193 symposiums and 30,000 attendees since 2001

Greater Wisconsin Software Symposium

Feb 29 - Mar 2, 2008

Sheraton Milwaukee Brookfield
Sheraton Milwaukee Brookfield
375 South Moorland Road
Brookfield, WI 53005
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Session Schedule

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We are committed to hype-free technical training for software architects, programmers, developers, and technical managers. This year's symposium places increased emphasis on the role of Agile Methodologies, Dynamic Languages, Groovy, Grails, Spring, Security, JEE, Web Services, and Open Source. We offer over 50 sessions in the span of one weekend. Featuring leading industry experts, who share their practical and real-world experiences; we offer intensive speaker interaction time during sessions and breaks.

About Sessions

Our sessions are designed to cover the latest in trends, best practices, and latest developments in Java application development. Each session lasts 90 minutes unless otherwise noted.

A Thorough Introduction To Groovy

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Jeff Brown By Jeff Brown

Groovy is an agile dynamic language for the Java platform. The language and its libraries bring many things to the table to ease the process of building applications for the Java platform. This session provides a detailed run through Groovy with lots of code samples to drive home the power of the language.

Dynamic languages provide a lot of power and flexibility compared to statically typed languages. Groovy brings that power and flexibility to the Java platform in a way that is totally compatible with all of your existing Java code, tools and infrastructure. This session covers all of the fundamentals of Groovy and gives developers a whole lot of practical information they need to get started with the language.

Agile Test Driven Development With Groovy

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Jeff Brown By Jeff Brown

Dynamic languages bring a lot of interesting elements to the table for teams interested in doing Test Driven Development (TDD). Groovy lends itself very well to TDD and this session demonstrates many features of the language and its libraries that help teams build more testable systems and build better tests.

The value of Test Driven Development (TDD) has become widely accepted. The practice has extended beyond just XP teams. Good TDD practices yield high quality software and help teams maintain confidence in their software as complexity grows. The dynamic nature of Groovy makes TDD easy and fun. Groovy may be used to unit test not only Groovy code but other code as well. Testing Java code with Groovy is a snap. Learn to use the power of Groovy to test your systems.

Groovy And Your Build

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Jeff Brown By Jeff Brown

There are numerous roles that Groovy may play in your build process to greatly simplify the management of the build while bringing more capabilities. This session will detail a lot of the things that Groovy can do to improve your build and lessen the amount of effort you spend on your build.

Of all the places that Groovy may help your application, the build is one that is often overlooked but there are really fantastic reasons that the build is a great place for Groovy to be. The build isn't part of your deliverable application so introducing new technology there is much easier than it might be in other areas. Introduce Groovy into your build and let your team develop their Groovy expertise there. That is a great way to discover and take advantage of the great power that Groovy has to offer. After teams appreciate that power they are in a great position to start taking advantage of that power in the application itself. This session will details many ways that Groovy can hel

Prerequisite: A Thorough Introduction To Groovy


Grails - Agile Web 2.0 The Easy Way

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Jeff Brown By Jeff Brown

Grails is a full stack MVC framework for building web applications for the Java platform. Grails makes web application development both fun and easy. This session covers all of the fundamentals of building web applications with Grails.

Businesses need rich web applications and developers want to be able to build those applications without the pain that usually comes along with doing so. Grails addresses these needs very well. Grails demolishes many of the pain points that Java developers have almost (not quite) become numb to after years of suffering. This session covers all of the fundamentals: Introduction To Grails Domain Objects Controllers GSPs Custom TagLibs GORM

The Art of Producing Software: Applying Lean Concepts to Transform Your Software Development Organi..

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John Carnell By John Carnell

Waste is an insidious beast that drains the productivity of development teams and the organizations they work in. Many organizations are now realizing that by turning their gaze inward they can streamline their overall development processes, deliver higher quality products faster and save significant amounts of money.

This talk will look at how to use Lean and Toyota Production Systems manufacturing techniques to streamline how your team builds software.

Waste is an insidious beast that drains the productivity of development teams and the organizations they work in. Many organizations are now realizing that by turning their gaze inward they can streamline their overall development processes, deliver higher quality products faster and save significant amounts of money. In this talk we will look at the "Lean" techniques first developed by companies like Toyota and how they can be applied to common software development practices. We will walk through such concepts as identifying the different types of waste you might encounter in a software development effort, using Value Stream Mapping (VSM) to help measure the impact of that waste and differ

Groovy, the Blue Pill: Writing Next Generation Java Code in Groovy

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Scott Davis By Scott Davis

There are wild-eyed radicals out there telling you that Java is dead, statically-typed languages are passe, and your skills are hopelessly out-of-date. Those extremists are the same ones who don't bat an eye at throwing out years of experience to learn a new language from scratch, pushing aside a familiar IDE for a new one, and deploying to a whole new set of production servers with little regard to legacy integration.

While this "burn the boats" approach to software development might sound exciting to some folks, it's giving your manager the cold shakes right now. What if I told you that there was a way that you could integrate seamlessly with your legacy Java code, continue to use your trusty IDE and stable production servers, and yet take advantage of many of the exciting new dynamic language features that those fanatics keep prattling on about? You'd probably say, "Groovy!" I would, too...

