The major new feature of Java 9 is the Jigsaw module system, which provides the benefits of reliable configuration and strong encapsulation to Java libraries, frameworks, and applications. We'll cover the basics of modularity in Java, how to build a modular application, and how to migrate existing applications or libraries to modular ones in JDK9.

Lecture workshop

As core counts continue to increase, how we exploit hardware parallelism in practice shifts from concurrency — using more cores to handle more user requests — to parallelism — using more cores to solve data-intensive problems faster. This talk will explore the different goals, tools, and techniques involved between these various approaches, and how to analyze a computation for potential parallelism, with specific attention to the parallel stream library in Java.

Types, testability, tooling, paradigms, productivity, managed, native, concurrency, parallelism, performance, asynchrony, integrations, memory management, security, resilience, or, maybe, simple readability? What are the important things crossing the minds of language designers today as they build new languages or evolve the tried and trusted ones?

QCon convenes a panel of four language designers. These are people at the heart of questions like these. The computer science language panel is led by Martin Thompson and participants include:

• Brian Goetz (Java)
• Joe Duffy (Midori, C# Fork)
• Felix Klock (Rust)
• Sylvan Clebsch (Pony)

Come hear Martin ask the hard questions on choices made (past and future) and hear the discussion from the people behind some of the largest and most innovative languages in use by developers today.