A little old lady once challenged a well-known scientist’s explanation on the structure of the universe, countering that the world is really a flat plate supported on the back of a giant tortoise. The scientist rebutted the little old lady’s challenge with one of his own by asking what the tortoise was standing on. The little old lady’s sly reply was that it’s, “turtles all the way down.” So too is software architecture “turtles all the way down”.

In this session, we cover a broad range of topics that include challenging traditional practices of software architecture, examining what it takes to bring down the ivory tower, probing the paradoxical aspects of architecture’s goal, and investigating the inextricable link between temporal decisions and structural flexibility. From the highest level applications and services to the code that exists in the bowels of the system, and everything in between, we explore how an effective software architecture must be turtles all the way down. In the end, we will all have gained deep insight to the value of agile architecture.

Modularity is coming to the Java platform! Java 8 will introduce the Jigsaw module system. OSGi is here today. Don’t wait to start designing modular software. Contrary to popular belief, you don't need a framework or a new runtime to start building modular software applications. You can start today. Learn how!

In this session, we'll examine what it means to develop modular software on the Java platform. We'll examine the goals and benefits of modular software, and explore the patterns of modular architecture that help us develop modular software systems. With just a few easy steps, we'll see how to transform our software from a huge monolith to an extensible system of collaborating software modules. By examining an existing software system, we'll see first hand how we can increase software modularity with minimal disruption. You'll walk away not just with a much deeper understanding of the benefits of modular software, but also a migration roadmap for refactoring existing applications to increase their modularity. In other words, you'll see how to get ready today for the application platform of tomorrow.

OSGi was once heralded as a contender for most important technology of the decade. Today, most developers have heard of OSGi, but few are using it to develop their enterprise software applications.Is OSGi failing? Who is using it? And what exactly are its benefits?

In this session, we'll explain the benefits of OSGi, and show that it's not just for the middleware vendor. We'll learn how you can use OSGi without making significant changes to how you write your software applications. We'll explore the OSGi ecosystem, including platforms that support OSGi. Through code examination, we'll see how the Spring framework allows us to leverage OSGi in a non-invasive way. We'll discover how OSGi encourages Polyglot programming on the Java platform. And we'll take a brief glimpse into the future of modularity on the Java platform. You'll walk away with a much better understanding of OSGi, its strengths and benefits, how to use it effectively, as well as the myths surrounding its use.

Monolithic applications are difficult to understand, maintain, and extend with new features and functionality. Modularity helps achieve these goals. Unfortunately, few applications have been designed with modularity in mind. In this workshop, we take a deep dive into modularity.

In part 1, we'll start developing a software system using several of the patterns of modular architecture. We'll explore the patterns and then apply them to develop a sample application. Along the way, we'll discuss implementation variations and the consequences of our decision. When finished, we'll have a simple but useful application that you can take home with you and easily extend with new functionality. This session is all pure Java, and you'll be able to apply the techniques you learn immediately. Be sure to bring a laptop.

Monolithic applications are difficult to understand, maintain, and extend with new features and functionality. Modularity helps achieve these goals. Unfortunately, few applications have been designed with modularity in mind. In this workshop, we take a deep dive into modularity.

In part 2, we'll finish the exercise we began in part 1. We'll continue applying several of the patterns of modular architecture. Upon completing the application, we'll have a short retrospective to discuss the consequences of our design decisions. To wrap up, we'll explore how using a framework (OSGi) that supports modularity extends the benefits of our modular architecture over to runtime without impeding our ability to leverage our modules directly atop standard Java. Be sure to bring a laptop.

Robert Martin assembled the SOLID family of principles to provide a useful guide to help us create object-oriented software designs that were resilient in the face of change. In recent years, the need to write highly-concurrent software in order to leverage increasingly ubiquitous multicore architectures, as well as general interest in more effectively controlling complexity in large software designs, has driven a renewed interest in the functional programming paradigm. Given the apparent similarity in their goals, “What is the intersection of SOLID with functional programming?” is a natural question to ask.

In this talk, we'll explore this intersection. We'll begin with a tour of the evolutionary patterns associated with enterprise software and programming paradigms, as well as take a look at the ongoing quest for best practices, the goal being to elucidate the motivation for examining this intersection of SOLID and functional programming. We'll then walk through each of the SOLID principles, examining them in their original object-oriented context, and looking at example problems and solutions using the Java language. Then for each principle, we'll examine its possible intersection with the functional programming paradigm, and explore the same problems and solutions using the Clojure language. We'll close by examining the transcendent qualities of the SOLID principles and how they can make any design simpler, regardless of the programming paradigm employed.

For much of the last two years I've delivered a two-part series at NFJS shows entitled “Effective Java Reloaded.” For all pracical purposes, it is an ala carte style rehash of the book Effective Java, written by Josh Bloch. One of my favorite parts of the discussion is of Item #15, which tells us to “Minimize Mutability.” If we turn this inside out, we're actually saying that we want to MAXIMIZE IMMUTABILITY. When we do this, we reap many benefits, such as code that is easier to reason about and that is inherently thread-safe. This can carry us a long way in the direction of program correctness and decreased complexity. However, when we start to program with immutability, several major questions arise.

First, the necessity of using a separate object for each distinct value, never reusing, or “mutating” an object, can quickly cause performance concerns. These concerns are amplified when we're talking about large collections such as lists and maps. These problems are largely solved by what we call “persistent data structures.” Persistent data structures are collections from which we create new values, not by copying the entire data structure and apply changes, but by creating a new structure which contains our changes but points at the previous structure for those elements which have not changed. This allows us to work with data structures in a very performant way with respect to time and resource consumption. We'll examine persistent data structures, their associated algorithms, and implementations on the JVM such as those found in the TotallyLazy library.