This talk focuses on integrating Groovy with your legacy Java codebase in a way that wouldn't raise an eyebrow in the most conservative of organizations. We'll look at the dramatic reduction in line of code you can achieve by simply flipping your POJOs (Plain Old Java Objects) to POGOs (Plain Old Groovy Objects). We'll talk about calling Java classes from Groovy, and calling Groovy classes from Java. We'll look at Groovyc, the integrated compiler that manages Groovy/Java dependencies without a hiccup. Not once will I tell you to throw out the old in favor of the new. In each case, I'll show you how to integrate the new with the old. Don't throw out your Ant build scripts; mix in a bit of Gr

Groovy, The Red Pill: Metaprogramming, the Groovy Way to Blow a Buttoned-Down Java Developer's Mind

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Scott Davis By Scott Davis

This talk focuses on the ways that Groovy can turn a traditional Java developer's world-view upside down. We'll start by talking about how you can thumb your nose at The Man by leaving out many of the main syntactic hallmarks of Java: semicolons, parentheses, return statements, type declarations (aka Duck-typing), and the ever-present try/catch block. Then we'll look at features like operator overloading and method pointers that Groovy welcomes back into the language with open arms.

The bulk of this session focuses on metaprogramming with Groovy. We'll add new methods to classes at runtime -- even if they were originally implemented in Java, and even if they were declared final. (Thanks, ExpandoMetaClass!) We'll call methods that don't exist and avoid the dreaded MethodNotFound Exception. (Thanks, invokeMethod!) We'll narrowly scope our metaprogramming shenanigans using Use blocks and Categories, and then cast our changes to the wind such that every instance of a class gets our added juice. If you are happy taking the Blue Pill, this talk is not for you. You can continue using Groovy as a slimmed-down dialect of Java -- an 'After' picture to Java's 'Before'. If, howeve

Grails for (Recovering) Struts Developers: A Groovy Alternative

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Scott Davis By Scott Davis

Struts enjoys an unprecedented marketshare in the Java web development space -- 60%-70% according to most surveys. As newer, modern web frameworks come to the scene, very little attention is paid to the real costs of migrating an existing Struts application. This talk shows you ways to mix Groovy into a legacy Struts application, dramatically reducing both the lines of code and the complexity. We'll also introduce you to Grails (a Groovy-based web framework) whose URL-mapping capabilities allow it to replace your Struts application without breaking legacy URLs.

Grails is a modern Web development framework that mixes familiar Java technologies like Spring and Hibernate with contemporary practices like convention over configuration. Written in Groovy, Grails give you seamless integration with your legacy Java code while adding the flexibility and dynamism of a scripting language. After you learn Grails, you'll never look at Web development the same way again.

Real World JSON

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Scott Davis By Scott Davis

JavaScript Object Notation is becoming a familiar delivery platform for Web 2.0 content. JSON gives you all of the flexibility of a RESTful web service without the hassle of trying to deal with deeply nested, complex XML in a language that is conspicuously lacking in native XML support. In this talk, we look at popular websites (like Yahoo!) that offer JSON output. We look at client-side JavaScript code that effortlessly consumes JSON in the browser. We even look at ways to easily generate JSON from Java Servlets (using JSON.org libraries) and the native support for JSON that Grails offers out of the box.

This talk also gives us the opportunity to brush up on our JavaScript, as well as look at clever ways that JSON can work around Cross-Site Scripting issues.

YSlow: Building Your Website for Speed

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Scott Davis By Scott Davis

How optimized is your website? YSlow, a FireFox/FireBug plugin, doesn't pull any punches. It gives any website an A, B, C, D, or F rating based on 14 individual analysis points. You'll be amazed (or depressed) at what YSlow thinks of your site. In this talk, we'll walk through these points step by step, learning what Yahoo! (the creator of this utility) does to keep its web properties running as quickly as possible.

These points are nicely summarized in "High Performance Web Sites", by Steve Souders (a companion book to the plugin). The analysis points that YSlow looks at are programming language, server, and web framework agnostic. The lessons learned here are really a deep look into HTTP, taking advantage of the native capabilities of the protocol -- making the Internet work for you.

Evolutionary SOA

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Neal Ford By Neal Ford

This session demonstrates that "Agility" and "SOA" complement each other quite well. Just because SOA is buzz-word compliant doesn't mean that you should throw good practices out the window. This session demonstrates how you can apply the principles of agility to building highly complex distributed enterprises.

Managers and ivory tower architects seem to think that all the rules that apply to "normal" software don't apply to SOA. Ironically, they matter even more. Agility and SOA are closely aligned because SOA is about building complex distributed systems and Agility is about effectively building complex software. This session unveils the pillars of successful SOA and how to achieve them in a testable, iterative fashion. It discussing testing strategies, how to make your architecture more robust and maintainable, and how to design an evolutionary architecture.

The Productive Programmer: Practice (10 Ways to Improve Your Code)

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Neal Ford By Neal Ford

No one writes perfect code: even the best developers fall into bad habits and traps. These topics from The Productive Programmer illustrate blind spots and helps you write better code.

