test/langtools/tools/javac/lambda/considerExceptionTVarInStuckExprs/ConsiderExceptionTVarsInStuckExprs.java

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/*
 * @test
 * @bug 8254571
 * @summary Erroneous generic type inference in a lambda expression with a checked exception
 * @compile ConsiderExceptionTVarsInStuckExprs.java
 */

class ConsiderExceptionTVarsInStuckExprs {

    public static void test() {
        outer(nested(x -> mightThrow()));
        outer(nested(ConsiderExceptionTVarsInStuckExprs::mightThrow2));
    }

    static <A> void outer(Object o) {}

    static <B, C, E extends Throwable> B nested(Fun<C,E> fun) {
        return null;
    }

    interface Fun<X, Y extends Throwable> {
        void m(X t) throws Y;
    }

    static void mightThrow() throws Exception {}
    static <C> void mightThrow2(C c) throws Exception {}
}