test/langtools/tools/javac/T8203486/SkipInferenceForNonFunctionalInterfTest.java

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 * 2 along with this work; if not, write to the Free Software Foundation,
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/*
 * @test
 * @bug 8203486
 * @summary skip type inference for non functional interface components of intersection types
 * @compile SkipInferenceForNonFunctionalInterfTest.java
 */

class SkipInferenceForNonFunctionalInterfTest {
    class U1 {}
    class U2 {}
    class U3 {}

    interface SAM<P1 extends U1, P2 extends U2, P3 extends U3> {
        P3 m(P1 p1, P2 p2);
    }

    interface I<T> {}

    class Tester {
        Object method(SAM<U1, U2, U3> sam) {
            return null;
        }

        Object run() {
            return method((SAM<U1, U2, U3> & I<?>) (U1 u1, U2 u2) -> { return new U3(); });
        }
    }
}