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  1. AMQ Broker
  2. ENTMQBR-1695

NullPointerException when converting message sent by Rhea JavaScript client from AMQP to OpenWire

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    • AMQ 7.2.0.GA
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      See the test in Description, or you can use QE clis:

      + means process was started, ! means output to stderr (logging), / means cli existed.

      17164 + node bin/sender-client.js --log-lib=TRANSPORT_FRM --log-msgs interop --count 1 --msg-correlation-id corr-id-4 --address JAMQMsgPatterns0b7TestssDbvJpl
      17164 ! 2018-06-21T14:09:12.950Z rhea:frames [connection-1] PENDING: '{"channel":0,"type":0,"performative":["a3da0d82-00ca-8e4c-9f77-8451f8ce558d",null,null,null,null,null,null,null,null,[]]}'
      17164 ! 2018-06-21T14:09:12.951Z rhea:frames [connection-1] PENDING: '{"channel":0,"type":0,"performative":[null,0,2048,4294967295]}'
      17164 ! 2018-06-21T14:09:12.952Z rhea:frames [connection-1] PENDING: '{"channel":0,"type":0,"performative":["645fdd98-aefc-5048-a12a-d9864eece9c1",0,false,null,null,[],["JAMQMsgPatterns0b7TestssDbvJpl",0],null,null,0]}'
      17164 ! 2018-06-21T14:09:12.960Z rhea:frames [connection-1] RECV: { protocol_id: 0, major: 1, minor: 0, revision: 0 }
      17164 ! 2018-06-21T14:09:12.961Z rhea:frames [connection-1] RECV: '{"size":188,"type":0,"channel":0,"performative":{"type":"open#10","container_id":"amq","max_frame_size":131072,"channel_max":65535,"idle_time_out":30000,"offered_capabilities":["sole-connection-for-container","DELAYED_DELIVERY","SHARED-SUBS","ANONYMOUS-RELAY"],"properties":{"product":"apache-activemq-artemis","version":"2.6.1.amq-720003-redhat-1"}}}'
      17164 ! 2018-06-21T14:09:12.963Z rhea:frames [connection-1] RECV: '{"size":34,"type":0,"channel":0,"performative":{"type":"begin#11","next_outgoing_id":1,"incoming_window":2147483647,"outgoing_window":2147483647,"handle_max":65535}}'
      17164 ! 2018-06-21T14:09:12.963Z rhea:frames [connection-1] RECV: '{"size":100,"type":0,"channel":0,"performative":{"type":"attach#12","name":"645fdd98-aefc-5048-a12a-d9864eece9c1","role":true,"snd_settle_mode":2,"source":[],"target":["JAMQMsgPatterns0b7TestssDbvJpl"]}}'
      17164 ! 2018-06-21T14:09:12.964Z rhea:frames [connection-1] RECV: '{"size":34,"type":0,"channel":0,"performative":{"type":"flow#13","incoming_window":2147483647,"next_outgoing_id":1,"outgoing_window":2147483647,"link_credit":1000}}'
      17164   {"durable":False,"priority":None,"ttl":None,"first-acquirer":None,"delivery-count":0,"id":None,"user-id":None,"address":"JAMQMsgPatterns0b7TestssDbvJpl","subject":None,"reply-to":None,"correlation-id":"corr-id-4","content-type":"string","content-encoding":None,"absolute-expiry-time":None,"creation-time":None,"group-id":None,"group-sequence":None,"reply-to-group-id":None,"properties":None,"content":None}
      17164 ! 2018-06-21T14:09:12.970Z rhea:frames [connection-1] PENDING: '{"channel":0,"type":0,"performative":[0,0,{"type":"Buffer","data":[48]},0,false,false],"payload":{"type":"Buffer","data":[0,83,112,208,0,0,0,9,0,0,0,5,66,64,64,64,67,0,83,114,209,0,0,0,4,0,0,0,0,0,83,115,208,0,0,0,65,0,0,0,13,64,64,161,30,74,65,77,81,77,115,103,80,97,116,116,101,114,110,115,48,98,55,84,101,115,116,115,115,68,98,118,74,112,108,64,64,161,9,99,111,114,114,45,105,100,45,52,163,6,115,116,114,105,110,103,64,64,64,64,64,64,0,83,116,209,0,0,0,4,0,0,0,0,0,83,119,209,0,0,0,4,0,0,0,0]}}'
      17164 ! 2018-06-21T14:09:12.977Z rhea:frames [connection-1] RECV: '{"size":22,"type":0,"channel":0,"performative":{"type":"disposition#15","role":true,"settled":true,"state":[]}}'
      17164 ! 2018-06-21T14:09:12.979Z rhea:frames [connection-1] PENDING: '{"channel":0,"type":0,"performative":[0,false]}'
      17164 ! 2018-06-21T14:09:12.980Z rhea:frames [connection-1] PENDING: '{"channel":0,"type":0,"performative":[]}'
      17164 ! 2018-06-21T14:09:12.982Z rhea:frames [connection-1] RECV: '{"size":15,"type":0,"channel":0,"performative":{"type":"detach#16"}}'
      17164 ! 2018-06-21T14:09:12.985Z rhea:frames [connection-1] RECV: '{"size":12,"type":0,"channel":0,"performative":{"type":"close#18"}}'
      17164 / 0
      17183 + java -jar cli-activemq/target/cli-activemq-1.2.2-SNAPSHOT-LATEST.jar receiver --log-msgs interop --count 1 --address JAMQMsgPatterns0b7TestssDbvJpl
      17183 / 0
      

