Java EE 8 - An instant snapshot (21/5)

Hello JUGgers!

Are you ready for the next event? And ready for a great Java & JVM langs conference this summer in Barcelona? We hope so, we are working hard on that! ;-)

Regarding the next event, we would like to invite you to our next talk focused on the status of Java EE 8 by David Delabassee, the next 21th of May at 7pm at FIB

Java EE 7 has been finalised mid 2013 and from J2EE to Java EE 7, much has changed ... but we are not done yet! Through the years, Java EE has always reinventing itself. Java EE 8 will be no exception to this rule! 

In this session, we will look at the current state of Java EE 8. We will review the various new JSRs that will be part of Java EE 8 (e.g. MVC, JSON-B, Security JSR). We will obviously also look how the existing technologies will evolves in Java EE 8 (e.g. Servlet 4 which brings HTTP/2 support, JMS's plan to replace Message Driven Beans, CDI/EJB alignment, JAX-RS 2.1, etc.).

We will finally conclude this discussion by looking at how you can get involved in those works.

David Delabassee is a Software Evangelist working for Oracle; his primary focus is Java on the Server-Side, i.e. Java Enterprise Edition. Prior to Oracle, David spent a decade at Sun Microsystems focusing on Java end-to-end (from the smart card to the high end server), related technologies and developer tools. In his various roles, David has been involved in numerous Java projects since the early days of this technology. 

David lives in Belgium. In his spare time, he enjoys playing video games with his daughter and tinkering with technologies such as Java, Home Automation, Electronics and Pinballs. You can find him on Twitter using @delabassee

That's it, remember to get your place through our MeetUp, thanks again to FibAlumni. We hope to see you all at FIB next thursday 21st at 7pm!

Java Agents (27/4)

Hi JUGgers!

How's everything? Are you enjoying the spring? Get ready for the summer, in June we will have the 1st Java and JVM langs conference in Spain: JBCNConf!

Getting back to our events, April has become a great month for our events, and this year is not different: we have the pleasure to invite you to our next event focused on Java agents by Oleg Šelajev for the next monday 27th at 7pm at FIB thanks to FibAlumni.

Java agents are pluggable self contained components that run embedded in a JVM and intercept the classloading process. They were introduced in Java 5 along with the powerful java.lang.instrument package. Java agents can be loaded statically at startup or dynamically (programmatically) at runtime to attach to a running process in a fail-safe fashion.

Java agents were an awesome addition to the JVM as it opened a lot of opportunities for tool designers and changed Java tooling landscape quite drastically. In conjunction with Java bytecode manipulation libraries it is now possible to do amazing things to Java classes: we can experiment with programming models, redefine classes in runtime, record
execution flow, etc. In this session Oleg will give an overview of Java agents’ functionality along with the usage examples and real world experiences. We will learn, how to implement an agent and apply Instrumentation API in combination with bytecode manipulation libraries to solve interesting tasks. 

Oleg Šelajev is an engineer, author, speaker, lecturer and advocate at ZeroTurnaround. He spends his time testing, coding, writing, giving conference talks, crafting blogposts and reports. He is also pursuing a PhD on dynamic software updates and code evolution. Oleg enjoys speaking and participating in Java/JVM development conferences such as JavaOne, Devoxxes and others. In his free time, Oleg plays chess at a quater-grandmaster level, loves puzzles and solving all kinds of problems.

That's all folks! Remember to RSVPed and we hope to see you next monday!

Functional programming in Java 8 (20/10)

Hi JUGgers!

Ready to rock this month? We hope so! Get ready, we have nice talks approaching, stay tuned!

Following our talks related to Java8 we would like to invite you to our next talk focused on Functional Programming and Java 8 next 20th of October at 7pm in the auditorium (Building B6) at the Faculty of Computer Science of Barcelona (FIB).

Functional Programming approaches programming as the evaluation of functions that don't alter state or manipulate data. Also, these functions must only generate an output depending on their inputs and must not cause side effects. This derives in a declarative style of programming.

Because Java is (was) imperative, learning to exploit new constructs now available in Java 8 requires a mindshift. Functional Programming is a new paradigm for the average POJO-oriented, Spring-Autowired developer. We will review some of those constructs and then live code a program that uses them.

DISCLAIMER: In this talk we will *not* review Java 8's new syntax nor the Stream API (see for example the talk Stephen Chin gave us about it https://www.youtube.com/watch?v=uTsNNLN2Txk if you are unfamiliar with those).

This talk will be driven by Ignasi Marimon-Clos i Sunyol, a well known Java (now Scala) developer, Software Craftman wannabe and coorganizer of the Scala Developers Barcelona group. Ignasi has a lot of background and experience developing in Java since 2001.

Once again, we have to thank Fib Alumni for their support, for helping us to make this event possible.

Finally, remember to RSVPed as soon as you can, and see you next 20th at FIB!

Productividad con Java 8 y Groovy (29/09)

Muy buenas!

Os invitamos este próximo lunes 29 a una charla de lo más especial y que organizaremos a partir de las 19h en la Sala de Actos (Edif B6) de la Facultad de Informática de Barcelona (FIB): Productividad con Java 8 y Groovy. 

Java 8 esta aquí desde hace unos meses, y como algunos ya sabéis, en esta release se han incorporado mejoras muy importantes que van desde cambios al lenguaje y a las bibliotecas estándar así como nuevas APIs. 

Las mejoras al lenguaje permiten nuevos diseños de APIs, ya que ahora es posible hacer tareas más sencillas que antes eran más complicadas. No debemos olvidar que no sólo se trata de añadir "azúcar sintáctica", los diseñadores del lenguaje se han preocupado también en hacer óptimo el bytecode, aprovechando el mecanismo de invoke dynamic que se introdujo en Java 7. 

Por otro lado Groovy es un lenguaje con mas de 10 años de desarrollo que se ha preocupado por implementar mucha azúcar sintáctica para mejorar la productividad de los desarrolladores, con la llegada de Java 8, Groovy afronta un buen reto debido a la evolución de Java como lenguaje. 

Aprovechando que Domingo Suarez Torres, JVM developer de la Ciudad de México y fundador de SpringHispano.org y Grails.org.mx, está de visita por la ciudad condal, le hemos "pinchado" para que nos charle sobre las Groovy y Java 8... y no se ha negado ;-) Así pues, Domingo nos hablará sobre las mejoras introducidas en Java 8 y como éstas pueden mejorar la productividad de los desarrolladores sin dejar de lado el rendimiento con el código escrito. Nos hará un repaso de Expresiones Lambda, API de Streamming, Method References y Default methods entre otras y también cómo estas funcionalidades pueden ser aprovechadas en Groovy. 

Sentimos anunciar este evento con poca antelación, pero hemos tenido que improvisar lo más rápido que hemos podido para poder ofrecer esta charla por parte de Domingo, antes de que se vuelva a su querido México. 

Ah! También tenemos que agradecer a Fib Alumni por su soporte, ya que realizaremos este evento en gran parte gracias a su colaboración. 

Recuerda de reservar tu plaza en MeetUp, y nos vemos a partir de las 19h en la FIB!