Java Archive

Eye on performance: Micro performance benchmarking

Performance enthusiasts Jack Shirazi & Kirk Pepperdine, Director & CTO of JavaPerformanceTuning, follow performance discussions all over the Internet to see what's troubling Java developers. While surfing the Usenet newsgroup comp.lang.java, they came across some interesting low-level performance tuning questions. In this installment of Eye on performance, they dive into some bytecode analysis to try and answer some of these questions.

Store objects using the JDK 1.4 Preferences API

The Preferences API -- a lightweight, cross-platform persistence API introduced in JDK 1.4 -- is designed to store small amounts of data (string, simple byte arrays, and so on.) and was not intended to be an interface to a traditional database. It can, however, be effective as a storage device if your data can be expressed as simple objects. This article offers an introduction to the API, explains how objects are stored, demonstrates the process in action, and provides a code library to do the work.

Eclipse 3.0 M3 Released

This is the third milestone release towards Eclipse 3.0. Check out the new and noteworthy improvements this version brings. The group in charge of the open-source Eclipse project approved a three month long restructuring process this week that should reduce IBM's dominant role in the effort and make the project more attractive to Java vendors such as Sun Microsystems and BEA Systems. Also, they are thinking of changing the name of the project.

Apple Releases Java 1.4.1-Update1

MacMinute reports that Apple today released Java 1.4.1 Update 1, a new version of its Java implementation for Mac OS X. The update adds the following enhancements: improved Java applet support for Safari and other Web browsers that support the Java Internet Plug-In; improved drawing correctness and performance; changes to Java 1.3.1 that provide support for Oracle11i client applications on Mac OS X; and improved stability, memory usage, and correctness. The update is available via the Mac OS X Software Update preference pane.