      At the end of the listing we can see that cli-activemq received nothing.

      Show
      See the test in Description, or you can use QE clis: + means process was started, ! means output to stderr (logging), / means cli existed. 17164 + node bin/sender-client.js --log-lib=TRANSPORT_FRM --log-msgs interop --count 1 --msg-correlation-id corr-id-4 --address JAMQMsgPatterns0b7TestssDbvJpl 17164 ! 2018-06-21T14:09:12.950Z rhea:frames [connection-1] PENDING: '{"channel":0,"type":0,"performative":["a3da0d82-00ca-8e4c-9f77-8451f8ce558d",null,null,null,null,null,null,null,null,[]]}' 17164 ! 2018-06-21T14:09:12.951Z rhea:frames [connection-1] PENDING: '{"channel":0,"type":0,"performative":[null,0,2048,4294967295]}' 17164 ! 2018-06-21T14:09:12.952Z rhea:frames [connection-1] PENDING: '{"channel":0,"type":0,"performative":["645fdd98-aefc-5048-a12a-d9864eece9c1",0,false,null,null,[],["JAMQMsgPatterns0b7TestssDbvJpl",0],null,null,0]}' 17164 ! 2018-06-21T14:09:12.960Z rhea:frames [connection-1] RECV: { protocol_id: 0, major: 1, minor: 0, revision: 0 } 17164 ! 2018-06-21T14:09:12.961Z rhea:frames [connection-1] RECV: '{"size":188,"type":0,"channel":0,"performative":{"type":"open#10","container_id":"amq","max_frame_size":131072,"channel_max":65535,"idle_time_out":30000,"offered_capabilities":["sole-connection-for-container","DELAYED_DELIVERY","SHARED-SUBS","ANONYMOUS-RELAY"],"properties":{"product":"apache-activemq-artemis","version":"2.6.1.amq-720003-redhat-1"}}}' 17164 ! 2018-06-21T14:09:12.963Z rhea:frames [connection-1] RECV: '{"size":34,"type":0,"channel":0,"performative":{"type":"begin#11","next_outgoing_id":1,"incoming_window":2147483647,"outgoing_window":2147483647,"handle_max":65535}}' 17164 ! 2018-06-21T14:09:12.963Z rhea:frames [connection-1] RECV: '{"size":100,"type":0,"channel":0,"performative":{"type":"attach#12","name":"645fdd98-aefc-5048-a12a-d9864eece9c1","role":true,"snd_settle_mode":2,"source":[],"target":["JAMQMsgPatterns0b7TestssDbvJpl"]}}' 17164 ! 2018-06-21T14:09:12.964Z rhea:frames [connection-1] RECV: '{"size":34,"type":0,"channel":0,"performative":{"type":"flow#13","incoming_window":2147483647,"next_outgoing_id":1,"outgoing_window":2147483647,"link_credit":1000}}' 17164 {"durable":False,"priority":None,"ttl":None,"first-acquirer":None,"delivery-count":0,"id":None,"user-id":None,"address":"JAMQMsgPatterns0b7TestssDbvJpl","subject":None,"reply-to":None,"correlation-id":"corr-id-4","content-type":"string","content-encoding":None,"absolute-expiry-time":None,"creation-time":None,"group-id":None,"group-sequence":None,"reply-to-group-id":None,"properties":None,"content":None} 17164 ! 2018-06-21T14:09:12.970Z rhea:frames [connection-1] PENDING: '{"channel":0,"type":0,"performative":[0,0,{"type":"Buffer","data":[48]},0,false,false],"payload":{"type":"Buffer","data":[0,83,112,208,0,0,0,9,0,0,0,5,66,64,64,64,67,0,83,114,209,0,0,0,4,0,0,0,0,0,83,115,208,0,0,0,65,0,0,0,13,64,64,161,30,74,65,77,81,77,115,103,80,97,116,116,101,114,110,115,48,98,55,84,101,115,116,115,115,68,98,118,74,112,108,64,64,161,9,99,111,114,114,45,105,100,45,52,163,6,115,116,114,105,110,103,64,64,64,64,64,64,0,83,116,209,0,0,0,4,0,0,0,0,0,83,119,209,0,0,0,4,0,0,0,0]}}' 17164 ! 2018-06-21T14:09:12.977Z rhea:frames [connection-1] RECV: '{"size":22,"type":0,"channel":0,"performative":{"type":"disposition#15","role":true,"settled":true,"state":[]}}' 17164 ! 2018-06-21T14:09:12.979Z rhea:frames [connection-1] PENDING: '{"channel":0,"type":0,"performative":[0,false]}' 17164 ! 2018-06-21T14:09:12.980Z rhea:frames [connection-1] PENDING: '{"channel":0,"type":0,"performative":[]}' 17164 ! 2018-06-21T14:09:12.982Z rhea:frames [connection-1] RECV: '{"size":15,"type":0,"channel":0,"performative":{"type":"detach#16"}}' 17164 ! 2018-06-21T14:09:12.985Z rhea:frames [connection-1] RECV: '{"size":12,"type":0,"channel":0,"performative":{"type":"close#18"}}' 17164 / 0 17183 + java -jar cli-activemq/target/cli-activemq-1.2.2-SNAPSHOT-LATEST.jar receiver --log-msgs interop --count 1 --address JAMQMsgPatterns0b7TestssDbvJpl 17183 / 0 At the end of the listing we can see that cli-activemq received nothing.

