This document discusses recent developments in Java and related technologies. It begins with introductions of the author and an overview of Java 9 features like JShell, private interface methods, and compact strings. Module system changes and other Java 9 innovations are described. The document then addresses Java EE 8 updates, Microprofile, Spring changes, microservices, and NoSQL. It considers criticisms of Java's perceived complexity and discusses alternative JVM languages. Referenced sources provide additional technical details on topics mentioned.

1. E o Java, hein?

2. Quem sou eu e por que estou aqui?
Antonio Lazaro Carvalho Borges
● antonio.lazaro@gmail.com
● @antonio_lazaro
● https://www.slideshare.net/antoniolazarobr
● https://www.linkedin.com/in/antonio-lazaro-carvalh
o-borges-a78a1514/
● https://pt-br.facebook.com/javabahia
● http://javabahia.blogspot.com.br/
● https://medium.com/javabahia
● https://twitter.com/javabahia
● https://www.youtube.com/soujava

3. Mas o Java não morreu?
Fonte:
http://www.jb.com.br/internacional/noticias/2017/05/01/bbc-homem-mais-velho-do-mundo-
morre-na-indonesia-aos-146-anos/

4. Mas o Java não morreu?
Fonte: http://statisticstimes.com/tech/top-computer-languages.php

5. Mas o Java não morreu?

6. Mas o Java não morreu?
https://insights.stackoverflow.com/survey/2017
http://langpop.corger.nl/

7. Mas o Java não morreu?

8. Vamos as “novidades”?
Fonte: https://www.youtube.com/watch?v=uhgNIRKaB9E

9. Java 9
Fonte: https://digaotutoriais.wordpress.com/2016/04/17/java-9-introducao-ao-jshell-projeto-kulla/

10. Java 9 - Released at 21/09

11. Java 9

12. Java 9 - Alguns pontos
1. Java 9 REPL (JShell)
2. Private methods in Interfaces
3. Strings
4. Java 9 Module System
5. Outras novidades

13. Java 9 - REPL (JShell) - Projeto Kulla
● Ferramenta de linha de comando (JShell = Java + REPL (Read-Eval-Print-Loop)
Fonte: https://digaotutoriais.wordpress.com/2016/04/17/java-9-introducao-ao-jshell-projeto-kulla/
Tutorial para testes: http://blog.caelum.com.br/java-9-na-pratica-repl/

14. Java 9 - Private Methods in interface
Fontes: http://blog.joda.org/2016/09/private-methods-in-interfaces-in-java-9.html
https://www.linkedin.com/pulse/o-java-9-est%C3%A1-pronto-e-voc%C3%AA-fernando-almeida
Java 8 Java 9

15. Java 9 - Strings improvements
● Strings são armazenadas no heap e de acordo com estudos elas
consomem em média 25% do espaço.
● Houve um refactoring na estrutura das strings e ela consumirá 50%
menos de espaço, o que significa menor consumo de memória, bem como
redução de esforço do Garbage Collection
● Basicamente eles armazenam Strings em bytes[] ao invés de usar char[]
quando a representação da String pode ser feita em Latin-1

16. Java 9 - Strings improvements
http://www.baeldung.com/java-9-compact-string?utm_content=bufferce8f0&utm_medium=social&utm_source=twitter.com&utm_campaign=buffer

17. Java 9 - Jigsaw/JPMS (Java Platform Module
System)
● JDK e JRE serão divididos em módulos menores.
● APIs internas da JVM serão encapsuladas
● Arquitetura modular, sua aplicação poderá utilizar os módulos
necessários, gerando aplicações mais leves.
● Módulo = conjunto de pacotes
Fonte: http://www.argonavis.com.br/palestras/tdc2017/tdc_java9.pdf

18. Java 9 - Jigsaw/JPMS (Java Platform Module
System)
Fonte: http://rimdiary.com/jpms/

19. Java 9 - Jigsaw/JPMS (Java Platform Module
System)
http://rimdiary.com/jpms/

20. Java 9 - Outras novidades (ver referências)
1. Reactive Streams (Publish-Subscribe Framework)
2. HTTP 2 Client
3. Process API

