jdk8-mips64-public/langtools: test/tools/javac/lambda/TargetType21.java@db91d860156a

8005179: Cleanup Resolve.AmbiguityError
Summary: Linearize nested ambiguity errors
Reviewed-by: jjg

     1 /*

     2  * @test /nodynamiccopyright/

     3  * @bug 8003280

     4  * @summary Add lambda tests

     5  *  check that candidates with cyclic type-inference are removed from the

     6  *          set of applicable methods

     7  * @compile/fail/ref=TargetType21.out -XDrawDiagnostics TargetType21.java

     8  */

    10 class TargetType21 {

    11     interface SAM1 {

    12         String m1(Integer n) throws Exception;

    13     }

    15     interface SAM2 {

    16         void m2(Integer n);

    17     }

    19     interface SAM3<R,A> {

    20         R m3(A n);

    21     }

    23     void call(SAM1 sam) { }

    24     void call(SAM2 sam) { }

    25     <R,A> void call(SAM3<R,A> sam) { }

    27     void test() {

    28         call(x -> { throw new Exception(); }); //ambiguous

    29         call(x -> { System.out.println(""); }); //ok - resolves to call(SAM2)

    30         call(x -> { return (Object) null; }); //error - call(SAM3) is not applicable because of cyclic inference

    31         call(x -> { return null; }); ////ok - resolves to call(SAM1)

    32     }

    33 }

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