NPE beim Senden von SendbackgroundAcommand an den FreeSwitch -Kunden ⇐ Java

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Ich habe den FreeSwitch-Client von https://github.com/fivetime/esl-client-netty4 heruntergeladen, und ich konnte es ohne Fehler mit Java 17 erstellen. Ich erhalte jedoch jedes Mal, wenn ich versuche, auszuführen sendbackgroundAPICommand () .
Was könnte die Ursache von NPE sein? Habe ich etwas in meiner Client -Initialisierung verpasst?

Code: Select all

public class Main {
private static final Logger log = LoggerFactory.getLogger(Main.class);

private static class DemoEventListener implements IEslEventListener {
@Override
public void onEslEvent(Context ctx, EslEvent eslEvent) {
log.info("Event Name : {}", eslEvent.getEventName());
}
}

public static void main(String[] args) {
SocketAddress host = new InetSocketAddress("freeswitch", 19601);
String password = "fsevent";
int timeoutSeconds = 10;
Client inboundClient = new Client();
try {
inboundClient.connect(host, password, timeoutSeconds);
inboundClient.addEventListener(new DemoEventListener());
inboundClient.setEventSubscriptions(IModEslApi.EventFormat.PLAIN, "all");

// sendApiCommand() works fine
EslMessage response = inboundClient.sendApiCommand( "show", "registrations");
log.info("Registrations total : {}", response.getBodyLines().size());

// it throws NPE
inboundClient.sendBackgroundApiCommand("chat", "sip|1000@172.16.1.114|1001@172.16.1.114|Test case message|text/html");
} catch (Exception e) {
log.error("ERROR: ", e);
} finally {
inboundClient.close();
}
}
}
< /code>
Das vollständige Protokoll -Stacktrace ist unten: < /p>
17:27:50.493 [main] INFO  org.freeswitch.esl.client.inbound.Client - Connecting to freeswitch/172.16.2.161:19601 ...
17:27:50.888 [main] INFO  org.freeswitch.esl.client.inbound.Client - Connected to freeswitch/172.16.2.161:19601
17:27:50.910 [nioEventLoopGroup-2-1] INFO  org.freeswitch.esl.client.inbound.InboundClientHandler - Received message: [EslMessage{contentType=auth/request, headers=1, body=0 lines}]
17:27:50.916 [nioEventLoopGroup-2-1] INFO  org.freeswitch.esl.client.inbound.InboundClientHandler - Received message: [EslMessage{contentType=command/reply, headers=2, body=0 lines}]
17:27:51.152 [main] INFO  org.freeswitch.esl.client.inbound.Client - Authenticated
17:27:51.158 [nioEventLoopGroup-2-1] INFO  org.freeswitch.esl.client.inbound.InboundClientHandler - Received message: [EslMessage{contentType=command/reply, headers=2, body=0 lines}]
17:27:51.161 [nioEventLoopGroup-2-1] INFO  org.freeswitch.esl.client.inbound.InboundClientHandler - Received message: [EslMessage{contentType=api/response, headers=2, body=2 lines}]
17:27:51.162 [main] INFO  org.my_test.netty.Main - Registrations total : 2
17:27:51.166 [nioEventLoopGroup-2-1] INFO  org.freeswitch.esl.client.inbound.InboundClientHandler - Received message: [EslMessage{contentType=command/reply, headers=3, body=0 lines}]
17:27:51.166 [pool-2-thread-1] INFO  org.my_test.netty.Main - Event Name : API
17:27:51.167 [pool-2-thread-1] INFO  org.my_test.netty.Main - Event Name : API
17:27:51.163 [main] ERROR org.my_test.netty.Main - ERROR:
java.lang.NullPointerException: null
at java.base/java.util.concurrent.CompletableFuture.screenExecutor(CompletableFuture.java:455) ~[?:?]
at java.base/java.util.concurrent.CompletableFuture.thenComposeAsync(CompletableFuture.java:2320) ~[?:?]
at org.freeswitch.esl.client.internal.AbstractEslClientHandler.sendBackgroundApiCommand(AbstractEslClientHandler.java:222) ~[esl-client-netty4-0.9.2.jar:?]
at org.freeswitch.esl.client.internal.Context.sendBackgroundApiCommand(Context.java:106) ~[esl-client-netty4-0.9.2.jar:?]
at org.freeswitch.esl.client.inbound.Client.sendBackgroundApiCommand(Client.java:183) ~[esl-client-netty4-0.9.2.jar:?]
at org.my_test.netty.Main.main(Main.java:38) [classes/:?]
17:27:51.182 [nioEventLoopGroup-2-1] INFO  org.freeswitch.esl.client.inbound.InboundClientHandler - Received message: [EslMessage{contentType=command/reply, headers=2, body=0 lines}]
17:27:51.182 [nioEventLoopGroup-2-1] INFO  org.freeswitch.esl.client.inbound.InboundClientHandler - Received message: [EslMessage{contentType=text/disconnect-notice, headers=2, body=2 lines}]
17:27:51.183 [nioEventLoopGroup-2-1] INFO  org.freeswitch.esl.client.inbound.Client - Disconnected ...