It is too easy to get into a coding slump and not realize it. This talk revitalizes your relationship to code, forcing you to rethink some of the thing that you take for granted and showing new approaches to solving hard problems. It covers topics that range from improve the overall structure of your code to the way you write JavaBeans, with lots of examples. Everything in this talk may not be new to you, but I guarantee that you'll see some things that will make you reevaluate the way you think about your code. Session Outline: TDDStatic AnalysisGood Citizenshipgetters and setters ConstructorsStatic StateYAGNIOccam and His RazorQuestion AuthorityDSLsJavaBean Specification SLAPNew Langua

Test Driven Design

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Neal Ford By Neal Ford

Most developers think that "TDD" stands for Test-driven Development. But it really should stand for "Test-driven Design". Rigorously using TDD makes your code much better in multiple ways.

This session demonstrates how stringent TDD improves the structure of your code. I discuss TDD as a technique for vetting consumer calls, using mock objects to understand complex interactions between collaborators, and some discussions of improved code metrics yielded by TDD. This session shows that TDD is much more than testing: it fundamentally makes your code better at multiple levels.

Keynote: Ancient Philosophers & Blowhard Jamborees

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Neal Ford By Neal Ford

It turns out that ancient philosophers knew a lot about software -- did you know that Plato defined object-oriented programming? This keynote applies old lessons to new problems and old problems to new lessons. It describes why SOA is so hard, and why people in your company make bone-headed decisions. What other keynote includes Rube Goldberg, Aristotle, Dave Thomas, and Chindia?

Plato, Aristotle, Occam, Rube Goldberg, Dave Thomas, and Demeter...with pictures!

"Design Patterns" in Dynamic Languages

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Neal Ford By Neal Ford

The Gang of Four book should have been entitled "Palliatives for Statically Typed Languages", because the recipes it provides are cumbersome solutions to the problems it poses. Using powerful languages makes the solutions in the GoF book look hopelessly complicated. This session shows how to solve the same problems concisely, elegantly, and with far fewer lines of code using the facilities of dynamic languages.

The Gang of Four book was actually 2 books: a nomenclature describing common software problems and a recipe book for solutions. The vocabulary they defined is still useful. The recipes are a disaster! Dynamic languages (like Groovy and Ruby) have powerful meta-programming facilities far beyond statically typed languages. It turns out that many of the structural design patterns in the Gang of Four book and beyond are much easier to solve with meta-programming. This session compares and contrasts the "traditional" approach of design patterns with a more nuanced meta-programming approach. Using language features creates cleaner abstractions with fewer lines of code and little or no additional s

Introduction to JRuby

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Neal Ford By Neal Ford

This session describes JRuby, the 100% pure-Java implementation of the Ruby programming language. It covers the basics of programming with JRuby and examples of how to integrate it into existing Java projects.

Like hamburger & fries and turkey & dressing, JRuby allows you to harness the awesome power of Ruby in your Java projects. This session describes the origins, capabilities, and limitations of JRuby, the 100% pure-Java implementation of the Ruby programming language. This session also demonstrates some areas where it makes sense to mixin Ruby and Java code: Rails on Java, testing, and dynamic programming. JRuby is a powerful implementation of Polyglot Programming, and this session shows you how to leverage this cutting-edge concept. Session Topics:JRuby's originsCalling Java from RubyCalling Ruby from JavaLimitations and pitfallsExample usageRails on JavaTestingDynamic programmingThe

Rails for JRuby

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Neal Ford By Neal Ford

This session explains all the hype surrounding Ruby on Rails, in a context familiar to Java developers. It covers convention over configuration, ActiveRecord, controllers, views, Ajax, scaffolding, testing, and deployment...on the JVM, using JRuby.

Find out why everyone won't shut up already about Ruby on Rails! This web framework for Ruby has appeared from nowhere to become the critics darling: there must be good reasons why. This session shows those reasons, in a context familiar to Java developers. It discusses how configuration works in Rails, persistence through ActiveRecord, scaffolding, controllers, views, and Ajax. It also covers the important topic of testing, and how Rails makes it easy and automatic. Finally, this session discusses deployment on the JVM, using JRuby, and reflects back on the important lessons that Rails teaches Java developers. This session also presents information about the boundary between Rails, Ruby, a

Code Metrics & Analysis for Agile Projects

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Neal Ford By Neal Ford

What does code + methodology have to do with one another? Everything! Agile projects focus on delivering working code, and tools exist to allow you to verify some quality metrics for your code. This session is a survey of tools and metrics that allow you to determine the quality of your code and strategies to "wire it" into your agile project.

Agile projects focus on delivering code. The responsibility for the quality of that code lies with developers. Yet most developers have a poor sense of how to gauge the quality of code, both during development and forensically. This talk lives on the boundary between what is important in agile projects and ways to verify code quality. It is both a survey of tools and metrics and strategies for proactively applying these techniques to ongoing projects. I talk about the Hawthorne effect, analysis tools (both byte and source code), useful metrics, tools for generating metrics, and how to analyze raw data into actionable tasks. Session Topics:The Hawthorne EffectHow Agility and Metrics Feed Eac

Regular Expressions in Java

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Neal Ford By Neal Ford

Regular expressions should be an integral part of every developer?s toolbox, but most don?t realize what an important topic it is. Regular expressions have existed for decades, but many developers don't understand how to take full advantage of this powerful mechanism, either through command line tools and editors or in their development.

