Java 9 and Beyond

Aug 5, 20160 likes1,123 views

Mayank Patel

This deck presents what Java 9 brings and what goes away. Also, very high level what you need to do to be prepared.

Mayank Patel
Application Architect - Oildex, a service of Transzap
/Linkedin @maxy_ermayank

Countdown to Java 9 Release Date
Update: Jigsaw Delays Push Java 9 Launch Date to 2017 - Read more
Days until Java 9 is officially released
 Tweet this
2 2 6
11.8.2014
First Features Announced
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3.12.2014
4.5.2015
May the 4th Be With You
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26.5.2016
11.8.2016
All Tests Run
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20.10.2016
26.1.2017
Release Candidate
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23.3.2017
What Is project Jigsaw?
The primary goals of this Project are to:
Make the Java SE Platform, and the JDK, more easily scalable down
to small computing devices;
Improve the security and maintainability of Java SE Platform
Implementations in general, and the JDK in particular;
Enable improved application performance; and
Make it easier for developers to construct and maintain libraries
and large applications, for both the Java SE and EE Platforms.

Features I am excited about
Java + REPL = jshell
Microbenchmarks are coming (Module system)
Will G1 be the new default garbage collector? (There are four
Garbage Collectors)
HTTP 2.0 is the future
The process API just got a huge boost

Microbenchmarks are coming
JMH
Microbenchmark Suite

Will G1 be the new default garbage
collector?
Garbage Collectors - Serial vs. Parallel vs. CMS vs. G1 (and what’s
new in Java 8)
Make G1 the Default Garbage Collector

The process API just got a huge boost
Process API Updates

Modular Run-Time Images
The State of the Module System
Faster startup, smaller footprint

Example
module fi.solita.blogster {
requires fi.solita.iotdriver;
requires java.sql;
exports fi.solita.blogster.alpha;
exports fi.solita.blogster.beta;
}

Versioning Example
module .solita.crawlingturtle @ 0.1 {
requires fi.solita.noisebox @ 1.2;
}

Light Weight JSON API. Money and Currency API

_ no longer allowed as a one-character identi er

What is Going Away?
Disable SHA-1 Certi cates

What can you do to prepare?
Check code for usages of JDK-internal APIs with jdeps
Check code that might be sensitive to the version change
Check code for uses of underscore as an identi er
If you develop tools then check code for a dependency on rt.jar or
tools.jar or the runtime-image layout
Test the JDK 9 EA builds and Project Jigsaw EA builds

Resources
Project jigsaw: Talks
Benjamin Schimd Talk
Examples

The document discusses the impact of Java 9 on Maven projects and provides strategies for Maven and plugins to support Java 9. It outlines changes in Java 9 like the module system and new JAR format that Maven must accommodate. It recommends verifying that plugins work with Java 9 and do not use internal APIs or have duplicate packages. Maven plugins may need to select the module path for compilation in some cases.

Java 9 and the impact on Maven Projects (JavaOne 2016)Robert Scholte

Apache DeltaSpike the CDI toolboxAntoine Sabot-Durand

CDI portable extensions are one of greatest features of Java EE allowing the platform to be extended in a clean and portable way. But allowing extension is just part of the story. CDI opens the door to a whole new eco-system for Java EE, but it’s not the role of the specification to create these extensions. Apache DeltaSpike is the project that leads this brand new eco-system by providing useful extension modules for CDI applications as well as tools to ease the creation of new ones. In this session, we’ll start by presenting the DeltaSpike toolbox and show how it helps you to develop for CDI. Then we’ll describe the major extensions included in DeltaSpike, including 'configuration', 'scheduling' and 'data'.

Java9 and the impact on Maven Projects (JFall 2016)Robert Scholte

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Java 9 will introduce a new module system that will provide code encapsulation and a way to explicitly declare dependencies between modules. Some key changes include the ability to define modules using a module-info.java file, and new parameters for javac and java to support modules. There are still some unresolved issues around module declarations, artifacts, descriptors, graphs, reflection, and versioning that need to be addressed prior to final release. The new module system is aimed at addressing problems like large runtime footprints, classpath issues, and lack of visibility controls between packages.

