import org.jivesoftware.smackx.workgroup.packet.AgentWorkgroups; //导入依赖的package包/类
public static Collection<String> getWorkgroups(String serviceJID, String agentJID, Connection connection) throws XMPPException {
    AgentWorkgroups request = new AgentWorkgroups(agentJID);
    request.setTo(serviceJID);
    PacketCollector collector = connection.createPacketCollector(new PacketIDFilter(request.getPacketID()));
    // Send the request
    connection.sendPacket(request);

    AgentWorkgroups response = (AgentWorkgroups)collector.nextResult(SmackConfiguration.getPacketReplyTimeout());

    // Cancel the collector.
    collector.cancel();
    if (response == null) {
        throw new XMPPException("No response from server on status set.");
    }
    if (response.getError() != null) {
        throw new XMPPException(response.getError());
    }
    return response.getWorkgroups();
}
 

import org.jivesoftware.smackx.workgroup.packet.AgentWorkgroups; //导入依赖的package包/类
public static Collection<String> getWorkgroups(String serviceJID,
		String agentJID, Connection connection) throws XMPPException {
	AgentWorkgroups request = new AgentWorkgroups(agentJID);
	request.setTo(serviceJID);
	PacketCollector collector = connection
			.createPacketCollector(new PacketIDFilter(request.getPacketID()));
	// Send the request
	connection.sendPacket(request);

	AgentWorkgroups response = (AgentWorkgroups) collector
			.nextResult(SmackConfiguration.getPacketReplyTimeout());

	// Cancel the collector.
	collector.cancel();
	if (response == null) {
		throw new XMPPException("No response from server on status set.");
	}
	if (response.getError() != null) {
		throw new XMPPException(response.getError());
	}
	return response.getWorkgroups();
}
 

import org.jivesoftware.smackx.workgroup.packet.AgentWorkgroups; //导入依赖的package包/类
public static Collection<String> getWorkgroups(String serviceJID, String agentJID, XMPPConnection connection) throws NoResponseException, XMPPErrorException, NotConnectedException {
    AgentWorkgroups request = new AgentWorkgroups(agentJID);
    request.setTo(serviceJID);
    AgentWorkgroups response = (AgentWorkgroups) connection.createPacketCollectorAndSend(request).nextResultOrThrow();
    return response.getWorkgroups();
}