1 /*

     2  * Copyright (c) 2015, 2018, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.  Oracle designates this

     8  * particular file as subject to the "Classpath" exception as provided

     9  * by Oracle in the LICENSE file that accompanied this code.

    10  *

    11  * This code is distributed in the hope that it will be useful, but WITHOUT

    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    14  * version 2 for more details (a copy is included in the LICENSE file that

    15  * accompanied this code).

    16  *

    17  * You should have received a copy of the GNU General Public License version

    18  * 2 along with this work; if not, write to the Free Software Foundation,

    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    20  *

    21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    22  * or visit www.oracle.com if you need additional information or have any

    23  * questions.

    24  */

    25 

    26 /**

    27  * <h2>High level HTTP and WebSocket API</h2>

    28  *

    29  * <p> Provides high-level client interfaces to HTTP (versions 1.1 and 2) and

    30  * WebSocket. The main types defined are:

    31  *

    32  * <ul>

    33  *    <li>{@link java.net.http.HttpClient}</li>

    34  *    <li>{@link java.net.http.HttpRequest}</li>

    35  *    <li>{@link java.net.http.HttpResponse}</li>

    36  *    <li>{@link java.net.http.WebSocket}</li>

    37  * </ul>

    38  *

    39  * <p> The API functions asynchronously (using {@link java.util.concurrent.CompletableFuture})

    40  * and work is done on the threads supplied by the client's {@link java.util.concurrent.Executor}

    41  * where practical.

    42  *

    43  * <p> {@code HttpClient} also provides a simple synchronous mode, where all

    44  * work may be done on the calling thread.

    45  *

    46  * <p> {@code CompletableFuture}s returned by this API will throw {@link java.lang.UnsupportedOperationException}

    47  * for their {@link java.util.concurrent.CompletableFuture#obtrudeValue(Object) obtrudeValue}

    48  * and {@link java.util.concurrent.CompletableFuture#obtrudeException(Throwable) obtrudeException}

    49  * methods. Invoking the {@link java.util.concurrent.CompletableFuture#cancel cancel}

    50  * method on a {@code CompletableFuture} returned by this API will not interrupt

    51  * the underlying operation, but may be useful to complete, exceptionally,

    52  * dependent stages that have not already completed.

    53  *

    54  * <p> Unless otherwise stated, {@code null} parameter values will cause methods

    55  * of all classes in this package to throw {@code NullPointerException}.

    56  *

    57  * @since 11

    58  */

    59 package java.net.http;