Here you can find the source of clearClassMapping()
public static void clearClassMapping()
//package com.java2s; /*// w ww. j av a2 s .c om * Copyright 1999-2101 Alibaba Group. * * 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.HashMap; import java.util.concurrent.ConcurrentHashMap; import java.util.concurrent.ConcurrentMap; public class Main { private static ConcurrentMap<String, Class<?>> mappings = new ConcurrentHashMap<String, Class<?>>(); public static void clearClassMapping() { mappings.clear(); addBaseClassMappings(); } public static void addBaseClassMappings() { mappings.put("byte", byte.class); mappings.put("short", short.class); mappings.put("int", int.class); mappings.put("long", long.class); mappings.put("float", float.class); mappings.put("double", double.class); mappings.put("boolean", boolean.class); mappings.put("char", char.class); mappings.put("[byte", byte[].class); mappings.put("[short", short[].class); mappings.put("[int", int[].class); mappings.put("[long", long[].class); mappings.put("[float", float[].class); mappings.put("[double", double[].class); mappings.put("[boolean", boolean[].class); mappings.put("[char", char[].class); mappings.put(HashMap.class.getName(), HashMap.class); } }