Question about latest binary build

[Marcus Thiesen]

Hello List,

I've got a quick question:

Why does:

public class TestSimple {

    public static void main( final String... args ) {

        new Thread( () -> System.out.println("Hello World");
).start();

    }

}

Give:

TestSimple.java:6: error: ')' expected
        new Thread( () -> System.out.println("Hello World"); ).start();
                                                           ^
TestSimple.java:6: error: illegal start of expression
        new Thread( () -> System.out.println("Hello World"); ).start();
                                                             ^
TestSimple.java:6: error: illegal start of expression
        new Thread( () -> System.out.println("Hello World"); ).start();
                                                              ^
TestSimple.java:6: error: ';' expected
        new Thread( () -> System.out.println("Hello World"); ).start();
                                                                    ^
4 errors


Whereas:
import java.util.*;

public class TestSimple2 {

    public static void main( final String... args ) {
        final List<String> testList = new ArrayList<String>();

        final Iterable<Integer> intList = testList.map( e ->
Integer.valueOf( e ) );

    }

}


compiles? I.e. the first example requires curly braces around the
lambda body and the other not?

Thanks,
  Marcus

build 1.8.0-ea-lambda-nightly-h193-20120624-b45-b00
-- 
Marcus Thiesen :: www.thiesen.org :: @mthiesen :: 0173 / 28 01 82 4