InfoQ Homepage Virtual Machines Content on InfoQ
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Azul Systems and Twitter Elected to the JCP Executive Committee, VMware No Longer Represented
Twitter and Azul Systems have been elected to serve on the JCP Executive Committee for Java SE/EE, on voting percentages of 32% and 19% respectively. Both firms have also joined the OpenJDK project. VMware is no longer represented.
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Clojure Web Frameworks Round-Up: Enlive & Compojure
Clojure is rather new member of the LISP family of languages which runs on the Java platform. Introduced in 2007 it has generated a lot of interest. InfoQ had a small Q&A with James Reeves and Christophe Grand, the creators of Enlive and Compojure, about their projects and their experiences working with Clojure.
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Java7 Hotspot Loop Bug Details
Last week, Oracle released Java7 to great acclaim. However, an issue identified by the Apache Lucene project pointed to a specific hotspot optimisation bug which kicks in when a loop is executed more than 10,000 times. How serious is this issue, and does it warrant the kind of negative press that has been played out over the last few days?
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JetBrains introduces the new JVM language Kotlin
So far, Kotlin has been primarily known as a Russian island thirty kilometers west of Saint Petersburg. More recently, the Czech company JetBrains introduced a programming language named Kotlin running on the JVM (Java Virtual Machine). It is the intent of the Kotlin language developers to get rid of some challenges in the Java language.
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Automatic Reference Counting in Objective-C
A document has appeared on the Clang website describing requirements for Automatic Reference Counting in Objective-C. This provides a service, akin to C++'s auto, which allows objects to automatically take part in the retain/release/autorelease cycle without requiring the user to do anything explicitly about it.
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IonMonkey: Mozilla’s new JavaScript JIT compiler
IonMonkey is the name of Mozilla’s new JavaScript JIT compiler, which aims to enable many new optimizations in the SpiderMonkey JavaScript engine. InfoQ had a small Q&A with Lead Developer David Anderson, about this new development that could bring significant improvements in products that use the SpiderMonkey engine like Firefox, Thunderbird, Adobe Acrobat, MongoDB and more.
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Ceylon JVM Language
Gavin King, creator of Hibernate, gave a presentation at QCon Beijing on the Ceylon JVM language. Ceylon addresses some limitations of the Java programming language although the project is near the inception phase, with no compiler or IDE support. Since its existence leaked out over twitter, there has been a lot of speculation about the language; read on to find out more from Gavin King
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The Last Flight of the Unladen Swallow
Unladen Swallow was an attempt to bring LLVM optimisations to the CPython runtime, but hasn't seen significant activity for the last year. Now, a Unladen swallow retrospective confirms that the project is defunct and is no longer being developed. What happened?
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IBM Releases New 64-bit Java SDK for z/OS
IBM has released two new Java 6 SDKs based on its J9 VM, to take advantage of enhancements to z/OS Java security and the new z196 instructions.
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Apple Releases iOS 4.3 and Xcode 4
Apple has released iOS 4.3, the latest version of its operating system for mobile devices. This is available for iPhone (4 and 3GS), iPod Touch (3rd and 4th generation) as well as iPad and iPad 2 devices, as well as Xcode 4 which includes the LLVM 2.0 and LLDB 1.0 toolchains.
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InvokeDynamic Updates in OpenJDK
The OpenJDK builds recently started to include an updated version of the JSR 292 API, which, whilst not yet final, gives a good indication as to how the JSR is shaping up.
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Cloud Patterns from VMware
Over the last few months WMware's Steve Jin has published several design patterns around working with virtual machines in the cloud, especially vCloud.
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Languages Come to Javascript VMs: CoffeeScript 1.0, StratifiedJS, C/C++ with Emscripten, Python
Javascript's ubiquity and increasingly fast VMs have made it an interesting runtime for languages. InfoQ looks at languages and tools that compile to Javascript: CoffeeScript 1.0, StratifiedJS, the Emscripten LLVM backend which brings C/C++ to Javascript, and more.
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Languages Come to Javascript VMs: CoffeeScript 1.0, StratifiedJS, C/C++ with Emscripten, Python
Javascripts ubiquity and increasingly fast VMs have made it an interesting runtime for languages. InfoQ looks at languages and tools that compile to Javascript: CoffeeScript 1.0, StratifiedJS, the Emscripten LLVM backend which brings C/C++ to Javascript, and more.
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Google Asserts Oracle Patents Invalid
Google has fired back against Oracle in the ongoing JVM dispute, and is now asserting that the Oracle JVM patents are invalid because of obviousness. Things are just about to get interesting.