21. Java 9 - Mais informações
1. Podcast sobre as novidades do Java 9 e Java EE 8 no Hipsters.tech (Caelum)
com Michel Nascimento (Mr M) :
http://hipsters.tech/e-o-futuro-do-java-hipsters-27/
2. Lista completa features JDK 9:
https://docs.oracle.com/javase/9/whatsnew/toc.htm
3. Onde baixar? http://openjdk.java.net/projects/jdk9/

22. E após o Java 9 -> Java 10? Nops...
Releases semestrais (próxima em março/2018)
http://openjdk.java.net/projects/jdk/18.3/
JEPs targeted to JDK 18.3, so far
286: Local-Variable Type Inference
296: Consolidate the JDK Forest into a Single Repository

23. Microprofile

24. Microprofile

25. Microprofile

26. E o Java EE 8?
Fonte: https://vaadin.com/blog/-/blogs/vaadin-community-survey-learn-more-about-our-users-

27. E o Java EE 8?
Fonte: https://vaadin.com/blog/-/blogs/vaadin-community-survey-learn-more-about-our-users-

28. E o Java EE 8?
Fonte: https://www.slideshare.net/rcuprak/java-ee-8-update

29. E o Java EE 8?
● JSF 2.3 (JSR 372)
a. Websockets
b. Multi-field validation
c. Java time Support
d. UI Data e ui:repeat supports Map and Itarable
● Servlet 4.0 (JSR 369)
a. Support to HTTP 2
● Jax-RS 2.1 (JSR 370)
a. Reactive API
b. Support for SSE (Server Sent Events)
c. Improved CDI Integration
d. Support for Non-blocking IO in Providers

30. E o Java EE 8?
● CDI 2.0 (JSR 365)
a. Java SE BootStrap
b. Asynchronous Events
● Bean validation 2.0 (JSR 380)
a. Support for LocalTime, Optional
b. Customized constraint validations
● JSON-B (JSR 367)
a. Standardize means of converting Json to Java Objects and vice-versa
(Gson, Jackson, etc).
● Java EE Security API (JSR 375)

31. E o Java EE 8 - Released Setembro/2017
● JEE Guardians: https://javaee-guardians.io/
● Adopt a JSR: https://github.com/Adopt-a-JSR
● Oracle Opens up Java EE (fonte: http://sdtimes.com/oracle-opens-java-ee/)

32. E o Java EE 8? - Disponível!

33. E o futuro do Java EE 8?

34. E o Java EE 9? EE4J?
Oracle, IBM, Red Hat and the Eclipse Foundation are creating
this project and opening it up to the community.
5) Why is this named EE4J? Why not continue to
use the Java EE brand?
There will be a new process for evolving the technologies that is different from the Java EE
process. Oracle has also stated its preference for use of a different name. Therefore a
different name is appropriate. So although EE4J is intended to provide compatibility with Java
EE, we are using a different name.

35. E o spring? Para onde vai?
Fonte: https://www.udemy.com/spring-framework-video-tutorial/

36. E o spring? Para onde vai?
● JDK 8 minimum requirement
● Support for Java 9
● Http 2 on client and server
● Reactive streams based controllers
● Support for Kotlin language
● Support for running on a server programmatically
● Testing improvements with Junit 5 suport
● Mais informações:
https://github.com/spring-projects/spring-framework/wiki/What%27s-New-in-the-Spring
-Framework