Second, because all of an immutable object's state must be provided at the time of construction, the construction of large objects can become very tedious and error prone. We'll examine how the Builder pattern can be applied to ease the construction of large objects, and we'll examine Builder implementations in Java and Groovy.

Third, we run into problems when we start to use frameworks that expect us to program in a mutable style. A prime example is Hibernate, which expects our persistent classes to follow the well-worn JavaBean convention, including a no argument constructor and getters and setters for each property. Such a class can never be mutable! So how do we program with frameworks such as Hibernate and yet still minimize mutability? The key is found in not letting frameworks dictate the way that you design your code. Just because the framework require something, don't let it force you to make the wrong decision. Use the framework as a tool to write your code, don't let your code be a tool of the framework. We'll examine strategies for doing exactly that.

You should come away from this talk better equipped to program in a way that minimizes mutability and maximizes immutability.

In recent years, the cloud has gone from Larry Ellison's “Maybe I'm an idiot, but I have no idea what anyone is talking about,” to Microsoft's “TO THE CLOUD!” to a central part of many companies IT strategy. At the same time, the way that we consume the cloud has continued to evolve. Many of today's cloud efforts revolve around utilization of various “infrastructure as code” products (e.g. Puppet and Chef) and homegrown automation to create deployment pipelines. When we start at this level, we often end up reinventing many of the same wheels as we climb the abstraction ladder.

Platform as a Service (PaaS) offerings are positioned to allow developers (and operators) to start climbing the abstraction ladder from a higher rung, shifting the model from machine-centric deployment to application-centric deployment. This session will focus on life as an application developer using Cloud Foundry as a PaaS, with demos using Pivotal's Hosted CF at http://run.pivotal.io.

We'll cover the following topics:

• Hello World: Pushing Java, Ruby, and Node.js apps
• Service Binding: Talking to DB's and other services
• Buildpacks: Flexible application runtime stacks
• “Places to Put Your Stuff”: organizations and spaces
• Promotion Pipelines: Dev to Test to Prod
• Scaling: From 1 instance to 100 instances in 30 seconds or less!
• Health Manager: No more 2 AM support calls…
• Blue-Green Deployments: Zero downtime for your users
• Deploying Cloud Foundry in YOUR data center
• It's Open Source and YOU can contribute!

Workshop Requirements

All parts will require:

• Git (“brew install git”)
• Your favorite Java editor (Eclipse, IntelliJ IDEA, Netbeans)
• The Cloud Foundry CLI - download the latest!

Needless to say you'll need a laptop! For best experience, a Mac or Linux environment is ideal (it's technically possible to get most of this working on Windows, but it's VERY DIFFICULT). Also, you'll need at least 8 GB of RAM to support running Cloud Foundry locally without too much of a performance hit.

Part one of the workshop will require a free account on Pivotal Web Services. You can create a 60-day trial with no credit card at https://run.pivotal.io.

Parts two and four will require the use of BOSH Lite. More instructions will be provided at the conference. But, to ease setup, please install the following dependencies (in addition to those for part one!):

• Virtualbox
• Vagrant
• Ruby 1.9.3 (rbenv or RVM are great options!)
• The BOSH CLI Ruby Gem (after installing Ruby via one of the version managers, “gem install bosh_cli” will do the trick)
• Spiff

An alternative to setting up BOSH Lite if you have trouble with the environment (or you are stuck on Windows!) is to use TryCF. This only requires an AWS account (obviously a credit card required) and an email address, and eliminates the need for this entire dependency list. The estimated cost is 28 cents per hour, so you won't run up a huge bill!

Part Three will require the use of a FREE Cloudbees account. Create one at https://grandcentral.cloudbees.com. Once you're set up, click on “Get Started with Builds” to provision your Jenkins instance. We'll complete the remainder of the setup during the lab, but it's important to get the Jenkins instance provisioned in advance so that you don't lose 10 minutes of workshop time!

It will also require the use of a FREE TRIAL account of Artifactory Online from JFrog. You can obtain an account at https://www.jfrog.com/registration/registration.html. This one is a bit quicker, but you still should try to create it before the workshop.

The basics of developing for the Android platform will be explored, from setting up the SDK to using the Android Studio IDE and the generated Gradle build files. No previous experience is required, other than a basic knowledge of Java.

After discussing how Android fits into the marketplace, we'll look at creating applications, how to use activities, and working with layouts.

Building on the the previous talk, we'll add intents, customized layouts for alternative configurations, talk about the activity lifecycle, use logging, and more.

We'll deploy to both emulators and connected devices, and change input styles.

Groovy isn't designed to replace Java – it just makes Java cleaner and easier to develop. This presentation will look at various tasks Java developers need to do and demonstrate ways Groovy can help.

Topics will include building and testing applications, accessing both relational and NoSQL databases, working with web services, and more.

So you've gotten a handle on Git and know how to use it for everyday development tasks like committing code and pushing and pulling changes with the rest of the team. But do you really know how it works under the covers? In this brief demonstration, we'll commit a file to a brand new repository without ever touching the git add or git commit commands, and in the process learn some critical Git internals that every power user should know.

We'll also take a look at some advanced history and undo commands like reflog and reset, and how to rewrite past mistakes with interactive rebase. Bring your questions and Git challenges for 90 minutes of advanced Git fun!

