InfoQ Homepage JVM Content on InfoQ
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Presentation: Evolving the Java Platform
In this presentation recorded at QCon London 2008, Ola Bini talks about the current status of the JVM regarding languages running on top of it and the need to evolve in order to support dynamic languages.
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The Ioke JVM Language: The power of Lisp and Ruby with an intuitive syntax
Ola Bini, a core JRuby developer and author of the book Practical JRuby on Rails Projects, has been developing a new language for the JVM called Ioke. This strongly typed, extremely dynamic, prototype based object oriented language aims to give developers the same kind of power they get with Lisp and Ruby, combined with a nice, small, regular syntax.
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Interview: Neal Ford On Programming Languages and Platforms
In this interview made by Sadek Drobi during QCon San Francisco 2007, Neal Ford talks about the tendency of having multiple languages running on one of the two major platforms existing today: Java and .NET. He also presents the advantages offered by Ruby compared to static languages like Java or C#.
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Terracotta-VisualVM Integration Offers Cluster-wide Visualization and Event Correlation
Terracotta integration with Sun Microsystem's VisualVM tool offers JVM and cluster-wide visualization. Terracotta announced last week its integration with Sun's VisualVM technology which gives Java developers and web administrators visualization and analysis capabilities to assist in tuning and troubleshooting of Java applications using the Terracotta management console.
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Article: Exploring LISP on the JVM
This article, written by Per Jacobsson, is aimed at Java developers curious about Lisp. It discusses the different dialects of Lisp that are available on the JVM today, and gives a crash course in how Lisp programming works and what makes it unique. Finally it looks at how Lisp code can be integrated with a Java system.
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Article: Do Java 6 threading optimizations actually work? - Part II
In part 2 of "Java 6 threading optimizations" article series, author Jeroen Borgers examines various threading optimizations and JVM arguments to manage them. He also talks about factors like On Stack Replacement (OSR), Heap Management and Lock object data size which could significantly affect the performance of multi-threaded java applications.
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Excelsior JET 6.4: Smaller, Faster, More Secure Java
Since the beginning of time Java applications have been battered with complaints about startup time, memory footprint, performance and security. Recently Sun started to address some of the issues by introducing the Consumer JRE. However, Excelsior JET is a product which provides their own spin on solving these problems.
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Article: Do Java 6 threading optimizations actually work?
Features like biased locking, lock coarsening, lock elision by escape analysis and adaptive spin locking are all designed to increase concurrency by allowing more effective sharing amongst application threads. But do they actually work? In this two part article, Jeroen Borgers explores these features and attempt to answer the performance question with the aid of a single threaded benchmark.
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JSR-292 Early Draft Review Announced
The early draft review of JSR-292 has been released. JSR-292 defines the 'invokedynamic' instruction, a bytecode instruction to assist in the implementation of dynamic languages on JVM.
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JavaOne: Garbage First
In a JavaOne presentation, Sun Microsystems’ Tony Printezis provided more details on Garbage First, a replacement for the CMS garbage collector particularly targeted at long running server applications.
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Terracotta 2.6 Supports Cluster Visualization Tools and Tomcat 6 Integration
The latest version of Terracotta, an open source JVM clustering framework, includes new features like cluster visualization tools and official support for Tomcat 6 platform. Terracotta team announced on Monday, the general availability of version 2.6 of the product which also includes performance improvements in several common use-cases.
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Presentation: Scala: Bringing Future Languages to the JVM
In this presentation, Lex Spoon discusses the Scala programming language. Topics covered include the origin of Scala, the philosophy behind Scala, the Scala feature set, Object-Oriented and Functional programming in Scala, examples of Scala code, writing DSLs, how Scala is converted into Java, Scala performance, Abstract Data Types, unapply, actors and partial functions.
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Interview: Charles Nutter discusses JRuby
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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Programming for the DLR
The Dynamic Language Runtime (DLR) is an effort to facilitate the creation of language runtimes on .NET. IronRuby, a Ruby for .NET, is one of the languages built on the DLR that helps to push its limits. A new blog gives a step by step introduction to the DLR and how to build languages on it.
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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.