      If I send a message from rhea AMQP client (https://github.com/amqp/rhea) to a queue and then attempting to receive the message using activemq-client, I get the following exception

      2018-06-21 16:12:24,031 WARN  [org.apache.activemq.artemis.core.server] Error during message dispatch: java.lang.NullPointerException
      	at org.apache.activemq.artemis.utils.collections.TypedProperties.getMap(TypedProperties.java:1012) [artemis-commons-2.6.1.amq-720003-redhat-1.jar:2.6.1.amq-720003-redhat-1]
      	at org.apache.activemq.artemis.core.protocol.openwire.OpenWireMessageConverter.toAMQMessageMapType(OpenWireMessageConverter.java:720) [artemis-openwire-protocol-2.6.1.amq-720003-redhat-1.jar:]
      	at org.apache.activemq.artemis.core.protocol.openwire.OpenWireMessageConverter.toAMQMessage(OpenWireMessageConverter.java:535) [artemis-openwire-protocol-2.6.1.amq-720003-redhat-1.jar:]
      	at org.apache.activemq.artemis.core.protocol.openwire.OpenWireMessageConverter.createMessageDispatch(OpenWireMessageConverter.java:492) [artemis-openwire-protocol-2.6.1.amq-720003-redhat-1.jar:]
      	at org.apache.activemq.artemis.core.protocol.openwire.amq.AMQConsumer.handleDeliver(AMQConsumer.java:255) [artemis-openwire-protocol-2.6.1.amq-720003-redhat-1.jar:]
      	at org.apache.activemq.artemis.core.protocol.openwire.amq.AMQSession.sendMessage(AMQSession.java:313) [artemis-openwire-protocol-2.6.1.amq-720003-redhat-1.jar:]
      	at org.apache.activemq.artemis.core.server.impl.ServerConsumerImpl.deliverStandardMessage(ServerConsumerImpl.java:1106) [artemis-server-2.6.1.amq-720003-redhat-1.jar:2.6.1.amq-720003-redhat-1]
      	at org.apache.activemq.artemis.core.server.impl.ServerConsumerImpl.proceedDeliver(ServerConsumerImpl.java:464) [artemis-server-2.6.1.amq-720003-redhat-1.jar:2.6.1.amq-720003-redhat-1]
      	at org.apache.activemq.artemis.core.server.impl.QueueImpl.proceedDeliver(QueueImpl.java:2938) [artemis-server-2.6.1.amq-720003-redhat-1.jar:2.6.1.amq-720003-redhat-1]
      	at org.apache.activemq.artemis.core.server.impl.QueueImpl.deliver(QueueImpl.java:2406) [artemis-server-2.6.1.amq-720003-redhat-1.jar:2.6.1.amq-720003-redhat-1]
      	at org.apache.activemq.artemis.core.server.impl.QueueImpl.access$2000(QueueImpl.java:107) [artemis-server-2.6.1.amq-720003-redhat-1.jar:2.6.1.amq-720003-redhat-1]
      	at org.apache.activemq.artemis.core.server.impl.QueueImpl$DeliverRunner.run(QueueImpl.java:3211) [artemis-server-2.6.1.amq-720003-redhat-1.jar:2.6.1.amq-720003-redhat-1]
      	at org.apache.activemq.artemis.utils.actors.OrderedExecutor.doTask(OrderedExecutor.java:42) [artemis-commons-2.6.1.amq-720003-redhat-1.jar:2.6.1.amq-720003-redhat-1]
      	at org.apache.activemq.artemis.utils.actors.OrderedExecutor.doTask(OrderedExecutor.java:31) [artemis-commons-2.6.1.amq-720003-redhat-1.jar:2.6.1.amq-720003-redhat-1]
      	at org.apache.activemq.artemis.utils.actors.ProcessorBase.executePendingTasks(ProcessorBase.java:66) [artemis-commons-2.6.1.amq-720003-redhat-1.jar:2.6.1.amq-720003-redhat-1]
      	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [rt.jar:1.8.0_152-release]
      	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [rt.jar:1.8.0_152-release]
      	at org.apache.activemq.artemis.utils.ActiveMQThreadFactory$1.run(ActiveMQThreadFactory.java:118) [artemis-commons-2.6.1.amq-720003-redhat-1.jar:2.6.1.amq-720003-redhat-1]
      

