Mercurial > jdk8-mips64-public > langtools / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/test/tools/javac/lambda/TargetType21.java	Wed Apr 27 01:34:52 2016 +0800
     1.3 @@ -0,0 +1,35 @@
     1.4 +/*
     1.5 + * @test /nodynamiccopyright/
     1.6 + * @bug 8003280
     1.7 + * @summary Add lambda tests
     1.8 + *  check that candidates with cyclic type-inference are removed from the
     1.9 + *          set of applicable methods
    1.10 + * @compile/fail/ref=TargetType21.out -XDrawDiagnostics TargetType21.java
    1.11 + */
    1.12 +
    1.13 +class TargetType21 {
    1.14 +    interface SAM1 {
    1.15 +        String m1(Integer n) throws Exception;
    1.16 +    }
    1.17 +
    1.18 +    interface SAM2 {
    1.19 +        void m2(Integer n);
    1.20 +    }
    1.21 +
    1.22 +    interface SAM3<R,A> {
    1.23 +        R m3(A n);
    1.24 +    }
    1.25 +
    1.26 +    void call(SAM1 sam) { }
    1.27 +    void call(SAM2 sam) { }
    1.28 +    <R,A> void call(SAM3<R,A> sam) { }
    1.29 +
    1.30 +    void test() {
    1.31 +        call(x -> { throw new Exception(); }); //ambiguous
    1.32 +        call((Integer x) -> { System.out.println(""); }); //ok (only one is void)
    1.33 +        call((Integer x) -> { return (Object) null; }); //ok (only one returns Object)
    1.34 +        call(x -> { System.out.println(""); }); //ambiguous
    1.35 +        call(x -> { return (Object) null; }); //ambiguous
    1.36 +        call(x -> { return null; }); //ambiguous
    1.37 +    }
    1.38 +}