internal DSLs.
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Ruby Future Roundup: Ruby 1.9.0-5 Released, JRuby Skips 1.8.7, Procs#=== For Case Testing
Ruby 1.9.0-5, the feature frozen precursor of Ruby 1.9.1 has been released. Procs in 1.9.x now implement Proc#=== which allows to use as executable selectors in case-statements. Also: The JRuby team decides not to work on 1.8.7 support in the near future.
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Rhino Mocks - Lambda Edition
Version 3.5 of the popular Rhino Mocks .NET mocking framework has been released. This version marks a major change in the API. A new 'Arrange, Act, Assert' syntax has been added as an alternative to the exiting 'Record-Replay' semantics. This syntax makes strong use of lambda expressions and extension methods, among other .NET 3.5 language enhancements.
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Behavior-Driven Development for Everyone
Behavior-Driven Development is nothing new but has steadily risen to the forefront as an excellent technique for technical and non-technical participants to collaborate on a software project. Several frameworks exist to aid the development of software in the BDD (Behavior-Driven Development) mindset, with one particular framework trying to make it as <i>easy</i> as possible for everyone.
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Presentation: Concurrency: Past and Present
In this presentation from QCon London 2008, Brian Goetz discusses the difficulties of creating multithreaded programs correctly, incorrect synchronization, race conditions, deadlock, Software Transactional Memory, the history of concurrency, alternatives to threads, Erlang, Scala, and recommendations for concurrency in Java.
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Mockito 1.5 spies on plain objects
The latest release of the Mockito mocking framework enables spying on non-mock objects and introduces a cleaner stubbing syntax.
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Customize Grails Application Behavior Using the Event Model
A typical Grails application throws events at key points in the application life cycle, whether in the build process or in individual artifacts such as domain classes and controllers. These application events are good extension points to setup listeners to intercept them and react to the events with custom behavior.
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Kenai: Project Hosting Built on JRuby on Rails
Kenai is a new project hosting platform from Sun. It offers a comprehensive set of services for open source projects, including source code management and issue-tracking, and most notably, it is built with JRuby on Rails.
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NewRelic Offers Free Rails Monitoring, Adds New Features
NewRelic now offers their Rails performance monitoring (RPM) Lite product free of charge for all Rails users. A host of new features were added to the various commercial versions of RPM.
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Fibers Roundup: NeverBlock Now Rails Compatible, "Poor Man's" Fibers For 1.8
NeverBlock released a new version of their library - this time with support for Rails and Ruby 1.8. The 1.8 support uses Amun Gupta's "Poor Man's" Fiber code which implements Fibers using Threads.
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JRuby Roundup: RCov Port Available, Ribs For Hibernate Support, Parser Stats
A port of the popular code coverage tool rcov is now available for JRuby. Ola Bini started a Hibernate-based library for persisting Ruby objects named Ribs. And finally, JRuby trunk contains a new MBean for analysing parse times.
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Dynamic Invocation Runs on OpenJDK
John Rose, a Hotspot VM developer at Sun, has announced the first successful execution of the 'invokedynamic' instruction on the OpenJDK VM. Dynamic invocation is an important feature for adapting dynamic languages to the JVM.
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JRuby 1.1.4 Released
JRuby 1.1.4 is now available and features improved and much faster Java integration, the beginnings of 1.9 compatibility, native library integration with FFI, and much more.
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Interview: Nick Sieger on JRuby
In this interview recorded at RubyFringe, Nick Sieger talks about the future of JRuby, Java Integration, and his work on JEE deployment tools for Ruby on Rails like Warbler.