      This differs from ENTMQBR-1694 in that I'd expect the message gets converted successfully. Similar test (JAMQMsgPatterns/test_direct_transient_empty_message) is passing for JMS Core -> OpenWire and for proton-python -> OpenWire. I do not know what is special about Rhea that it's message is not converted.

      /**
       * Licensed to the Apache Software Foundation (ASF) under one or more
       * contributor license agreements. See the NOTICE file distributed with
       * this work for additional information regarding copyright ownership.
       * The ASF licenses this file to You under the Apache License, Version 2.0
       * (the "License"); you may not use this file except in compliance with
       * the License. You may obtain a copy of the License at
       * <p>
       * http://www.apache.org/licenses/LICENSE-2.0
       * <p>
       * Unless required by applicable law or agreed to in writing, software
       * distributed under the License is distributed on an "AS IS" BASIS,
       * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
       * See the License for the specific language governing permissions and
       * limitations under the License.
       */
      package org.apache.activemq.artemis.tests.integration.crossprotocol;
      
      import org.apache.activemq.ActiveMQConnectionFactory;
      import org.apache.activemq.ActiveMQXAConnectionFactory;
      import org.apache.activemq.artemis.api.core.RoutingType;
      import org.apache.activemq.artemis.api.core.SimpleString;
      import org.apache.activemq.artemis.core.config.Configuration;
      import org.apache.activemq.artemis.core.server.ActiveMQServer;
      import org.apache.activemq.artemis.core.settings.impl.AddressSettings;
      import org.apache.activemq.artemis.tests.util.ActiveMQTestBase;
      import org.apache.qpid.jms.JmsConnectionFactory;
      import org.jetbrains.annotations.NotNull;
      import org.junit.After;
      import org.junit.Before;
      import org.junit.Test;
      
      import javax.jms.*;
      import java.io.IOException;
      import java.io.OutputStream;
      import java.net.Socket;
      import java.nio.ByteBuffer;
      import java.util.Arrays;
      import java.util.concurrent.TimeUnit;
      
      public class AMQPRheaToOpenWireTestCase extends ActiveMQTestBase {
      
          public static final String OWHOST = "localhost";
          public static final int OWPORT = 61616;
          protected static final String urlString = "tcp://" + OWHOST + ":" + OWPORT + "?wireFormat.cacheEnabled=true";
      
          private ActiveMQServer server;
          protected ActiveMQConnectionFactory factory = new ActiveMQConnectionFactory(urlString);
          protected ActiveMQXAConnectionFactory xaFactory = new ActiveMQXAConnectionFactory(urlString);
          private JmsConnectionFactory qpidfactory = new JmsConnectionFactory("amqp://localhost:61616");
          protected String queueName = "JAMQMsgPatterns0b7TestssDbvJpl";
          private SimpleString coreQueue;
      