Most developers think of Git and GitHub as two sides of the same coin, but all too often our attention is focused on the Git side alone, and not on the capabilities of Planet Earth's most-used Git hosting service. More than two million developers have already joined the site that offers amazing features like pull requests, wikis, project pages, integrated web site hosting, issue tracking, metric visualizations, permission controls, and easy integration with third-party services.

Come to this talk to learn how to make better use of GitHub through the site's commonplace and advanced features alike.

There is a good amount of excitement about the new version of Java. The big
evolution of course is the lambda expressions. In this presentation we will dive into the language features in Java 8, take a look at some of their nuances, and look at ways to put them to good use.

Java 8 language capabilities and application.

Programming concurrency has turned into a herculean task. I call the traditional approach as the synchronized and suffer model. Fortunately, there are other approaches to concurrency and you can reach out to those directly from your Java code.

In this presentation we will discuss the actor based concurrency and also the software transaction memory. We will then develop examples using AKKA and compare the power of these approaches in contrast to the traditional approach.

Invoke dynamic is a Java 7 feature that had the most impact at the bytecode level and also in terms of performance. First perceived as a feature to help dynamically typed languages on the JVM, it turned into a powerful feature that has been exploited quite a bit in the implementation of features in the Java
language itself.

In this presentation we will understand what problem this features really solves and how it has influenced other features in the Java language and on the Java platform.

Getting software released to users is often a painful, risky, and time-consuming process. This workshop sets out the principles and technical practices that enable rapid, incremental delivery of high quality, valuable new functionality to users. Through automation of the build, deployment, and testing process, and improved collaboration between developers, testers and operations, delivery teams can get changes released in a matter of hours–sometimes even minutes–no matter what the size of a project or the complexity of its code base.

In this workshop we take the unique approach of moving from release back through testing to development practices, analyzing at each stage how to improve collaboration and increase feedback so as to make the delivery process as fast and efficient as possible. At the heart of the workshop is a pattern called the deployment pipeline, which involves the creation of a living system that models your organization's value stream for delivering software. We spend the first half of the workshop introducing this pattern, and discussing how to incrementally automate the build, test and deployment process, culminating in continuous deployment.

Getting software released to users is often a painful, risky, and time-consuming process. This workshop sets out the principles and technical practices that enable rapid, incremental delivery of high quality, valuable new functionality to users. Through automation of the build, deployment, and testing process, and improved collaboration between developers, testers and operations, delivery teams can get changes released in a matter of hours–sometimes even minutes–no matter what the size of a project or the complexity of its code base.

In this workshop we take the unique approach of moving from release back through testing to development practices, analyzing at each stage how to improve collaboration and increase feedback so as to make the delivery process as fast and efficient as possible. At the heart of the workshop is a pattern called the deployment pipeline, which involves the creation of a living system that models your organization's value stream for delivering software. We spend the first half of the workshop introducing this pattern, and discussing how to incrementally automate the build, test and deployment process, culminating in continuous deployment.

Getting software released to users is often a painful, risky, and time-consuming process. This workshop sets out the principles and technical practices that enable rapid, incremental delivery of high quality, valuable new functionality to users. Through automation of the build, deployment, and testing process, and improved collaboration between developers, testers and operations, delivery teams can get changes released in a matter of hours–sometimes even minutes–no matter what the size of a project or the complexity of its code base.

In the second half of the workshop, we introduce agile infrastructure, including the use of Puppet to automate the management of testing and production environments. We'll discuss automating data management, including migrations. Development practices that enable incremental development and delivery will be covered at length, including a discussion of why branching is inimical to continuous delivery, and how practices such as branch by abstraction and componentization provide superior alternatives that enable large and distributed teams to deliver incrementally.

Getting software released to users is often a painful, risky, and time-consuming process. This workshop sets out the principles and technical practices that enable rapid, incremental delivery of high quality, valuable new functionality to users. Through automation of the build, deployment, and testing process, and improved collaboration between developers, testers and operations, delivery teams can get changes released in a matter of hours–sometimes even minutes–no matter what the size of a project or the complexity of its code base.

In the second half of the workshop, we introduce agile infrastructure, including the use of Puppet to automate the management of testing and production environments. We'll discuss automating data management, including migrations. Development practices that enable incremental development and delivery will be covered at length, including a discussion of why branching is inimical to continuous delivery, and how practices such as branch by abstraction and componentization provide superior alternatives that enable large and distributed teams to deliver incrementally.

This multi-disciplinary session takes a deep dive into
the confluence of topics required to fully understand the intersection
of Continuous Delivery and architecture, including evolutionary
architecture and emergent design, with an emphasis on how
architectural decisions affect the ease in changing and evolving your
code, the role of metrics to understand code, how Domain Driven
Design's Bounded Context reifies in architecture, how to reduce
intra-component/service coupling, and other techniques.

Continuous Delivery is a process for automating the production
readiness of your application every time a change occurs – to code,
infrastructure, or configuration. In the Continuous Delivery world,
rather than hone skills at predicting the future via Big Design Up
Front, Continuous Delivery emphasizes techniques for understanding
and changing code with less cost during the process. Some architectures
and engineering practices yield better designs for this
environment. This multi-disciplinary session takes a deep dive into
the confluence of topics required to fully understand the intersection
of Continuous Delivery and architecture, including evolutionary
architecture and emergent design, with an emphasis on how
architectural decisions affect the ease in changing and evolving your
code, the role of metrics to understand code, how Domain Driven
Design's Bounded Context reifies in architecture, how to reduce
intra-component/service coupling, and other techniques.

