Java tutorial
//package com.java2s; /* * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, * software distributed under the License is distributed on an * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * KIND, either express or implied. See the License for the * specific language governing permissions and limitations * under the License. */ import java.util.Queue; public class Main { /** * Certain types of queues will fail to {@link java.util.Queue#offer(Object)} an item due to many factors * depending on the type of queue. <code>offerUntilSuccess</code> will not return until the item has been * successfully queued onto the desired queue * @param entry item to queue * @param queue queue to add the entry to * @param <T> */ public static <T> void offerUntilSuccess(T entry, Queue<T> queue) { boolean success; do { success = queue.offer(entry); Thread.yield(); } while (!success); } }