This session shows how to fully exploit regular expressions. It begins with the basic premise of how regular expressions work, then shows how to take advantage of the RegEx library built into the Java platform. This session shows how to use wildcards, escape characters, meta-tags, character class operators, look-aheads/look-behinds, and how to use the greedy operators effectively. It covers regular expressions from the beginning through to advanced usage, both in Java and in tools that support regular expressions. This session is packed with real examples of regular expressions (including a game show with no fabulous prizes). Key Session Points: Regular expressions defined Examples Using t

Agile Project Management (With Just a Bit About Mingle)

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Neal Ford By Neal Ford

You can read books about Agile projects, but you must consult real-world experience to really understand the dynamics of agile project management. This session discusses agile management topics including estimation, project tracking, and useful metrics (and how to obtain them). And just a little about Mingle, the agile project tracking tool from ThoughtWorks.

OK, sure, you can read the XP Explained book. Now what? Agile project management in the real world requires understanding of not just the practices but why they work. This talk delves into several topics relevant to agile project management, including estimation, project tracking, accurate project metrics (and the practices that make them possible). This talk is designed to describe some of the nuances required to handle real agile projects, along with a demonstration of some of the artifacts ThoughtWorks uses to track projects (the most elaborate spreadsheet you've ever seen!). And, towards the end, I show how our experience has culminated into Mingle, the agile project tracking tool from T

JavaServer Faces: A Whirlwind Tour

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David Geary By David Geary

In April 2005, annual growth rates for jobs in JavaServer Faces, Struts, and Ruby on Rails were all at about 0%. Today, Struts' growth rate still hovers around 0%, but JSF and Rails have taken off. At the end of 2007, both JSF and Rails were growing at a rate of between 400-500% annually (according to indeed.com).

JSF has passed the adoption tipping point, and is now the Java-based framework of choice, as is evidenced by its ecosystem. From vendors such as MyEclipse and RedHat to open source projects such as Seam, Facelets, and Ajax4JSF, JSF is where the action is.

Come see why JSF is so popular. In this code- and demo-intensive session, I'll show you the fundamentals of JSF.

This session is taught by a member of the JSF Expert Group for JSF 1.0 and 2.0., and co-author of the best-selling book on JSF: Core JavaServer Faces. David will take you through a whirlwind introduction to JSF including what JSF is, how it was developed, and how you can best take advantage of the technology. Here is a list of topics: Components, managed beans, value expressions, and static navigation i18n, CSS, and actions The Faces Context and Faces messages The JSF Event Model Using JavaScript with JSF This introduction to JSF also contains 5 live-code demos, where David will develop a simple, but robust application during the course of the session.

Prerequisite: Some knowledge of Java-based web applications, such as Struts, is a plus, but is not required. If you have a significant experience with JSF, you probably already know most of what's covered in this session.


Facelets

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David Geary By David Geary

Facelets is a combination of Tiles and Tapestry, and it's the hottest JSF-related open source project on the planet. It's popularity is well deserved, and in fact, much of what is in Facelets today will make its way into the JSF 2.0 spec due out in 2008. So not only can you come to this session and see some really cool demos that you can put to use in the real world, but you'll also be learning JSF 2.0 before it's even been defined! How's that for a ROI?

This session is 90 minutes of nothing-but-Facelets, so we're going to cover a good bit of ground. You'll see all of the basics, such as templating, error handling and debugging, and some of the more advanced aspects, such as creating your own components and tag libraries.

Prerequisite: Some knowledge of JSF is essential. If you're familiar with a templating framework, such as Velocity or Tiles, that's a plus, but not required.


Seam

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David Geary By David Geary

Have you ever stopped to think that you need to learn two frameworks to develop a non-trivial, database-backed, web application? Struts and iBatis; JSF and Hibernate; Tapestry and EJB3.0. Two frameworks. And then you have to learn to use them together. Why do we have to learn two frameworks just to retrieve "Hello World" from a database and show it in a view. Isn't that crazy?

Now you can use one framework, and use one component model. One. Isn't that nice?

Seam, a framework built on JSF and EJB3.0, unifies the JSF and EJB component models. Seam is a steam roller, quickly gathering market share among JSF newbies and longtime believers alike. Come see what it's all about.

This session is an introduction to Seam. If you're already using Seam, then you might want to see what else is on the schedule during this talk, because we're going to cover the basics, such as validation and data models. But if you know a little about JSF and you're curious about Seam, this talk is for you.

Prerequisite: Some knowledge of JSF is required. If you don't know what a managed bean is, for instance, then attend JSF Whirlwind before this session.


Rich Faces

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David Geary By David Geary

This talk explores the RichFaces Ajax framework, which is really two frameworks: Ajax4jsf and RichFaces components. In this session you will see how to implement low-level Ajax functionality using Ajax4JSF, and how to use high-level Ajax components from RichFaces.

