CryptoMessage v1.3.2版本的 MD5 值为：66c611ce56a11450659dc23697562928

以下内容为反编译后的 Nick.java 源代码，内容仅作参考

package org.jivesoftware.smackx.nick.packet;

import org.jivesoftware.smack.packet.ExtensionElement;
import org.jivesoftware.smack.packet.XmlEnvironment;
import org.jivesoftware.smack.util.StringUtils;
import org.jivesoftware.smack.util.XmlStringBuilder;

public class Nick implements ExtensionElement {
    public static final String ELEMENT_NAME = "nick";
    public static final String NAMESPACE = "http://jabber.org/protocol/nick";
    private final String name;

    @Override
    public String getElementName() {
        return ELEMENT_NAME;
    }

    @Override
    public String getNamespace() {
        return NAMESPACE;
    }

    public Nick(String str) {
        this.name = (String) StringUtils.requireNotNullNorEmpty(str, "Nickname must be given");
    }

    public String getName() {
        return this.name;
    }

    @Override
    public XmlStringBuilder toXML(XmlEnvironment xmlEnvironment) {
        XmlStringBuilder xmlStringBuilder = new XmlStringBuilder(this, xmlEnvironment);
        xmlStringBuilder.rightAngleBracket();
        xmlStringBuilder.escape(getName());
        xmlStringBuilder.closeElement(this);
        return xmlStringBuilder;
    }
}