/*

 * @test /nodynamiccopyright/

 * @bug 8067883

 * @summary Javac misses some opportunities for diagnostic simplification

 *

 * @compile/fail/ref=T8067883a.out -Xdiags:compact -XDrawDiagnostics T8067883.java

 * @compile/fail/ref=T8067883b.out -Xdiags:verbose -XDrawDiagnostics T8067883.java

 *

 */

import java.util.List;

class T8067883 {

    void testMethod(List<Integer> li) {

        m(null, li);

        m(1, li);

    }

    void testDiamond(List<Integer> li) {

        new Box<>(null, li);

        new Box<>(1, li);

    }

    <Z> void m(List<Z> z, List<String> ls) { }

    static class Box<X> {

        Box(List<X> z, List<String> ls) { }

    }

}