          @Override
          @Before
          public void setUp() throws Exception {
              super.setUp();
              server = createServer(true, true);
              server.start();
              server.waitForActivation(10, TimeUnit.SECONDS);
      
              Configuration serverConfig = server.getConfiguration();
              serverConfig.getAddressesSettings().put("#", new AddressSettings().setAutoCreateQueues(false).setAutoCreateAddresses(false).setDeadLetterAddress(new SimpleString("ActiveMQ.DLQ")));
              serverConfig.setSecurityEnabled(false);
              coreQueue = new SimpleString(queueName);
              server.createQueue(coreQueue, RoutingType.ANYCAST, coreQueue, null, false, false);
          }
      
          @Override
          @After
          public void tearDown() throws Exception {
              server.stop();
          }
      
          @Test
          public void testSendRhealikeMessage() throws Exception {
              sendRhealikeMessageToQueue();
              try (Connection owc = factory.createConnection();
                   Session ows = owc.createSession(false, Session.CLIENT_ACKNOWLEDGE);
                   MessageConsumer owr = ows.createConsumer(ows.createQueue(queueName))) {
                  owc.start();
                  if (owr.receive(1000) == null) {
                      System.out.println("failed to receive a message using openwire, trying amqp now");
      
                      owc.close(); // free the message for next consumer
      
                      try (Connection ac = qpidfactory.createConnection();
                           Session as = ac.createSession(false, Session.CLIENT_ACKNOWLEDGE);
                           MessageConsumer ar = as.createConsumer(as.createQueue(queueName))) {
                          ac.start();
                          System.out.println("qpid-jms says " + ar.receive(1000));
                      }
      
                      fail("OpenWire did not receive the message");
                  }
              }
          }
      
