Here you can find the source of quote(final String value)
public static String quote(final String value)
//package com.java2s; /*/*from www . j ava 2 s .c o m*/ * The contents of this file are subject to the terms of the Common Development and * Distribution License (the License). You may not use this file except in compliance with the * License. * * You can obtain a copy of the License at legal/CDDLv1.0.txt. See the License for the * specific language governing permission and limitations under the License. * * When distributing Covered Software, include this CDDL Header Notice in each file and include * the License file at legal/CDDLv1.0.txt. If applicable, add the following below the CDDL * Header, with the fields enclosed by brackets [] replaced by your own identifying * information: "Portions Copyright [year] [name of copyright owner]". * * Copyright 2010?2011 ApexIdentity Inc. * Portions Copyright 2011-2014 ForgeRock AS. */ public class Main { public static String quote(final String value) { if (value == null) { return null; } final StringBuilder sb = new StringBuilder("\""); int length = value.length(); for (int n = 0, cp; n < length; n += Character.charCount(cp)) { cp = value.codePointAt(n); if (cp == '\\' || cp == '"') { sb.append('\\'); } sb.appendCodePoint(cp); } sb.append('"'); return sb.toString(); } }