Here you can find the source of copy(MimeHeaders headers)
public static MimeHeaders copy(MimeHeaders headers)
//package com.java2s; /*// w w w .java 2s .com * 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 * https://jwsdp.dev.java.net/CDDLv1.0.html * See the License for the specific language governing * permissions and limitations under the License. * * When distributing Covered Code, include this CDDL * HEADER in each file and include the License file at * https://jwsdp.dev.java.net/CDDLv1.0.html If applicable, * add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your * own identifying information: Portions Copyright [yyyy] * [name of copyright owner] */ import java.util.Iterator; import javax.xml.soap.MimeHeader; import javax.xml.soap.MimeHeaders; public class Main { public static MimeHeaders copy(MimeHeaders headers) { MimeHeaders newHeaders = new MimeHeaders(); Iterator eachHeader = headers.getAllHeaders(); while (eachHeader.hasNext()) { MimeHeader currentHeader = (MimeHeader) eachHeader.next(); newHeaders.addHeader(currentHeader.getName(), currentHeader.getValue()); } return newHeaders; } }