CastFail17.java

/*
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 * accompanied this code).
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 * 2 along with this work; if not, write to the Free Software Foundation,
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/*
 * @test
 * @bug 4916607
 * @summary Test casts (legal, warning, and errors)
 * @author gafter
 *
 * @compile/fail  CastFail17.java
 */

import java.util.*;

class CastTest {

    // --- Disjoint ---

    private interface DA<T> { }
    private interface DB<T> extends DA<T> { }
    private interface DC<T> extends DA<Integer> { }

    private <N extends Number, I extends Integer, R extends Runnable, S extends String> void disjointness() {
        Object o;

        o = (DA<? extends Runnable>) (DA<? extends String>) null; // <<fail 17>>
    }

}