<BUG>import io.vertx.core.Handler;import io.vertx.ext.stomp.utils.Headers;</BUG><CONTEXT>package io.vertx.ext.stomp;<extra_id_0>public class DefaultAckHandler implements Handler<ServerFrame> {@Overridepublic void handle(ServerFrame serverFrame) {</CONTEXT>
import io.vertx.ext.stomp.impl.Transaction;import io.vertx.ext.stomp.impl.Transactions;import io.vertx.ext.stomp.utils.Headers;