Trying use agi to listen asterisk.
But after startup method is running, my application is freezing. There is no error appears...
My spring bean:
@Bean(name = "agi")
public DefaultAgiServer getAsteriskAgi() throws Exception {
    DefaultAgiServer agiServer = new DefaultAgiServer();
    agiServer.startup();
    return agiServer;
}
My mapping
public class AsteriskAgi extends BaseAgiScript{
@Override
public void service(AgiRequest agiRequest, AgiChannel agiChannel) throws AgiException {
    // Answer the channel...
    answer();
    // ...say hello...
    streamFile("welcome");
    streamFile("tt-monkeys");
    // ...and hangup.
    hangup();
}
}
my properties file
fastagi-mapping.properties 
located in resources folder
Why is this happening?
UPD Last two console output:
2018-05-21 15:19:53 DEBUG DefaultAgiServer:81 - Using channelFactory org.asteriskjava.fastagi.internal.DefaultAgiChannelFactory
2018-05-21 15:19:53  INFO DefaultAgiServer:315 - Listening on *:4573.