With Valang validator you can write declarative validation rules using an intuitive syntax. The purpose of Valang validator is: * to quickly write validation rules without the need to create a class or write Java code. * to ease the use of the Spring validation tools. * to make validation rules compact, easily readable and maintainable.

The Quaqua Look and Feel (Quaqua) is a Java implementation of Apple's Human Interface Guidelines (AHIG) for Mac OS X.

I admire work Eric Bruneton did on ASM, because this code is piece of art. ASM runtime is only 35K and it support all Java 5 features and still work on JRE 1.3. There is many gems in there and this is only one of the tricks you can use to reduce class size.

为国际客户设计 Java Server Pages（JSP）应用程序更像是一门艺术，而不像是科学，但所涉及的内容不仅仅能满足眼球。成功的关键是理解与国际化有关的独一无二的服务器端问题。Java 开发人员 Sing Li 将阐述这个重要问题，并给出两个经过考验确实有效的解决方案。

JUnit 通过制作满足预期需求的断言来测试软件代码单元，但是这些断言只限于基本操作。IBM 软件工程师 Tony Morris 通过引入 JUnit 断言扩展（Assertion Extensions for JUnit）填补了这个空白，JUnit 断言扩展提供了一整套在 JUnit 框架中执行的复杂断言。下面请随作者的演示一道，了解如何使用这个来自 alphaWorks 的新包来提高 Java 软件的可靠性和健壮性。

I've been bitten a number of times in the last several months by there not being a decent CSV library in Java. CSV is just enough of a pain to want a somewhat thought out tool (escaping, quoted fields, possibly comment rows).

Utility classes to simply reading from, and writing to, CSV (or other character delimited) files. They provide for splitting up, and building, flat files into arrays or Strings. Very basic, but they handle escaping, quotes, etc.

public static String getCaller() { int i; StackTraceElement stack[] = (new Throwable()).getStackTrace(); for (i=0; i < stack.length; i ) { StackTraceElement ste=stack[i]; System.out.println(ste.getClassName() "." ste.getMethodName() "(...)"); System.out.println(i "--" ste.getMethodName()); System.out.println(i "--" ste.getFileName()); System.out.println(i "--" ste.getLineNumber()); } }

Pebble weblog is the popular server-side blogging tool written in Java. It's small, fast and feature-rich with an unrivalled ease of use. Blog content is stored as XML files on disk and served up dynamically, so there's no need to install a database. All maintenance and administration can be performed through your web browser, making Pebble ideal for anybody who is constantly on the move or doesn't have direct access to their host.

Code Statistic Lines Eclipse Plugin:Java项目代码行数统计插件 适用范围:Eclipse 3.0.1,3.0.2

Most multi-user operating systems already have a way in which server applications are started and stopped, under Unix based operating systems non interactive server applications are called daemons and are controlled by the operating system with a set of specified signals. Under Windows such programs are called services and are controlled by appropriate calls to specific functions defined in the application binary, but although the ways of dealing with the problem are different, in both cases the operating system can notify a server application of its imminent shutdown, and the application has the ability to perform certain tasks before its process of execution is destroyed.

CowCatcher is an Open Source initiative aimed at providing authoring tools and a repository for Java training material. This material is primarily directed at those who provide Java class-room training (like ourselves!), but may be of use for anyone studying Java.

Pushlets are a servlet-based mechanism where data is pushed directly from server-side Java objects to (Dynamic) HTML pages within a client-browser without using Java applets or plug-ins. This allows a web page to be periodically updated by the server. The browser client uses JavaScript/Dynamic HTML features available in type 4 browsers like NS and MSIE. The underlying mechanism uses a servlet HTTP connection over which JavaScript code is pushed to the browser.

MyJavaPack is a platform independent installer of 37 Java developer goodies.

SQL Server's Notification Services let you instruct the database to let your applications or your users know when data changes or reaches critical thresholds. Furthermore, standard notification delivery methods ensure that notifications aren't limited to .NET or Windows clients.

OpenWFE is an open source workflow engine. It is implemented in Java, and is available under the BSD license. OpenWFE not only features a workflow engine, but also a full fledged Business Process Management Suite.

SiteMesh is a web-page layout and decoration framework and web- application integration framework to aid in creating large sites consisting of many pages for which a consistent look/feel, navigation and layout scheme is required.