/* * Copyright (C) 2008 Google 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. */ package com.google.gson; /** * A simple utility class used to check method Preconditions. * *
* public long divideBy(long value) { * Preconditions.checkArgument(value != 0); * return this.value / value; * } ** * @author Inderjeet Singh * @author Joel Leitch */ final class Preconditions { public static void checkNotNull(Object obj) { checkArgument(obj != null); } public static void checkArgument(boolean condition) { if (!condition) { throw new IllegalArgumentException("condition failed: " + condition); } } }