Here you can find the source of removeCustomTime()
public static void removeCustomTime()
//package com.java2s; /*//from w w w . j av a2s . c o m * Scalyr client library * Copyright 2012 Scalyr, 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.atomic.AtomicLong; public class Main { /** * Most recent value passed to setCustomTimeMs, or -1 if no setCustomTimeMs is in * effect. */ private static final AtomicLong customTimeMs = new AtomicLong(-1); /** * Clear any outstanding setCustomTimeMs override, so that subsequent calls to * currentTimeMillis() will return the actual system clock. */ public static void removeCustomTime() { customTimeMs.set(-1); } }