Valid java 5 code refuses to compile with lambda-8-b81-linux-x64-12_mar_2013

[Grégoire Neuville]

Hello,

First of all, let me thank and congratulate you for the hard work you're
putting into adding a functional tone to java : this is a great move that
will undoubtedly prove itself immensely beneficial.

That being said, I'm having a hard time compiling some basic java 5 code
with the binary pre-release of both the bare jdk 1.8 and the
lambda-enriched one. Indeed, trying to compile the below code :

<code>

 public class TestJ8 {

    interface Func<A, B> {
        B f(A a);
    }

    class List<A> {

        <B> List<B> map(Func<A, B> f) {
            return null;
        }

        <B> List<B> bind(Func<A, List<B>> f) {
            return null;
        }

        <B> List<B> apply(final List<Func<A, B>> lf) {
            return lf.bind(this::map);
        }

        <B, C> List<C> bind(final List<B> lb, final Func<A, Func<B, C>> f) {
            return lb.apply(map(f)); // fails to compile
        }

    }

}

</code>

fails with the given message :  error: method apply in class TestJ8.List<A>
cannot be applied to given types

Is it expected behaviour or am I missing something (installation steps or
whatever...) ?

Note : The compiler is invoked through maven with the following
configuration :

<plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>3.0</version>
            <configuration>
                <verbose>true</verbose>
                <fork>true</fork>
                <executable>/usr/lib/jvm/java8/bin/javac</executable>
                <compilerArgument>-g</compilerArgument>
                <compilerVersion>1.8</compilerVersion>
                <source>1.8</source>
                <target>1.8</target>
            </configuration>
</plugin>

Thanks !

-- 
Grégoire Neuville