The JSF spec has changed little since JSF debuted in 2004. However, the open source community is a frentic cauldron of activity that has produced lots of cool innovations, many of them related to Ajax. In this talk, we'll look at two of the most popular open source Ajax frameworks for JSF: Ajax4jsf and RichFaces. Ajax4jsf gives you a very capable set of low-level Ajax tags (JSP or Facelets), along with their corresponding APIs, that let you easily incorporate Ajax features, most of the time by just using a custom tag or two. Ajax4jsf is an ideal solution if you want to add Ajax functionality to an existing JSF application. RichFaces components is a library of components built on top of Aja

Prerequisite: Some knowledge of JSF is required, in addition to familiarity with Ajax.


Filthy Rich Clients with the Google Web Toolkit, Part I

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David Geary By David Geary

The Google Web Toolkit (GWT) is truly a revolutionary framework that lets you develop Ajaxified web applications without knowing anything about Ajax or JavaScript. But the GWT goes way beyond basic Ajax by letting you implement desktop-like applications that run in the ubiquitous browser.

In this, the first of a two-part session on the GWT, you will learn about the framework and its fundamental capabilities, such as: rapid development with project and application generators; the GWT widget hierarchy; remote procedure calls; the GWT's history mechanism, including its integration with the Back button and bookmarks; and integrating JavaScript frameworks, such as Script.aculo.us, with your GWT applications.

Filthy Rich Clients with the Google Web Toolkit, Part II

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David Geary By David Geary

In the second part of this talk, you will learn how to extend the GWT by implementing custom widgets, including a scrolling viewport and a drag and drop framework. After discussing custom widgets, you will see how to integrate database access into your GWT applications, and how to deploy your GWT applications to external servers.

You will also learn how to integrate GWT widgets into legacy applications built with web application frameworks such as Struts, JavaServer Faces, or Tapestry. The GWT is one of the most powerful Ajax frameworks on the planet, and one of the few that let you easily implement desktop-like applications that run in a browser, and because of that, it has gained incredible mindshare in a short period of time. Come to these two sessions on the GWT and see what all the buzz is all about.

10 Things Every Software Architect Should Know

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Richard Monson-Haefel By Richard Monson-Haefel

An effective software architect understands that every application is different and requires unique choices regarding programming language, middleware, integration, data access, user interface design, etc. Richard Monson-Haefel has distilled knowledge from his own experience and from personal interviews with the World's best software architects to define 10 principles every software architect should know in order to be effective.

Developers aspiring to become software architects and experienced software architects a like will walk out of this session better prepared and more confident in their decisions as software architects.

Developing Rich Internet Applications

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Richard Monson-Haefel By Richard Monson-Haefel

With literally hundreds of RIA products (e.g., Adobe Flash, Nexaweb, Backbase) and open source Ajax projects (e.g. Dojo, GWT, Prototype) to choose from. Picking the right RIA technology for the job requires months of research. Richard Monson-Haefel has been researching and writing about RIA alternatives for two years and has already done the research so you don't have to.

This session will explain the differences between RIA alternatives and provide a framework for selecting the best product or open source project for your application. The choices for RIA technologies seem mind boggling, but after this session you'll know the market and be able to choose the right solution easily.

Understanding Open Source Licensing

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Richard Monson-Haefel By Richard Monson-Haefel

What does GPL, LGPL, MIT, Apache licenses, copy left, and dual licensing mean? Richard Monson-Haefel explains both the legal and technical implications of the major open source licenses in plain English. He explains when and how you can use open source in the enterprise and in the development of software products and how to protect your organization from abusing open source licensing.

You may walk into this session confused about open source licensing, but you'll walk out crystal clear on how open source licenses work and the difference among them.

The Busy Java Developer's Guide to Debugging

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Ted Neward By Ted Neward

Bugs? We all know your code has no bugs, but someday, you're going to find yourself tracking down a bug in somebody else's code, and that's when it's going to be helpful to have some basic ideas about bug-tracking in your toolbox. Learn to make use of the wealth of tools that the Java Standard Platform makes available to you--tools that your IDE may not know exist, tools that you can make use of even within a production environment.

Learn to use jdb, jconsole, jps, jstat, and other tools to identify and squash software defects that just won't reveal themselves during development. Then, just in case those tools aren't enough for you, we'll look at how to write your own, special-purpose tools using the same technology backplane.

The Busy Java Developer's Guide to Monitoring

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Ted Neward By Ted Neward

Crashes? Outages? Slow response? We all know that it's never your code that causes these things, but for some reason those pesky system administrators still insist on paging you at 4AM to come in and fix those problems, anyway. For some reason, they just keep expecting you to support this thing, even after QA said it was OK!

In this presentation, we'll talk about some of the reasons why monitoring in a production application is so important, and why it's not just a system administrator concern. Next, we'll talk about some simple monitoring facilities that don't require any new APIs or new libraries, yet still deliver some useful monitoring capabilities to developers, sysadmins and management. Next, we'll look at using JMX tools to keep an eye on what's going on inside of the JVM itself and/or your applications server, then how to use JMX to create your own points of monitoring interest. Finally, we'll look at how system administrators can build their own monitoring tools by using languages like Groovy and/or JRu

The Busy Java Developer's Guide to Performance and Scalability

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Ted Neward By Ted Neward

Wondering why your enterprise Java app just... sucks? Trying to figure out why you can't get more than 10 concurrent users online at the same time? Looking for ways to try and spot the slowdowns and ways to fix them?

