Here you can find the source of objectToString(Object obj)
public final static String objectToString(Object obj)
//package com.java2s; /**//from ww w .j a va2 s. c o m * Copyright (c) 2009-2011 VMware, Inc. All Rights Reserved. * * 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. */ public class Main { private static final int MAX_CHARS = 255; public final static String objectToString(Object obj) { String result = "null"; if (obj != null) { String str = obj.toString(); int len = str.length(); if (len > MAX_CHARS) { len = MAX_CHARS; } result = obj.toString().substring(0, len); } return result; } }