Gradle is a compelling new build tool that incorporates the lessons learned from a decade of Ant and Maven. More than just a compromise between declarative and imperative build formats, or between convention and configuration, Gradle is a sophisticated software development platform that simple builds easy and complex, highly automated continuous software delivery pipelines possible to build. Using its extensible APIs and expressive DSL, you're equipped to build your next build.

Bring your laptop to this session for the following:

• Build a Java project
• Resolve transitive dependencies
• Run unit tests
• Build a Groovy project
• Create multi-project, polyglot builds
• Wrap your build with a repeatable version of Gradle
• Extend Gradle with custom tasks
• See the plugin architecture

No matter where you slice software engineering:

• architecture
• technology selection
• process
• etc.

The root cause of many, if not most problems, is the common absence of critical thinking in how we approach decision making. Instead of thinking critically about our engineering decisions, we often follow a Cargo Cult mentality or blindly follow the pronouncements of the Blowhard Jamboree. The end results all too often include suboptimal productivity, excessive spending, poor quality and cancelled projects.

When we think instead critically about a component of software engineering, we take it apart. We discard our presuppositions. We challenge tradition. We gather our own evidence. We question everything.

This talk will examine the pathologies associated with not thinking critically, including a tour of the antipatterns that can emerge from such a practice. We'll then walk through the concentric circles of the critical thinking process, including evidence evaluation, argument evaluation, and argument construction. You'll leave this session with a critical thinking framework which can be applied to software engineering as well as beyond.

Now that you've completed the “Critical Thinking in Software Engineering” lecture, it's time to put your new skills to work. In this session, we'll break up into teams. Each team will be presented with either an argument to evaluate or a problem situation for which you must construct an argument advocating a particular course of action.

Teams will then be responsible for presenting their evaluations and arguments to the group, and the group as a whole will evaluate the presentations.

Topics to include:

• Pair Programming Doesn't Work
• Craftsmanship: Friend or Foe?
• The Code IS the Design
• Rap Genius v. Heroku
• Containers and the Cloud
• Good Morning ORM!
• TDD: Guide or Guard Rail?
• Build Tool Battle Royale
• Our DB is Web Scale!
• To Estimate or Not To Estimate?

After almost a decade and several significant releases, Spring has gone a long way from challenging the then-current Java standards to becoming the de facto enterprise standard itself. Although the Spring programming model continues to evolve, it still maintains backward compatibility with many of its earlier features and paradigms. Consequently, there's often more than one way to do anything in Spring. How do you know which way is the right way?

In this session, we'll explore several ways that Spring has changed over the years and look at the best approaches when working with the latest versions of Spring.

In this presentation, we'll see how to use Spring to create, secure, streamline, hyperlink, and consume REST APIs.

In modern applications, there are a diverse array of clients consuming content from the web. Each of these clients has unique capabilities and limitations, therefore demanding presentation of the application to be tailored to each device. As a result, presentation logic is often pushed into the client itself, leaving the application to serve a common data-oriented lightweight API to be consumed by each client.

In modern applications, Javascript is increasingly prevalent both on the client-side and to some degree on the server-side. As we continue to crank out more Javascript code, we're finding that many of the same hard-lessons we learned in writing decoupled Java code are equally desirable in Javascript code. Without the benefit of dependency injection and AOP, both Java and Javascript code can quickly become an unnavigable and untestable mess.

Where frameworks like Spring have helped us gain control over our Java code, Cujo.js similarly aims to give our Javascript code more structure and testability.

In this session, we'll look at Cujo.js, an “unframework” that provides dependency injection that takes Javascript's unique needs into consideration to create loosely-coupled code. We'll also see how, although Cujo.js isn't strictly a UI framework, elements of Cujo.js can be brought together to elegantly build client-side UIs.

Groovy has a very easy learning curve for Java developers, so many people become Groovy users without realizing all it can do. This presentation will examine features of Groovy that can make your life easier once you're past the initial adoption stage.

Examples will include closure coercion, mixins, simple runtime metaprogramming, operator overloading, drop and take, a tour through some of the overlooked methods in the Groovy JDK, and more.

What do you need to know about combinatorics, number theory, and the underpinnings of public key cryptography? Well, maybe more than you think!

In this talk, we'll explore the branch of mathematics that deals with separate, countable things. Most of the math we learn in school deals with real-valued quantities like mass, length, and time. However, much of the work of the software developer deals with counting, combinations, numbers, graphs, and logical statements: the purview of discrete mathematics. Join us for this brief exploration of an often-overlooked but eminently practical area of mathematics.

Have you ever wished that your local development sandbox could look exactly like production, but you've got a mismatch between your local OS and your production OS? And what about the age old “it works on my machine” excuse that quite often stems from differences between developer sandboxes? Many have turned to virtualization, creating a machine image that can be passed around the team. But who manages the template? How do you keep things in sync?

In this session, we'll explore Vagrant (http://www.vagrantup.com), an open source tool that allows you to easily create and manage virtual development environments that can be provisioned on demand and “thrown away” when no longer needed.

