The document discusses upcoming features and trends in Java, including Java 7, Java EE 6, and the Java ecosystem. Key Java 7 features covered include the fork/join framework for parallel programming and exception handling improvements. It also discusses recent acquisitions that have impacted Java, such as Oracle acquiring Sun Microsystems and VMware acquiring SpringSource.

1. Tomorrow Java
novidades, tendências e espectativas
Rafael Carneiro e Silveira Neto

2. agenda
● java 7
● java EE 6
● cadeia alimentar
● javaFX

3. fork/join framework
class Fibo extends RecursiveTask<Integer>{
final int n;
public Fibo(int n){this.n=n;}
protected Integer compute(){
if(n<=1) return n;
Fibo f1 = new Fibo(n-1); f1.fork();
Fibo f2 = new Fibo(n-2);
return f2.compute() + f1.join();
}
}

4. uso
public class Main {
public static void Main(String args[]){
ForkJoinPool pool = new ForkJoinPool(3);
Fibo fibonacci = new Fibo(20);
pool.execute(fibonacci);
System.out.println(fibonacci.join());
}
}

5. exception handling
try {
/// ...
} catch (Exception1 e1, Exception2 e2) {
// ...
} catch (Exception3 e3) {
// ...
}

6. case switch
String s = ...
switch(s){
case “dog”: ...
break;
case “cat”: ...
break;
default: ...
break;
}

7. type inference
Antes:
Map<String, Integer> map = new HashMap<String,
Integer>();
Agora:
Map<String, Integer> map = new HashMap<>();

8. outras novidades
● Modularização
● Nova coleta de lixo (G1).
● Ponteiros de 64 bits comprimidos.
● InvokeDynamic

9. mas não
● Closures
● Generics refinados
● Sobrecarga de operador
● Sintaxe BigDecimal
● Suporte a XML a nível de linguagem

10. Java EE 6
● Contexts and Dependency Injection for Java
(Web Beans 1.0)
● Java Servlet 3.0
● JavaServer Faces 2.0
● Enterprise JavaBeans 3.1
● Java Persistence 2.0

11. @Stateless @Entity @WebServlet(urlPatterns = "/monster")
@Table(name = "MONSTERTABLE")
@NamedQueries({@NamedQuery(name = "MonsterEJB...
@PersistenceContext(name = "monster..."
public class MonsterServlet extends
HttpServlel{ @Id @GeneratedValue
(strategy = ... private int monsterId;
@Max(2) @NotNull private String name;
@Transient @EJB MonsterServlet monsterEJB;
Por Ludovic Champenois, http://weblogs.java.net/blog/ludo/archive/2009/05/worst_ever_java.html

12. cadeia alimentar
VMWare Oracle
Sun Microsystems
Spring Source

13. VMWare compra SpringSource

15. Oracle compra Sun Microsystems

16. JavaFX

17. Prós

18. Contras

19. Imagens
● Jeff Kubina, “Coffe Beans”
– http://www.flickr.com/photos/kubina/1469914113/
● Jeff Kubina, “Coffe Bean”
– http://www.flickr.com/photos/kubina/1470771024/
● Marcelo Alves, “Coffee”
– http://www.flickr.com/photos/xfer/4124684
● Sjdunphy, “The Roscommon Spaghetti Incident”
– http://www.flickr.com/photos/sjdunphy/531657318/
● Joh Hason, “fish soup”
– http://www.flickr.com/photos/jonhanson/56968305/
● Skalas2 “axis n allies world in war”
– http://www.flickr.com/photos/skalasinc/356616846/
● Alexkerhead, “Cameras and Misc in the Case”
– http://www.flickr.com/photos/alexkerhead/3088082405/

20. mais
● Edans, “La escalera del Hotel Velázquez”
– http://www.flickr.com/photos/edans/499371992/
● E's “coffee break”
– http://www.flickr.com/photos/e-ta-i/6148059/
● AnantaB “2008, New Year Fireworks”
– http://www.flickr.com/photos/anantablamichhane/2152606721/
● Clearly Ambiguous, “Fireworks”
– http://www.flickr.com/photos/clearlyambiguous/183629188/
● Vidalia_11, “Texture - cracked paint”
– http://www.flickr.com/photos/56832361@N00/2476826198/
● BigTallGuy, “Fun @ 10mm”
– http://www.flickr.com/photos/bigtallguy/2492489993/

21. algumas referências
● JDK7 Features
– http://openjdk.java.net/projects/jdk7/features/
● Deep Dive: JDK 7 With Danny Coward
– http://java.sun.com/developer/media/deepdivejdk7.jsp
● SpringSource: Chapter Two
– http://blog.springsource.com/2009/08/10/springsource-chapter-two/
● New features of java7SE presentation
– http://www.slideshare.net/dogangoko/new-features-of-java7-se-presentation
● What's Expected in Java 7
– http://www.slideshare.net/gal.marder/whats-expected-in-java-7-1116123

22. valeu!
slides em http://silveiraneto.net