1 /*

     2  * @test /nodynamiccopyright/

     3  * @bug 8074381

     4  * @summary java.lang.AssertionError during compiling

     5  * @compile/fail/ref=T8074381b.out -XDrawDiagnostics T8074381b.java

     6  */

     7 import java.util.function.BiConsumer;

     8 import java.util.function.Consumer;

     9 

    10 class T8074381b {

    11 

    12     @SuppressWarnings("unchecked")

    13     public Invocation resolve(Handler handler) {

    14         return new Invocation((t) -> handler.handle((String) t));

    15     }

    16 

    17     public static class Handler {

    18         public void handle(String s) {

    19             System.out.println(s);

    20         }

    21     }

    22 

    23     public static class Invocation<T> {

    24         public final ThrowingConsumer<T> consumer;

    25 

    26         public Invocation(final ThrowingConsumer<T> consumer) {

    27             this.consumer = consumer;

    28         }

    29     }

    30 

    31     @FunctionalInterface

    32     public interface ThrowingConsumer<T> extends BiConsumer<T,Consumer<Throwable>> {

    33         @Override

    34         default void accept(final T elem, final Consumer<Throwable> errorHandler) {

    35             try {

    36                 acceptThrows(elem);

    37             } catch (final Throwable e) {

    38                 errorHandler.accept(e);

    39             }

    40         }

    41 

    42         void acceptThrows(T elem) throws Throwable;

    43     }

    44 }