Vagrant is most powerful when we think of it as a tool to enable various workflows that are useful to software development teams. In this talk, we'll walk through the following workflows and examine Vagrant's contributions:

• Software development/spike sandbox management
• New team member onboarding/development workstation management
• Managing production-like environments on developer workstations
• Managing disposable integration testing environments
• Managing production environments

This is the first in a new series on resource-oriented systems. The goal of the series is to provide practical guidance on the design and implementation of next generation systems that are flexible, extensible, high-performance and future-friendly. The talks are designed to work as arc, building upon each other, but they should also stand alone. The first topic is a guided walk through of building quality REST APIs.

We will focus on the architecture of the Web and how it can help us model and manipulate our important business concepts. We will discuss the role of stable identifiers, intentional representation design, hypermedia affordances and architectural consistency. The goal is not to be “RESTful”, the goal is to build systems that display the properties we require.

This talk will be accessible for people new to REST, but also different enough that those who have attended previous REST talks will learn new things.

This is the second in a new series on resource-oriented systems. The goal of the series is to provide practical guidance on the design and implementation of next generation systems that are flexible, extensible, high-performance and future-friendly. The talks are designed to work as arc, building upon each other, but they should also stand alone. This second talk is an introduction to the use of Semantic Web technologies to enable collaboration without coordination.

REST is a means to an end, but it is not a satisfactory end state. It usually pushes complexity to the client in ways that make data integration difficult across multiple sources. The W3C Semantic Web initiative introduces us to new technologies for linking resources and querying across them in powerful new ways. We will learn about the RDF model, what it brings to the table and how we can use it connect information regardless of where and how it is stored. We will use the SPARQL protocol and query language to ask powerful questions of arbitrary resources. We will also see how we can create new information just by asking for it.

This is the third in a new series on resource-oriented systems. The goal of the series is to provide practical guidance on the design and implementation of next generation systems that are flexible, extensible, high-performance and future-friendly. The talks are designed to work as arc, building upon each other, but they should also stand alone. This third talk will introduce you to RDFa, one of the most exciting technologies estimated to be used on at least 25% of the indexed Web.

We understand that documents contain information, but it is usually only accessible to humans if they know where and how to find them. What if we could automatically extract arbitrary information about arbitrary domains and connect it to information held elsewhere? What if we could use the information in a document to help us organize our content better? What if this embedded information could help external search engines index the public Web better and improve your rankings?

This talk will show you how to weave and extract information in HTML, XHTML and arbitrary XML using standard tools such as RDFa. In the process, you will learn how to free the information so that it may be reused in powerful and unanticipated ways.

If you're not terrified, you're not paying attention.

Publishing information as webs of data does not require us to just give it away. We have a series of tools and techniques for managing identity, authentication, authorization and encryption so we only share content with those we trust.

Before we tackle Web Security, however, we need to figure out what we mean by Security. We will pull from the worlds of Security Engineering and Software Security to lay the foundation for technical approaches to protecting our web resources.

Even with the recent explosion in alternative languages for the JVM, the vast majority of us are still writing code in “Java the language” in order to put bread on the table. Proper craftsmanship demands that we write the best Java code that we can possibly write. Fortunately we have a guide in Joshua Bloch's Effective Java.

In his foreward to the first edition, Guy Steele writes about the importance of learning three aspects of any language: grammar, vocabulary, and idioms. Unfortunately many programmers stop learning after mastering the first two. Effective Java is your guide to understanding idiomatic Java programming.

Effective Java is organized into 78 standalone “items,” all of which will be impossible to cover in one session. Instead I've chosen a subset of the most important techniques and practices that are commonly missed by today's Java programmers. You'll pick from a menu and decide where we'll head. Regardless of the path we take, you'll leave this session thoroughly equipped to write better Java code tomorrow!

The Spock framework brings simple, elegant testing to Java and Groovy projects. It integrates cleanly with JUnit, so Spock tests can be integrated as part of an existing test suite. Spock also includes an embedded mocking framework that can be used right away.

In this presentation, we'll look at several examples of Spock tests and review most of its capabilities, including mock objects and integration with Spring.

In this session, we're going to combine the magic of Spring Boot and the magic of Spring Data to yield something even more powerful. You'll see how to quickly build an application's persistence layer, whether it stores data in a RDBMS, Mongo, Neo4j, or several other popular data stores. You'll also see how to create a functioning REST API with nothing more than an interface and a domain type.

Spring Boot dramatically simplifies application development with Spring. But before Spring Boot came along, Spring Data was already making developers' lives easy when it comes to working with data. When combined, Spring Data and Spring Boot can make data persistence the easiest part of your application.

Statistics is hot lately, due in part to the easy availability of large data sets and the successes of people like Nate Silver. These aren't your father's statistics, however. A quiet revolution has swept through the field, shifting it from traditional frequentist methods toward a more Bayesian approach. This talk will discuss Bayes' Theorem and show you how to do simple, back-of-the-envelope calculations to apply it to a wide variety of problems.

In addition, we'll also talk about common errors non-experts make when dealing with statistical conclusions, ranging from small sample size issues to the use of arbitrary endpoints to the problem of overfitting and more.

This is a revised and updated version of the previous talk, with current thinking from practice and the literature. The talk presents why conflicts with your manager are inevitable based on differences in priorities and perspectives, and how to plan for them. The goal is to show you how to build the loyalty relationship that allows you to get what you need when you need it.

Topics covered will include diagnosing communication styles, lessons from game theory, working within the organizational hierarchy, and lessons on how to build a relationship with your manager that still allows you the freedom to express yourself and what you really want.

Time is very precious and is often threatened by phone calls, emails, co-workers, bosses, and most of all, yourself. The Pomodoro Technique reigns in unfocused time and gives your work the urgency and the attention it needs, and it's done with a kitchen timer.