          /**
           * Queue name is JAMQMsgPatterns0b7TestssDbvJpl, that is hardcoded in the protocol payload
           */
          private void sendRhealikeMessageToQueue() throws Exception {
              int peer0_2[] = {
                      0x41, 0x4d, 0x51, 0x50, 0x00, 0x01, 0x00, 0x00 };
              int peer0_3[] = {
                      0x00, 0x00, 0x00, 0x4b, 0x02, 0x00, 0x00, 0x00,
                      0x00, 0x53, 0x10, 0xd0, 0x00, 0x00, 0x00, 0x3b,
                      0x00, 0x00, 0x00, 0x0a, 0xa1, 0x24, 0x61, 0x33,
                      0x64, 0x61, 0x30, 0x64, 0x38, 0x32, 0x2d, 0x30,
                      0x30, 0x63, 0x61, 0x2d, 0x38, 0x65, 0x34, 0x63,
                      0x2d, 0x39, 0x66, 0x37, 0x37, 0x2d, 0x38, 0x34,
                      0x35, 0x31, 0x66, 0x38, 0x63, 0x65, 0x35, 0x35,
                      0x38, 0x64, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40,
                      0x40, 0x40, 0xd1, 0x00, 0x00, 0x00, 0x04, 0x00,
                      0x00, 0x00, 0x00 };
              int peer0_4[] = {
                      0x00, 0x00, 0x00, 0x20, 0x02, 0x00, 0x00, 0x00,
                      0x00, 0x53, 0x11, 0xd0, 0x00, 0x00, 0x00, 0x10,
                      0x00, 0x00, 0x00, 0x04, 0x40, 0x43, 0x70, 0x00,
                      0x00, 0x08, 0x00, 0x70, 0xff, 0xff, 0xff, 0xff };
              int peer0_5[] = {
                      0x00, 0x00, 0x00, 0x72, 0x02, 0x00, 0x00, 0x00,
                      0x00, 0x53, 0x12, 0xd0, 0x00, 0x00, 0x00, 0x62,
                      0x00, 0x00, 0x00, 0x0a, 0xa1, 0x24, 0x36, 0x34,
                      0x35, 0x66, 0x64, 0x64, 0x39, 0x38, 0x2d, 0x61,
                      0x65, 0x66, 0x63, 0x2d, 0x35, 0x30, 0x34, 0x38,
                      0x2d, 0x61, 0x31, 0x32, 0x61, 0x2d, 0x64, 0x39,
                      0x38, 0x36, 0x34, 0x65, 0x65, 0x63, 0x65, 0x39,
                      0x63, 0x31, 0x43, 0x42, 0x40, 0x40, 0x00, 0x53,
                      0x28, 0x45, 0x00, 0x53, 0x29, 0xd0, 0x00, 0x00,
                      0x00, 0x25, 0x00, 0x00, 0x00, 0x02, 0xa1, 0x1e,
                      0x4a, 0x41, 0x4d, 0x51, 0x4d, 0x73, 0x67, 0x50,
                      0x61, 0x74, 0x74, 0x65, 0x72, 0x6e, 0x73, 0x30,
                      0x62, 0x37, 0x54, 0x65, 0x73, 0x74, 0x73, 0x73,
                      0x44, 0x62, 0x76, 0x4a, 0x70, 0x6c, 0x43, 0x40,
                      0x40, 0x43 };
              int peer0_6[] = {
                      0x00, 0x00, 0x00, 0x9a, 0x02, 0x00, 0x00, 0x00,
                      0x00, 0x53, 0x14, 0xd0, 0x00, 0x00, 0x00, 0x0c,
                      0x00, 0x00, 0x00, 0x06, 0x43, 0x43, 0xa0, 0x01,
                      0x30, 0x43, 0x42, 0x42, 0x00, 0x53, 0x70, 0xd0,
                      0x00, 0x00, 0x00, 0x09, 0x00, 0x00, 0x00, 0x05,
                      0x42, 0x40, 0x40, 0x40, 0x43, 0x00, 0x53, 0x72,
                      0xd1, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00,
                      0x00, 0x00, 0x53, 0x73, 0xd0, 0x00, 0x00, 0x00,
                      0x41, 0x00, 0x00, 0x00, 0x0d, 0x40, 0x40, 0xa1,
                      0x1e, 0x4a, 0x41, 0x4d, 0x51, 0x4d, 0x73, 0x67,
                      0x50, 0x61, 0x74, 0x74, 0x65, 0x72, 0x6e, 0x73,
                      0x30, 0x62, 0x37, 0x54, 0x65, 0x73, 0x74, 0x73,
                      0x73, 0x44, 0x62, 0x76, 0x4a, 0x70, 0x6c, 0x40,
                      0x40, 0xa1, 0x09, 0x63, 0x6f, 0x72, 0x72, 0x2d,
                      0x69, 0x64, 0x2d, 0x34, 0xa3, 0x06, 0x73, 0x74,
                      0x72, 0x69, 0x6e, 0x67, 0x40, 0x40, 0x40, 0x40,
                      0x40, 0x40, 0x00, 0x53, 0x74, 0xd1, 0x00, 0x00,
                      0x00, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x53,
                      0x77, 0xd1, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00,
                      0x00, 0x00 };
              int peer0_7[] = {
                      0x00, 0x00, 0x00, 0x16, 0x02, 0x00, 0x00, 0x00,
                      0x00, 0x53, 0x16, 0xd0, 0x00, 0x00, 0x00, 0x06,
                      0x00, 0x00, 0x00, 0x02, 0x43, 0x42 };
              int peer0_8[] = {
                      0x00, 0x00, 0x00, 0x0c, 0x02, 0x00, 0x00, 0x00,
                      0x00, 0x53, 0x18, 0x45 };
      
              int messages[][] = {peer0_2, peer0_3, peer0_4, peer0_5, peer0_6, peer0_7, peer0_8};
      
              Socket s = new Socket(OWHOST, OWPORT);
              OutputStream stream = s.getOutputStream();
              for (int buffer[] : messages) {
                  convertToByteArray(buffer);
                  stream.write(convertToByteArray(buffer));
                  stream.flush();
                  Thread.sleep(500);
              }
              s.close();
          }
      
          @NotNull
          private byte[] convertToByteArray(int[] buffer) {
              ByteBuffer b = ByteBuffer.allocate(buffer.length);
              for (int value : buffer) {
                  b.put((byte) value);
              }
              return b.array();
          }
      }
      

              rh-ee-ataylor Andy Taylor
              jdanek@redhat.com Jiri Daněk
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                Created:
                Updated:
                Resolved: