Java tutorial
//package com.java2s; /* * Copyright Terracotta, Inc. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * 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.concurrent.ThreadLocalRandom; public class Main { static final void localInit() { // This will kick an init. In ConcurrentHashMap, it is only called after having check if the probe is there, so // there shouldn't be any drawback to do it that way ThreadLocalRandom.current(); } }