37. E esse tal de microserviços?
Fonte: http://comunytek.com/en/introduction-to-microservices/

38. E esse tal de microserviços?

39. Nosql
● Spring Data
● JNosql

40. Java é complicado para configurar...

41. Java é complicado para configurar…(Maven archetype)

42. Java é complicado para configurar...Spring Boot

43. Java é complicado para configurar...JHipster

44. Java é complicado para configurar...Pronto, já pode ser
hipster

45. Ah, não gosto de Java (linguagem)

46. Ah, não gosto de Java (linguagem)

47. Ah, não gosto de Java (linguagem)

48. JVM é tão hipster que roda as
linguagens mais hipsters
● Javascript (nashhorn)
● http://j-php.net/
● http://www.jython.org/
● http://jruby.org/

49. Dúvidas?

50. Fim.

51. Referências
● Java 9:
○ http://hipsters.tech/e-o-futuro-do-java-hipsters-27/
○ https://www.linkedin.com/pulse/o-java-9-est%C3%A1-pronto-e-voc%C3%AA-fernando-almeida
○ http://www.java9countdown.xyz/
○ https://docs.oracle.com/javase/9/whatsnew/toc.htm#JSNEW-GUID-C23AFD78-C777-460B-8ACE-58BE5EA681F6
○ http://openjdk.java.net/projects/jdk9/
○ https://en.eventials.com/Globalcode/tdc-sp-2017-stadium-sabado-8/
○ https://dzone.com/articles/jdk-9-is-feature-complete
○ https://www.pluralsight.com/blog/software-development/java-9-new-features
○ https://www.slideshare.net/SimonRitter/55-new-features-in-jdk-9
○ http://blog.takipi.com/5-features-in-java-9-that-will-change-how-you-develop-software-and-2-that-wont/
○ Shell:
■ https://digaotutoriais.wordpress.com/2016/04/17/java-9-introducao-ao-jshell-projeto-kulla/
■ http://blog.caelum.com.br/java-9-na-pratica-repl
○ Private interfaces:
■ https://stackoverflow.com/questions/29040821/java-9-private-interface-methods-example-use-case
■ http://blog.joda.org/2016/09/private-methods-in-interfaces-in-java-9.html
■ http://www.journaldev.com/12850/java9-private-methods-in-interface

52. Referências
○ Strings:
■ https://blogs.oracle.com/java/strings-in-java-9
■ http://cr.openjdk.java.net/~shade/density/state-of-string-density-v1.txt
■ http://vojtechruzicka.com/java-9-compact-strings/
○ Módulos:
■ https://en.eventials.com/Globalcode/tdc-sp-2017-stadium-sabado-8/
■ http://www.devmedia.com.br/introducao-ao-java-9-conheca-os-novos-recursos/34481
■ http://www.argonavis.com.br/palestras/tdc2017/tdc_java9.pdf
■ https://www.pluralsight.com/blog/software-development/java-9-new-features
○ Outras novidades:
■ Reactive streams:
■ http://javasampleapproach.com/java/java-9/java-9-flow-api-reactive-streams
■ http://javasampleapproach.com/java/java-9/java-9-flow-api-example-publisher-and-subscriber
■ http://www.javaworld.com/article/3198904/learn-java/java-9s-other-new-enhancements-part-6-concurrency.html
■ Http 2 client:
■ https://www.infoq.com/articles/Java9-New-HTTP-2-and-REPL
■ https://blog.idrsolutions.com/2017/05/why-http2-client-in-java-9-is-important/
■ https://jaxenter.com/http-2-ready-for-java-9-130105.html
■ https://labs.consol.de/development/2017/03/14/getting-started-with-java9-httpclient.html
■ https://dzone.com/articles/java-9-http-20

53. Referências
■ Process API:
a. http://www.javaworld.com/article/3176874/java-language/java-9s-other-new-enhancements-part-3.html
b. https://blog.oio.de/2016/09/02/process-api-java-9/
c. http://www.baeldung.com/java-9-process-api
○ Java 10:
■
■
■ http://openjdk.java.net/projects/jdk10/
■ Valhalla
■ https://en.wikipedia.org/wiki/Project_Valhalla_(Java_language)
■ https://www.javacodegeeks.com/2016/10/value-project-valhalla.html
■ http://www.oracle.com/technetwork/java/jvmls2016-goetz-3126134.pdf
■ Money:
■ http://javamoney.github.io/
■ http://www.baeldung.com/java-money-and-currency
■ http://www.mscharhag.com/java/java-jsr-354-money-and-currency-api
○