In this talk, we'll look at the various things that can occur in an enterprise Java app (from the smallest web site to the largest multi-resource environment) to make your Java apps perform and scale less well than they should, and how you can work to correct them. We'll examine a variety of broad concepts to apply in architecture and design, and examine what factors make an enterprise application slow, then use a variety of tools to figure out how to remedy them.

The Busy Java Developer's Guide to Concurrency (Part 1: Threads)

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Ted Neward By Ted Neward

Java's threading capabilities took a serious turn for the better with the release of Java5, thanks to the incorporation of the java.util.concurrent packages, a set of pre-built components for thread pooling and execution, synchronization, and more.

In this presentation, we'll explore the Thread API, the Java threading model beneath it, and the enhancements made in Java5 to make it easier for Java code to walk and chew gum at the same time.

The Busy Java Developer's Guide to Concurrency (Part 2: Concurrency)

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Ted Neward By Ted Neward

Java's threading capabilities have been a part of the Java platform since its inception, yet for many Java developers, using Threads still remain a dark and mysterious art, and synchronization beyond the use of the "synchronized" keyword is almost unknown.

In this talk, we'll explore the Java "monitor" concept, and how a monitor isn't quite the same thing as a lock from other concurrency systems. We'll see how monitors can be used to perform signalling across threads, and then how the new java.util.concurrent API (introduced in Java 5) can be used to simplify the same sorts of tasks that used to require deep knowledge of the synchronized keyword. Finally, we'll answer that age-old question, "Why did the multithreaded chicken cross the road?"

Prerequisite: The Busy Java Developer's Guide to Concurrency (Part 1: Threads)


The Busy Java Developer's Guide to Hacking with the JDK

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Ted Neward By Ted Neward

Ever since its 1.1 release, the Java Virtual Machine steadily becomes a more and more "hackable" (configurable, pluggable, customizable, choose your own adjective here) platform for Java developers, yet few, if any, Java developers take advantage of it. Time to take the kid gloves off, crack open the platform, and see what's there. Time to play.

In this presentation, we'll examine several of the "hackable" customization points inside the JVM: the boot classpath, allowing us to add or modify existing JDK classes without violating the license agreement; the JNI Invocation API, allowing us to create custom Java launchers to establish an environment for the JVM that corresponds to exactly the way we want it; or even replace core Java classes with our own versions. Innocents beware--we're a long way from "Hello, Java". (Attendees should have some familiarity with C/C++ code and native build practices to get the most out of this talk.)

10 Tips for Getting Your Project Back on Track

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Jared Richardson By Jared Richardson

Software projects fail over and over for many of the same reasons. We'll look at some of the more avoidable problems and some solid ways to fix them, or avoid them in the first place.

We'll talk about discovering what went wrong (and what went right!) with your last project, solving code integration issues, resolving lingering quality problems, establishing automated test suites, reining in soaring project requirements and more.

Gradual Agile: The Secret to Introducing Agile Practices

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Jared Richardson By Jared Richardson

Agile practices are popular because they work, but getting people to take that first step can be tricky.

We'll look at how continuous integration was successfully introduced to a very large, established software shop and used to introduce other Agile practices. Let's see what lessons we can draw from this example that you can take back to your shop.

Credit Card Software Development: Recognizing and Repaying Technical Debt

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Jared Richardson By Jared Richardson

Technical debt has long been recognized in technical circles for years, but convincing your manager to budget time to repay "technical debt" has always been problematic. Let's couch the term technical debt concept in language more familiar to our managers: credit card debt.

Like credit card debt, technical debt accumulates slowly over time, and usually takes just as long to pay off. The interest slowly builds up until you're no longer able to pay off the principle: your entire development cycle is devoted to just "paying the interest". We'll examine common types of technical debt and strategies to effectively communicating the problems, and their solutions, to your managers.

Agile Software Testing Strategies

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Jared Richardson By Jared Richardson

Creating and maintaining a solid automated test suite is critical to an Agile strategy, but often we're just told to "Do it." In this talk we'll look at several pragmatic strategies for creating and building your suite.

We'll examine these strategies and then look at scenarios for using them next week. This presentation will get you started whether you're starting a new project or trying to clean up an existing one.

Techniques 2009

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Jared Richardson By Jared Richardson

There are a number of great techniques you can use across technologies and projects. Come hear some of my favorite ways to move "beyond" and contribute a few of your own. We'll discuss topics ranging from glue languages to ditching your IDE to building your brain.

In this session we'll discuss: - Move beyond tools - Glue languages - Inbox Zero - Learning to learn - Not being a cog anymore - Macro Object Orientation - Clean code - Looking smarter than you are - Open source tool stacks - Tighter feedback loops - Scripted deployments - Scripting databases - Virutalization And more...