Java 9 Modularity and Project JigsawComsysto Reply GmbH

Are you interested into getting deep insight into the new features that Project Jigsaw offers in Java 9 ? Project Jigsaw is one of the biggest changes introduced in Java since the launch of the Java programming language back in 1995. It has a great impact on the way we architect and develop Java applications. Project Jigsaw represents a brand new modular system that brings lots of features and empowers developers to build modular applications using Java 9. In this presentation you will see how the entire JDK was divided into modules and how the source code was reorganized around them. You will learn all what you need to know in order to start developing reliable, secure and maintainable modular Java applications with Project Jigsaw. You will see how to define modules and how to compile, package and run a Java application using Jigsaw. You’ll learn how to take advantage of the new module path and how to create modular run-time images that represent smaller and compacter JREs that consist only of the modules you need. Having a Java 7 or 8 application and you are intending to migrate it to Java 9? In this talk you’ll learn how to do it using top-down migration and bottom-up migration. Are you afraid that your application code will break when switching to Java 9? No problem, you’ll see what you should do in order to make your application suitable for Java 9.

Migrating to Java 9 ModulesSander Mak (@Sander_Mak)

With Java 9 modules coming to us soon, you want your existing code to be fully ready for the module system. Making code modular can be a daunting task, but Java 9 comes with a number features to ease migration. This includes automatic modules, the unnamed module and a number of command line arguments. In this talk we will look at examples of migrating real code. It discusses common problems youll run into during migration, leading to practical tips and the ability to set realistic goals. Its also a good way to understand the module system itself and the various migration paths it supports. This talk is an excellent preparation to start migrating your own code. * Understanding modules and the module path * Automatic modules * Mixing classpath and modulepath * Dealing with reflection * Escape switches * Jdeps All topics will be based on examples of often used libraries and frameworks.

Illia shestakov - The Future of Java JDK #9Anna Shymchenko

The document summarizes the key changes and updates coming in JDK 9. Major changes include making Java modular with Jigsaw, which will define modules for the JDK and restructure source code. Internal APIs will be encapsulated and deprecated. Other changes include improved concurrency support with reactive streams, a new stack walking API, enhanced process handling, and an HTTP/2 client API. The release schedule is outlined, with general availability planned for March 2017.

Modular Java applications with OSGi on Apache KarafIoan Eugen Stan

Java modularity: life after Java 9Sander Mak (@Sander_Mak)

With modularity coming to the core Java platform in Java 9, are all our modularity needs fulfilled, or does it still make sense to use something like OSGi? In this talk you will learn how Jigsaw helps modularity, and in what cases it might fall short. Java 9 will provide a module-system, called Jigsaw. Besides modularising the JDK itself, Java developers can build more modular applications with Jigsaw. Modularity and Java go back way longer, though. OSGi, the de facto standard for modularity in Java has been around since 2000. Adoption is increasing in recent years. A modular architecture has many advantages, such as increased decoupling resulting in more flexibility. In that sense, native support for Java modularity is very welcome. The big question now is: does Java 9 provide everything you need to build truly modular applications? Since Java 9 needs to maintain backwards compatibility, some compromises need to be made while enforcing module boundaries. This talk discusses what you really need to build modular applications. We'll investigate which requirements are met (or not) by both module systems. You'll see that both Jigsaw and OSGi provided pieces of the modularity puzzle. Also, you'll learn whether having an additional modular runtime such as OSGi on top of Java 9 still makes sense.

