aoqi@0: /*
aoqi@0:  * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
aoqi@0:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0:  *
aoqi@0:  * This code is free software; you can redistribute it and/or modify it
aoqi@0:  * under the terms of the GNU General Public License version 2 only, as
aoqi@0:  * published by the Free Software Foundation.
aoqi@0:  *
aoqi@0:  * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@0:  * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0:  * accompanied this code).
aoqi@0:  *
aoqi@0:  * You should have received a copy of the GNU General Public License version
aoqi@0:  * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0:  *
aoqi@0:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0:  * or visit www.oracle.com if you need additional information or have any
aoqi@0:  * questions.
aoqi@0:  */
aoqi@0: 
aoqi@0: /*
aoqi@0:  * @test
aoqi@0:  * @bug 8016081 8016178
aoqi@0:  * @summary structural most specific and stuckness
aoqi@0:  * @compile T8016177f.java
aoqi@0:  */
aoqi@0: import java.util.*;
aoqi@0: 
aoqi@0: class T8016177f {
aoqi@0: 
aoqi@0:     interface Function<S, T> {
aoqi@0:        T apply(S s);
aoqi@0:     }
aoqi@0: 
aoqi@0:     interface IntFunction<T> {
aoqi@0:        T apply(int s);
aoqi@0:     }
aoqi@0: 
aoqi@0: 
aoqi@0:     interface BiConsumer<X,Y> {
aoqi@0:        void m(X x, Y y);
aoqi@0:     }
aoqi@0: 
aoqi@0:     interface Consumer<X> {
aoqi@0:        void m(X x);
aoqi@0:     }
aoqi@0: 
aoqi@0:     interface Supplier<X> {
aoqi@0:        X make();
aoqi@0:     }
aoqi@0: 
aoqi@0:     interface TestData<T, S extends BaseStream<T, S>> {
aoqi@0:        interface OfRef<T> extends TestData<T, Stream<T>> { }
aoqi@0:        interface OfDouble extends TestData<Double, DoubleStream> { }
aoqi@0:     }
aoqi@0: 
aoqi@0:     interface BaseStream<T, S extends BaseStream<T, S>> { }
aoqi@0: 
aoqi@0:     interface Stream<T> extends BaseStream<T, Stream<T>> {
aoqi@0:        <M> Stream<M> map(Function<T, M> s);
aoqi@0:        <R> R collect(Supplier<R> resultFactory, BiConsumer<R, ? super T> accumulator, BiConsumer<R, R> combiner);
aoqi@0:        <Z> Z[] toArray(IntFunction<Z[]> s);
aoqi@0:     }
aoqi@0: 
aoqi@0:     interface DoubleStream extends BaseStream<Double, DoubleStream> {
aoqi@0:        DoubleStream filter(DoublePredicate dp);
aoqi@0:        double[] toArray();
aoqi@0:     }
aoqi@0: 
aoqi@0:     interface DoublePredicate {
aoqi@0:        boolean p(double d);
aoqi@0:     }
aoqi@0: 
aoqi@0:     <T, U, R, S_IN extends BaseStream<T, S_IN>, S_OUT extends BaseStream<U, S_OUT>>
aoqi@0:            R exerciseTerminalOps(TestData<T, S_IN> data,
aoqi@0:                                  Function<S_IN, S_OUT> streamF,
aoqi@0:                                  Function<S_OUT, R> terminalF) { return null; }
aoqi@0: 
aoqi@0:     <O> TestData.OfRef<O> ofCollection(Collection<O> collection) { return null; }
aoqi@0: 
aoqi@0:     void test1(TestData.OfDouble data, DoublePredicate dp) {
aoqi@0:         exerciseTerminalOps(data, s -> s.filter(dp), s -> s.toArray());
aoqi@0:     }
aoqi@0: 
aoqi@0:     void test2(Function<Double, Integer> fdi, TestData.OfRef<Double> td, Stream<Integer> si) {
aoqi@0:         exerciseTerminalOps(
aoqi@0:                         ofCollection((List<Double>)null),
aoqi@0:                         s -> s.map(fdi),
aoqi@0:                         s -> s.toArray(Integer[]::new));
aoqi@0:     }
aoqi@0: }