In this presentation we discuss how to set up, estimate time, log time, deal with interruptions, and integrate with Agile as a team. We discuss timer software and even some of the great health benefits of the Pomodoro Technique.

Have you looked into Scala? Scala is a new object-functional JVM language. It is statically typed and type inferred. It is multi-paradigm and supports both object oriented and functional programming. And it happens to be my favorite programming language.

If you are interested in Scala, how you are planning to learn Scala? You probably are going to pick up a book or two and follow through some examples. And hopefully some point down the line you will learn the language, its syntax and if you get excited enough maybe build large applications using it. But what if I tell you that there is a better path to enlightenment in order to learn Scala?

Scala Koans, a set of test cases that will teach you Scala language. The Scala koans will help the audience learn the language, syntax and the structure of the language through test cases. It will also teach the functional programming and object oriented features of the language. Since learning is guided by failing tests it allows developers to think and play with the language while they are learning.

Workshop Requirements

Namaste,

For those planning to attend the Scala Koans…

Welcome to Scala Koans!

Scala Koans is an interactive session that puts the programming and learning in your hands. Therefore, a laptop is required by all participants. If you do not have a laptop, then perhaps you have a friend with a laptop, is so, well, that would work too. In order to participate in the Scala Koan endeavor, a few things are required:

• A laptop
• A modern JDK installation. JDK 1.6+ will suffice. Remember that it should be a JDK and not a JRE!
• Your JDK should be mapped properly to JAVA_HOME and your PATH variables.
• An installation of your favorite IDE or editor.
• An inquisitive mind.

The process of actually running the koans will be covered during the session. Unfortunately, Internet connectivity is sometimes a dicey affair and at times it can rain on our parade. To avoid having to wait for the install at the conference you can prepare for the koans before the conference! If you don't have the opportunity to do this, we will have either memory sticks or private networks at the conference.

If you want to get started with the set up:

1. Download the koans by visiting https://bitbucket.org/dmarsh/scalakoansexercises and click on the download link on the right hand side of the page. (or you can clone the bitbucket project)
2. Unzip the koans: dmarsh-scalakoansexercises-#####.zip
3. cd into the dmarsh-scalakoansexercises-#### folder
4. If you are in Linux or MacOSX run: ./koans, on Windows ./koans.bat
5. After some initialization, you are now in the koans/sbt shell (you should see a > prompt)
6. In the shell run the following commands:
   a. test:compile
   b. eclipse (if you are planning to use Eclipse)
   c. gen-idea (if you are planning to IntelliJ Idea)
7. Exit the shell by typing exit

Before attending the koans session, you may want to take the opportunity to load some Scala Plugins onto your favorite IDE and Editor. Below is a list of resources that you can use to enhance your environment so that you can enjoy Scala syntax highlighting and other helpful tools like refactoring, debugging and analysis.

Eclipse - The Eclipse has an IDE plugin for Scala called aptly scala-ide. All the information about the plugin can be found at http://scala-ide.org including an easy to follow along video located at http://scala-ide.org/docs/current-user-doc/gettingstarted/index.html. Scala-IDE is also available at the Eclipse Marketplace!

IntelliJ - IntelliJ has a Scala plugin that can be found by going to Settings -> Plugins, clicking on 'Browse Repositories' button and searching for the 'Scala' plugin on the left. Right click on the 'Scala' and choose 'Install'. IntelliJ will prompt you to restart the IDE, do so, and enjoy.

NetBeans - Currently, Github user 'dcaoyuan' hosts a NetBeans Scala plugin at the address: https://github.com/dcaoyuan/nbscala. I have not tried this out since the number of NetBeans users has shrunk in recent years. If you are an avid NetBeans user, and wish to try it, you can let me know the results during the session. There is additional information at: http://wiki.netbeans.org/Scala

Emacs - Github user 'aemoncannon' has created 'ENSIME' (ENhanced Scala Interaction Mode for Emacs) at the address and has a great following. https://github.com/aemoncannon/ensime with some documentation at http://aemoncannon.github.io/ensime.

VIM - For VIM users you can use https://github.com/derekwyatt/vim-scala as a VIM plugin that offers Scala color highlighting

That is it. Hope to see you soon.

Presentation on Akka. A set various tools to write concurrent, fault-tolerant applications using immutable data, asyncronous message passing using local and remote actors, software transactional memory, and supervised systems.

Akka is a middleware, but it is not your 1990s middleware. Akka is a set of various tools to write concurrent, fault-tolerant applications using immutable data, asyncronous message passing using local and remote actors, software transactional memory, and supervised systems. Akka is also part of the Typesafe stack, a stack that include the Play web framework and the Scala programming language. This Akka presentation will cover both Scala and Java style usage of Akka and give the audience a 30k view of how it comes together. While this presentation is not interactive, all demos will be available on github for those that want to “play” along with their laptops.

This presentation covers the Guava library developed by Google (http://code.google.com/p/guava-libraries/). Guava provides collection extensions to the Java Collection API and, along with this, a cornucopia of time-saving utilities that bring Java as close as possible to some of the more functional and dynamic language competitors like Scala, Ruby, and Clojure.

This presentation focuses on the following topics: how to make Predicates and Functions; how to use new collection constructs that make life easier, including MultiMap, BiMaps, and MultiSets; how to set up and use Guava preconditions; and how to create truly immutable collections, and more. All of this is done with Java.