Java 9 Modularity in ActionSander Mak (@Sander_Mak)

With Java 9, modularity comes to your doorstep (whether you ordered it or not). This isn't your average language feature: making the most out of it may involve rewiring your brain. In this session we explore the benefits of a modular codebase using Java 9 modules. Because who doesn’t like more reliable and secure applications, meanwhile killing the dreaded classpath? After reviewing the basic concepts of modules, we'll explore modularity patterns that enhance your design and development skills. We all have existing software, so migration of codebases to a modular world is an important topic as well. Automatic modules and other new concepts are added to your toolbox to this end. Want examples? We've got plenty in this practical and code-driven talk. Even if you intend to use Java 9 without modules, this talk helps you prevent common issues. You'll be ready for Java 9 before you know it. Both speakers are currently writing “Java 9 Modularity” for O’Reilly, expected early 2017. They have extensive experience under the belt already with the Java 9 Jigsaw early access builds.

Testing the Enterprise layers, with ArquillianVirtual JBoss User Group

Arquillian is an innovative and highly extensible testing platform for the JVM that enables developers to easily create automated integration, functional and acceptance tests for Java middleware, from Java EE and beyond. For years we’ve been exploring how to layer and separate our code to test in isolation on the unit level. We’ve kept integration and functional testing as a big ball of mud; jumping straight from unit to full system testing. But can we apply some of the same lessons learned from unit to integration testing? Speaker Bio: Arquillian project lead, Aslak Knutsen, is a Senior Software Engineer at Red Hat where he is working on projects such as Arquillian and ShrinkWrap, one of the founders of the JBoss Testing initiative and a speaker at major industry conferences including JavaOne, Devoxx, Jazoon, JFokus, Geecon, JUDCon and JBoss World.

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This document discusses strategies for modernizing a legacy monolithic application, including using strangler patterns to gradually refactor the monolith into microservices. It outlines approaches like using an API gateway to front the legacy system and new services, as well as methodologies like twelve-factor apps. Key techniques mentioned include feature toggles and service discovery with Eureka.

JDK-9: Modules and Java LinkerBhanu Prakash Gopularam

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Java11 New FeaturesHaim Michael

Implementing your own Google App Engine Virtual JBoss User Group

Google App Engine (GAE) is a popular PaaS offering. Where its scalable and reliable environment is hidden behind a custom API. This makes GAE apps hard to port over to other non-GAE environments. But what if one could implement such similar environment? And you could simply move your GAE application’s .war file to this new environment and it would just work? After all, at the end it’s all about the API, plus scalable and reliable services. JBoss CapeDwarf project aims at making this a reality. This presentation will provide a glimpse into what it takes to implement something as GAE, ranging from runtime integration with JBoss Application Server, actual services implementation to last but not least, automated heavy testing.

Pitfalls of migrating projects to JDK 9Pavel Bucek

Java 9 brings revolutionary changes. There is a big difference between their adoption and adoption of similarly revolutionary features of Java 8: lambdas and streams could gradually be included in a project, but Jigsaw requires some significant changes to the existing code. Jersey and Tyrus are popular open source libraries of considerable size and cherish backward compatibility. This session presents lessons learned during a migration to Java 9 and adoption of Jigsaw features. The nature of the projects and their features—such as resource injection or scanning and using user-provided (thus unknown, in standard dependency view) classes—make the migration particularly interesting and informative for future Java 9 adopters.

Java modules using project jigsaw@jdk 9Mauricio "Maltron" Leal

Project Jigsaw in Java 9 introduces a module system that will modularize the Java platform and enable various improvements. It will allow for strong encapsulation of code and data within modules, improve security and maintainability by hiding non-public APIs, and enable better performance through optimizations and reduced startup time. The modularization also aims to make Java more scalable to small devices and containers by allowing subsets of the platform to be installed.

55 New Features in JDK 9Simon Ritter

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This document discusses dropwizard-testing-integration, a solution for end-to-end testing of Dropwizard services that allows programmatically starting and stopping a Dropwizard instance to run integration tests as part of the build process. It provides examples of setting up and tearing down a Dropwizard instance for tests and notes that the library has only been tested to work with Dropwizard 0.62 and may have issues if multiple instances are started simultaneously.

