FULL PRODUCT VERSION :
java version " 1.8.0-ea "
Java(TM) SE Runtime Environment (build 1.8.0-ea-b94)
Java HotSpot(TM) 64-Bit Server VM (build 25.0-b36, mixed mode)

ADDITIONAL OS VERSION INFORMATION :
Darwin Trungs-MacBook-Pro.local 12.4.0 Darwin Kernel Version 12.4.0: Wed May 1 17:57:12 PDT 2013; root:xnu-2050.24.15~1/RELEASE_X86_64 x86_64

A DESCRIPTION OF THE PROBLEM :
Lambda function did not return correct values.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
> javac Bug.java
> java Bug
T T : wrong outcome
F T : right outcome




REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
import java.util.*;
import java.util.function.Function;

public class Bug {

    public static <P, Q> Iterator<Q> makeIterator(Iterator<P> iterator, Function<P, Q> extractor) {
        if (iterator == null) {
            return Collections.emptyIterator();
        }

        return new Iterator<Q>() {
            @Override
            public boolean hasNext() {
                return iterator.hasNext();
            }

            @Override
            public Q next() {
                P next = iterator.next();
                Q value = extractor.apply(next);
                return value;
            }

            @Override
            public void remove() {
                throw new UnsupportedOperationException();
            }
        };
    }

    public static <P, Q> Iterable<Q> makeIterable(Iterable<P> iterable, Function<P, Q> extractor) {
        if (iterable == null) return Collections.emptyList();

        return () -> makeIterator(iterable.iterator(), extractor);
    }

    public static Iterable<Boolean> makeIterable(final boolean[] a) {
        return () -> new Iterator<Boolean>(){
            private int index = 0;
            @Override
            public boolean hasNext() {
                return index < a.length;
            }

            @Override
            public Boolean next() {
                return a[index++];
            }
        };
    }

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

        boolean[] a = new boolean[]{false, true};

        for (String s : makeIterable(makeIterable(a), (b) -> b ? " T " : " F " )) {
            System.out.print(s);
            System.out.print(' ');
        }
        System.out.println( " : wrong outcome " );

        Function<Boolean, String> f = (b) -> b ? " T " : " F " ;
        for (String s : makeIterable(makeIterable(a), f)) {
            System.out.print(s);
            System.out.print(' ');
        }
        System.out.println( " : right outcome " );

    }

}

---------- END SOURCE ----------