Spring 2.5 - Spring without XML

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Ken Sipe By Ken Sipe

Spring 2.5 is brand spanking new, with a number of fantastic features. With growth of large and complex Spring applications which struggle with xml manageability and with the added pressure of Guice and SEAM there is a push for less XML, with solution leaning towards annotations. Spring 2.5 adds to the toolset provided in Spring 2.0 to provide a development environment where XML is greatly reduced... or eliminated if you so choose.

The session walks through the new Spring 2.5 enhancements, then dives deep into annotation oriented injection. The demonstrations include standard applications as well as a look at the new Spring MVC.

Spring+JPA+Hibernate: Standards Meeting Productivity for Java Persistence

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Ken Sipe By Ken Sipe

Well the standards created EntityBeans.... yea. and the community created Hibernate. Fortunately the standards body learned some lessons and created JPA. JPA requires a vendor implementation and none make a better choice then Hibernate. Combined with Spring this trio is a powerhouse when it comes to developer productivity on applications requiring persistence.

This session will look at in detail the persistence capabilities of the latest Spring 2.5 and how to provide data access capabilities, including nicely added features for unit tests. We'll focus the persistence discussion on JPA and examine a number of ORM mapping scenarios and how JPA maps to them. We'll focus on the spring integration including transactional capabilities.

Java Memory, Performance and the Garbage Collector

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Ken Sipe By Ken Sipe

You are using Java, whew!!! No need to worry about memory, the garbage collector will handle that. Those who have had a memory issue in Java are not so naive any more. Often memory utilization and heap sizes are an after thought and are not recognized until the application is in production, often caused by application uptime, production request volume or production sets of data. When the OutOfMemory Error occurs, often the science of development seems to brake down and knobs are turned. First the (-mx) maximum heap space gets adjusted... More is better right. The next OutOfMemory, heads start scratching, code reviews start in earnest, and Google gets several new hits. Did you know that it is possible to get an OutOfMemory error without running out of heap space?

This talk will walk through the underlying details of memory management in the JVM with a focus on VM flags available to help configure the VM. However we can't configure the VM without a detailed understanding of what is going on inside the VM. We'll focus on tools available for analyzing the memory in a running VM. Two actual client case examples will be presented. We'll discuss the differences between the two cases and why the end configurations were quite different.

JMX and Spring: Manageability for Spring-based Applications

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Ken Sipe By Ken Sipe

This session describes management of Java resources using the Java Management Extensions JMX API. JMX provides a unified framework to instrument Java systems with monitoring and management capabilities.

This session covers JMX 1.2 specification, system monitoring, management needs, and the creation of agents which dynamically manage resources based on monitoring. We cover many of the new features of the Remote JMX access. The JMX support in Spring provides features to easily and transparently integrate Spring applications into a JMX infrastructure. Some of the tougher tasks of JMX develop are made easy with Spring. We'll look at automatic ObjectNames, automatic registration and remote connector proxies as we review Spring's JMX features.

7 Habits of Highly Effective Developers

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Ken Sipe By Ken Sipe

Thoughts lead to words, words lead to action, actions lead to habits. In this session we'll sharpen the development saw in the process of understanding what makes a hyper-productive programmer. The focus will consist of developer habits and development processes.

As described in the book "7 Habits for Highly Effective People", there are habits which are characteristic of highly effective people. Clearly there are hyper-productive developers which distinguish themselves from the development pack? what is it that makes the difference? What are the habits and practices of highly effective developers? This session will focus on individual developer habits, as well as team practices and the processes which result in high quality running software.

Hacking - The Dark Arts

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Ken Sipe By Ken Sipe

A live Hacking demonstration exposing the tools and techniques used by Hackers.

A look at the growing space referred to as ethical hacking or penetration testing. We'll look at example attacks which include: Client-side exploits Sql-Injections Brute force attacks Man-in-the-middle attacks Key logging

REST - Live!

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Brian Sletten By Brian Sletten

You've read the articles, the books, the Ph.D. thesis and all of the meta-commentary about building RESTful APIs, but you're still not sure where to begin.

This is an interactive session and has almost no slides. You should come prepared to discuss ideas and maybe pair program with me and everyone else in the room. Bring your ideas for open source projects that we might want to expose through a resource-oriented model. Bring your concerns about your domains that you are convinced don't fit this model.

This is not an introduction to REST. If you do not know anything about REST, please come to the "Give it a REST" talk if that is offered as well. If not, we can have a quick review, but this session is more for people who want to talk about how the ideas apply.

RESTlet for the Weary

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Brian Sletten By Brian Sletten

If you have started to take a look at REST as way of exposing web services or managing information spaces, you may be frustrated by the support offered by legacy containers. There is no direct support for REST concepts in the J2EE specs (yet). XML-based configurations are so 1990's. Come learn about Restlets, a little API that has caught the attention of many in the RESTafarian community.

The Restlet API was created by a guy who wanted object-level support for RESTful concepts, but didn't want to make the move to an advanced resource-oriented environment like NetKernel. He wanted his REST and conventional environments too. He also wanted a path to more modern containers that aren't tied to a blocking I/O model like the Servlet spec is. This talk will include a brief review of REST and its primary concepts and will then provide an introduction to the Restlet API and how it supports these ideas. It will then focus on standing up a REST-oriented infrastructure using the Restlet API and a variety of other open source tools to support a publish/find/bind infrastructure without to

Prerequisite: REST (unless you are very comfortable with REST)


Introduction to NetKernel : Software for the 21st Century

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Brian Sletten By Brian Sletten

Imagine the simplicity of REST married to the power of Unix pipes with the benefits of a loosely-coupled, logically-layered architecture. If that is hard to imagine, it may because the architectures available to you today are convoluted accretions of mismatched technologies, languages, abstractions and data models.

NetKernel is a disruptive technology that changes the game. It has been quietly gaining mind share in the past several years; people who are exposed to it don't want to go back to the tired and blue conventions of J2EE and .NET. Not only does it make building the kinds of systems you are building today easier, it does it more efficiently, with less code and a far more scalable runway to allow you to take advantage of the emerging multi-core, multi-CPU hardware that is coming our way.

Come see how this open source / commercial product can change the way you think about building software.

NetKernel makes the things you are doing now easier, but also makes new types of systems possible. A wise man once said, "XML is like lye. It is very useful, but humans shouldn't touch it." If you've had to incorporate XML into your project by hand, you have probably been burned by getting too close. NetKernel turns this wisdom on its head and encourages you to use XML like the liquid data stream you want it to be. But, XML is only part of the story. Resource-oriented computing is a generalized and revolutionary approach to modern, flexible systems. There is less code to write, but it is more fun to do. Orchestration of existing services and data sources is faster, easier and more encompas

The Semantic Web : The Future, Now

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Brian Sletten By Brian Sletten

Just as the world is feeling comfortable with the Web, Tim Berners-Lee et al inform us that what we have seen so far is just the beginning. His original plans at CERN were larger and grander. The Semantic Web is a vision of machine-processable documents and metadata to improve search, knowledge discovery and data integration and management. The only problem is that there is no such thing. There is no Semantic Web, just the Web we have that is increasingly semantics-enabled.

Forget the hype. Come learn how the technologies of this vision are being used today on the Web and in the Enterprise by more people than you might think.

Attendees will learn: The history and motivations behind the Semantic Web vision An honest assessment of where we are and what is likely to unfold The technology stack involved (including RDF, RDFS, SKOS and OWL) Tools built around this stack Introduction to how they can help you today

Know your Java?

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Venkat Subramaniam By Venkat Subramaniam

Java has been around for well over a decade now. It started out with the goal of being simple. Over the years, its picked up quite a bit of features and along comes complexity. In this presentation we will take a look at some tricky features of Java, those that can trip you over, and also look at some ways to improve your Java code.

Java features Set of tricks Tips to improve your Java code

BDD in Java and Groovy

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Venkat Subramaniam By Venkat Subramaniam

In this presentation we will take a look at what BDD is and look at tools to create them in Java and Groovy.

What's BDD? Benefits of BDD Tools for BDD Creating BDD in Java Creating BDD in Groovy

Design Patterns in Java and Groovy

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Venkat Subramaniam By Venkat Subramaniam

You're most likely familiar with the Gang-of-four design patterns and how to implement them in Java. However, you wouldn't want to implement those patterns in a similar way in Groovy. Furthermore, there are a number of other useful patterns that you can apply in Java and Groovy. In this presentation we'll look at two things: How to use patterns in Groovy and beyond Gang-of-four patterns in Groovy and Java.

Patterns overview Implementing common patterns in Groovy Beyond Gang-of-four patterns in Java and Groovy Lots of examples

DSL in Groovy

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Venkat Subramaniam By Venkat Subramaniam

DSL or Domain Specific Languages focus on a domain or problem at hand. They're expressive, but their restricted scope keeps them simple and small from the user point of view. However, designing them is not easy. In this presentation we will explore the features of Groovy and show how they can be used to create DSLs.

What's DSL? Characteristics of DSLs Types of DSLs Designing DSLs Groovy features that enable DSLs Examples of DSLs in Groovy Creating DSLs in Groovy

Acceptance Testing Application Behavior

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Venkat Subramaniam By Venkat Subramaniam

How do you ensure your applications meet the expectations of your key customers? In this session we will explore using the FIT tool and Behavior Driven Design tools to do exactly this.

Unit Testing helps you, the programmer, verify your application meets and continues to meet your expectations. But how do you ensure that your application meets and continues to meet the real expectations, those of your domain experts and key customers? We will take a look at two distinct approaches for customer acceptance testing. We will take a look at using FIT for testing behavior and at Behavior Driven Design tools and techniques. Both these approaches can helps us create what is called executable documentation and to stay sane in the world of changing requirements and evolutionary design.

Caring about your Code Quality

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Venkat Subramaniam By Venkat Subramaniam

We all have seen our share of bad code. We certainly have come across some good code as well. What are the characteristics of good code? How can we identify those? What practices can promote us to write and maintain more of those good quality code. This presentation will focus on this topic that has a major impact on our ability to be agile and succeed.

Characteristics of quality code Metrics to measure quality Ways to identify and build quality



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