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Docker is an open source tool that allows developers to package applications into containers to deliver software quickly. It solves problems with slow innovation, inconsistent environments ("works on my machine"), and high support costs by allowing developers to build once and run anywhere. Docker uses containers as a lightweight alternative to virtual machines, allowing applications and their dependencies to run reliably and be isolated from other containers and the underlying infrastructure. Key benefits of Docker include accelerated development, consistency across environments, increased security, easy scaling, and quick remediation of issues.

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This document summarizes best practices for software quality culture, including principles like DRY (Don't Repeat Yourself), separation of code and data, modular code, code reviews, and testing at various levels from unit to system. It emphasizes practices like rigorous refactoring, pair programming with a shared codebase, and a coding standard. Testing is presented as key to achieving high quality, readability, and maintainability through practices like test-first development and celebrating when bugs are found.

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Scala Days 2016 provided an overview of Scala 2.12 and 2.13, as well as new tools and technologies like Dotty and the Scala Center. Scala 2.12 focuses on compiler improvements and stability while 2.13 will focus on libraries. Dotty is a new Scala compiler base using the Dot language. The Scala Center was also announced as a non-profit to support the Scala community. Sessions covered topics like Spark 2.0, Scala.js, Scala Native and more.

Credential store using HashiCorp VaultMayank Patel

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Amazon Web Services EC2 Container Service (ECS)Mayank Patel

Json web tokenMayank Patel

DockerMayank Patel

Quality cultureMayank Patel

Scala days 2016 overviewMayank Patel

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Java 9 and Beyond

1. Java 9 Features

2. Mayank Patel Application Architect - Oildex, a service of Transzap /Linkedin @maxy_ermayank

3. Countdown to Java 9 Release Date Update: Jigsaw Delays Push Java 9 Launch Date to 2017 - Read more Days until Java 9 is officially released  Tweet this 2 2 6 11.8.2014 First Features Announced | | 3.12.2014 4.5.2015 May the 4th Be With You | | 26.5.2016 11.8.2016 All Tests Run | | 20.10.2016 26.1.2017 Release Candidate | | 23.3.2017 What Is project Jigsaw? The primary goals of this Project are to: Make the Java SE Platform, and the JDK, more easily scalable down to small computing devices; Improve the security and maintainability of Java SE Platform Implementations in general, and the JDK in particular; Enable improved application performance; and Make it easier for developers to construct and maintain libraries and large applications, for both the Java SE and EE Platforms.

4. New Features

5. Features I am excited about Java + REPL = jshell Microbenchmarks are coming (Module system) Will G1 be the new default garbage collector? (There are four Garbage Collectors) HTTP 2.0 is the future The process API just got a huge boost

6. REPL = JShell REPL Jshell

7. Microbenchmarks are coming JMH Microbenchmark Suite

8. Will G1 be the new default garbage collector? Garbage Collectors - Serial vs. Parallel vs. CMS vs. G1 (and what’s new in Java 8) Make G1 the Default Garbage Collector

9. HTTP 2.0 is the future HTTP/2 Client

10. The process API just got a huge boost Process API Updates

11. Modular Run-Time Images The State of the Module System Faster startup, smaller footprint

14. Example module fi.solita.blogster { requires fi.solita.iotdriver; requires java.sql; exports fi.solita.blogster.alpha; exports fi.solita.blogster.beta; }

15. Versioning Example module .solita.crawlingturtle @ 0.1 { requires fi.solita.noisebox @ 1.2; }

16. Module vs Package Dependency

17. Light Weight JSON API. Money and Currency API

18. _ no longer allowed as a one-character identi er

19. New Version-String Scheme

20. Java Dependency Analysis Tool

21. What is Going Away? Disable SHA-1 Certi cates

22. What can you do to prepare? Check code for usages of JDK-internal APIs with jdeps Check code that might be sensitive to the version change Check code for uses of underscore as an identi er If you develop tools then check code for a dependency on rt.jar or tools.jar or the runtime-image layout Test the JDK 9 EA builds and Project Jigsaw EA builds

23. How and When I can access ?

24. JDK™ 9 Early Access Releases

25. Resources Project jigsaw: Talks Benjamin Schimd Talk Examples

26. Thank You!

Java 9 and Beyond

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