The word just came down from the VP - you need a mobile app and you need it yesterday. Wait, you've never built a mobile app…it's pretty much the same thing as you've built before just smaller right? Wrong. The mobile experience is different and far less forgiving. How do you design an application for touch? How does that differ from a mouse? Should you build a mobile app or a mobile web site? This workshop will get you started on designing for a new, and exciting, platform. Whether that means iPhone, Android, Windows Phone or something else, you need a plan, this talk will help.

We'll look at some popular web sites discussing what we would do differently in a mobile context and then take a look at the actual mobile experience to see what other designers actually did. Using paper, we'll work though a design or two of our own. We'll wrap up discussing various methods of creating a mobile app - should we use the web or build something native? What about shell apps? While we might not have all the answers, at the end of this workshop you'll know what questions to ask when thinking through your own situation.

Workshop Requirements

This workshop is more analog than digital - a laptop is not required. A pen or pencil though, is!

The word just came down from the VP - you need a mobile app and you need it yesterday. Wait, you've never built a mobile app…it's pretty much the same thing as you've built before just smaller right? Wrong. The mobile experience is different and far less forgiving. How do you design an application for touch? How does that differ from a mouse? Should you build a mobile app or a mobile web site? This workshop will get you started on designing for a new, and exciting, platform. Whether that means iPhone, Android, Windows Phone or something else, you need a plan, this talk will help.

We'll look at some popular web sites discussing what we would do differently in a mobile context and then take a look at the actual mobile experience to see what other designers actually did. Using paper, we'll work though a design or two of our own. We'll wrap up discussing various methods of creating a mobile app - should we use the web or build something native? What about shell apps? While we might not have all the answers, at the end of this workshop you'll know what questions to ask when thinking through your own situation.

Workshop Requirements

This workshop is more analog than digital - a laptop is not required. A pen or pencil though, is!

You may have noticed today's web applications involve more than a few lines of JavaScript. You've probably also figured out JavaScript lacks certain…features…that make writing non-trivial applications more challenging. How do we resolve this conundrum? Luckily for us, we can leverage libraries like Backbone add some structure to our code. Backbone brings the concepts of the model view controller pattern we've applied to the server for years to the browser.

In this workshop, we'll introduce the idea of asynchronous user interfaces and show how Backbone helps us write that style of application. We'll work our way up from the bottom building a simple application along the way. We'll create models, we'll use a templating library (or two) and we'll also explore Underscore - a JavaScript utility belt you can use right now today without committing to building MVC style web applications.

If you're struggling to manage an increasing amount of JavaScript or you want to build more responsive web applications, this workshop can help!

Workshop Requirements

For this workshop you should have:

• Laptop
• Text editor or IDE
• One or more “modern” (Chrome, Safari, etc) browser

Optionally, you can have Git installed but it isn't required. Before the workshop, take a minute to setup the code somewhere on your laptop. The code is on github:

https://github.com/ntschutta/backbone_workshop

You can clone the repo from there or simply download a zip if you prefer. That's it! See you in Florida!

You may have noticed today's web applications involve more than a few lines of JavaScript. You've probably also figured out JavaScript lacks certain…features…that make writing non-trivial applications more challenging. How do we resolve this conundrum? Luckily for us, we can leverage libraries like Backbone add some structure to our code. Backbone brings the concepts of the model view controller pattern we've applied to the server for years to the browser.

In this workshop, we'll introduce the idea of asynchronous user interfaces and show how Backbone helps us write that style of application. We'll work our way up from the bottom building a simple application along the way. We'll create models, we'll use a templating library (or two) and we'll also explore Underscore - a JavaScript utility belt you can use right now today without committing to building MVC style web applications.

If you're struggling to manage an increasing amount of JavaScript or you want to build more responsive web applications, this workshop can help!

Workshop Requirements

For this workshop you should have:

• Laptop
• Text editor or IDE
• One or more “modern” (Chrome, Safari, etc) browser

Optionally, you can have Git installed but it isn't required. Before the workshop, take a minute to setup the code somewhere on your laptop. The code is on github:

https://github.com/ntschutta/backbone_workshop

You can clone the repo from there or simply download a zip if you prefer. That's it! See you in Florida!

JSON is more than just a simple replacement for XML when you make an AJAX call. JSON is becoming the backbone of any serious data interchange over the Internet. All modern languages have excellent JSON API support. There are emerging standards and best practices that can be used to harness the energy and enthusiasm around JSON to build truly elegant, useful, and efficient applications. You’re already using JSON, and you may be thinking:

• What else is there to talk about?
• What additional tools and standards are available, and why do they matter?
• Everything is great, so how would these tools and standards help?*
• What is JSON Schema and when/how do I use it?

In this presentation, we’ll cover:

JSON Overview

• JSON Beginnings - language review, best practices
• JSON Tooling
• JSON in Java

The JSON Ecosystem

• Structuring JSON (JSON Schema)
• RESTing with JSON
  Modeling - JSONPad
  Browser Plugins
  ** Prototyping and testing – JSON Generator, Firebase
• Text Search with JSON
• Transforming JSON

Attendees will learn the basics of JSON and how to leverage this exciting technology in new ways to enhance their RESTful architecture and development efforts.

As a web application developer, most of the focus is on the user stories and producing business value for your company or clients. Increasingly however the world wide web is more like the wild wild web which is an increasingly hostile environment for web applications. It is absolutely necessary for web application teams to have security knowledge, a security model and to leverage proper security tools.