54. Referências
■ Java EE 8:
a. https://www.slideshare.net/rcuprak/java-ee-8-update
b. http://blog.rahmannet.net/2017/03/vaadin-community-survey-confirms-java.html
c. https://javaee-guardians.io/java-ee-adoption-surveys/
d. Java EE Guardians:
i. https://javaee-guardians.io/
ii. http://eldermoraes.com/2017/06/07/top-20-java-ee-experts-to-follow-on-twitter/
e. JSRs:
i. JEE: https://www.jcp.org/en/jsr/detail?id=366
ii. Servlet 4.0: https://jcp.org/en/jsr/detail?id=369
iii. JSON-p 1.1: https://jcp.org/en/jsr/detail?id=374
iv. JSON-B 1.0: https://jcp.org/en/jsr/detail?id=367
v. CDI: 2.0: https://www.jcp.org/en/jsr/detail?id=365
1. https://medium.com/javabahia/finalmente-cdi-2-0-foi-lan%C3%A7ado-2911eec56ac8
2. https://otaviojava.wordpress.com/2016/04/28/cdi-2-0/
3. http://www.cdi-spec.org/news/2017/05/15/CDI_2_is_released/
4. http://www.cdi-spec.org/news/2017/02/01/CDI_2_is_in_public_review/
5. https://www.slideshare.net/ThorbenJanssen/cdi-20-deep-dive
6. http://www.mastertheboss.com/jboss-frameworks/cdi/introduction-to-cdi-2-0-api

55. Referências
i. Bean validation 2.0: https://www.jcp.org/en/jsr/detail?id=380
1. http://beanvalidation.org/news/2016/07/15/bean-validation-2-0-is-coming/
2. http://beanvalidation.org/news/2017/08/07/bean-validation-2-0-is-a-spec/
3. http://beanvalidation.org/
4. http://in.relation.to/2017/08/07/and-here-comes-hibernate-validator-60/
5. http://beanvalidation.org/specification/
6. http://in.relation.to/2017/08/07/and-here-comes-hibernate-validator-60/
ii. JEE Security: https://www.jcp.org/en/jsr/detail?id=375
■ Spring 5:
a. https://spring.io/blog/2016/09/22/new-in-spring-5-functional-web-framework
b. http://www.baeldung.com/spring-5-functional-web
c. https://dzone.com/articles/whats-new-in-spring-framework-5
d. https://dzone.com/articles/new-in-spring-5-functional-web-framework
e. https://www.slideshare.net/AliakseiZhynhiarousk/reactive-spring-framework-5
■

56. Referências
i. Microprofile:
1. https://microprofile.io/faq
2. https://microprofile.io/projects
a. http://tomee.apache.org/apache-tomee.html
b. https://www.payara.fish/
c. https://developer.ibm.com/wasdev/websphere-liberty/
d. http://wildfly-swarm.io/
ii. Microservices:
1. Lagom:
a. https://www.lagomframework.com/
b. https://github.com/lagom/lagom
c. http://www.baeldung.com/lagom-reactive-microservices
d. https://www.infoq.com/news/2016/03/lagom-microservices-framework
2. Vertx
a. http://vertx.io/
b. http://tutorials.jenkov.com/vert.x/index.html
c. https://www.infoq.com/br/news/2012/05/vertx

57. Referências
i. Nosql
1. Jnosql:
a. https://otaviojava.wordpress.com/tag/jnosql/
b. https://github.com/JNOSQL
c. http://jnosql.org/
2. Spring data:
a. http://projects.spring.io/spring-data/
ii. Spring boot:
1. https://projects.spring.io/spring-boot/
2. https://start.spring.io/
iii. JHipster:
1. https://jhipster.github.io/