This training workshop on security will provide an overview of the security landscape starting with the OWASP top ten security concerns with current real world examples of each of these attack vectors. The first session will consist of a demonstration and labs using hacker tools to get an understanding of how a hacker thinks. It will include a walk through of the ESAPI toolkit as an example of how to solve a number of these security concerns including hands-on labs using the OWASP example swingset.

The workshop will include several hands on labs from the webgoat project in order to better understand the threats that are ever so common today.

Attendees will come away with the following skills / capabilities:

• threat modeling
• security audit plan
• introduction to Pen testing
• key / certificate management
• fixing web application security issues

Don't be the weakest link on the web!

As a web application developer, most of the focus is on the user stories and producing business value for your company or clients. Increasingly however the world wide web is more like the wild wild web which is an increasingly hostile environment for web applications. It is absolutely necessary for web application teams to have security knowledge, a security model and to leverage proper security tools.

This training workshop on security will provide an overview of the security landscape starting with the OWASP top ten security concerns with current real world examples of each of these attack vectors. The first session will consist of a demonstration and labs using hacker tools to get an understanding of how a hacker thinks. It will include a walk through of the ESAPI toolkit as an example of how to solve a number of these security concerns including hands-on labs using the OWASP example swingset.

The workshop will include several hands on labs from the webgoat project in order to better understand the threats that are ever so common today.

Attendees will come away with the following skills / capabilities:

• threat modeling
• security audit plan
• introduction to Pen testing
• key / certificate management
• fixing web application security issues

Don't be the weakest link on the web!

There is nothing better than looking at real-world examples to understand project failures and project successes. This session is intended to be an open conversation, based closely to a birds of a feature (BOF) session, however it will have a series of “that happened to me” topics throughout discussed from the perspective of technology.

Discussed will be a clients dating back from 2005. The actually client and there name will not be revealed, but the industry, the contraints and some of the outcomes will.

Of all the non-functional requirements of software development, complexity receives the least attention and seems to be the most important from a long term standard point. This talk will look at some of forces that drive complexity at the code level and at a system level and their impact. We will discuss what causes us to over look complexity, how our perception of it changes over time and what we can do about it?

In this session we will break down the meaning of complexity and simplicity and measure the application of those means against the common software development dogma. Looking at common development trends and pressures, we'll discuss where simplify does and doesn't help. We will examine areas of development which at first glance seem to be simple (such as the creation of an equals method in Java), that end up being difficult or impossible based on normal constraints. We will example the drivers of complexity with some discussion on what you can do about it. This session will finish with a discussion around several challenges to high scale software architectures and how to keep it simple.

The net has cracks and crackers are among us. With all the news of security failures, it can be a challenge to know what is FUD and what is really at risk and to what extent. This session isn’t about hacking an application together nor is it about coding a solution. It is about looking at the network and network infrastructure and understanding some of its weaknesses. This workshop is a 50% mix of lecture / discussion and hands on attacking in order to best understand the challenges.

The labs will require the use of:

• a virtual machine with BackTrack 5
• a wifi adaptor
• and a laptop.

We will have ISO installations of BackTrack 5 for you to install on your VM. It is best if you have this pre-installed, it can be downloaded at http://www.backtrack-linux.org/ . In order to run backtrack, you will want to install this to a virtual machine, if this is new to you, pick up virtualbox or vmware.

The wifi adaptor needed is an Alfa AWUS036H or Alfa AWUS036NHA. You will need 1 of these external adaptors. There are ~ $30 at amazon.

Through the labs we will:

• Disassociate wireless traffic
• Crack a WEP key
• Learn to break through a WPA device
• Scan for open ports

The net has cracks and crackers are among us. With all the news of security failures, it can be a challenge to know what is FUD and what is really at risk and to what extent. This session isn’t about hacking an application together nor is it about coding a solution. It is about looking at the network and network infrastructure and understanding some of its weaknesses. This workshop is a 50% mix of lecture / discussion and hands on attacking in order to best understand the challenges.

The labs will require the use of:

• a virtual machine with BackTrack 5
• a wifi adaptor
• and a laptop.

We will have ISO installations of BackTrack 5 for you to install on your VM. It is best if you have this pre-installed, it can be downloaded at http://www.backtrack-linux.org/ . In order to run backtrack, you will want to install this to a virtual machine, if this is new to you, pick up virtualbox or vmware.

The wifi adaptor needed is an Alfa AWUS036H or Alfa AWUS036NHA. You will need 1 of these external adaptors. There are ~ $30 at amazon.

Through the labs we will:

• Disassociate wireless traffic
• Crack a WEP key
• Learn to break through a WPA device
• Scan for open ports

This session will move beyond the basics cover Android persistence mechanisms, accessing RESTful web services, and more. We'll look at shared preferences, basic file I/O, and the Sqlite database. We'll also show how to operate off of the UI thread to access data from remote servers.

The application will access JSON data on a remote server, parse the data, and update the user interface based on the response.

“That's the way we've always done things”, is a phrase commonly uttered over the course of a software development project. But often times, organizations have instituted governance and policy based on yesterday's practices. We continue with these dated policies without ever examining their origin and whether they are necessary or provide any true value today. These policies serve as gates, which often times impede progress. The story of Chesterton's Gate encourages us to ask “Why” something is necessary before we decide if it's beneficial to remove it. In this session, we examine several “gates” across several industries, including software development, and ask “Why” to determine if it's still needed.

In this session, we examine examples (many of them quite humorous) of Chesterton's Gate, including several from our world of software development.