Revert to using a fixed host/address for the connect instance due to multiple port allocation issues on GH actions

Author: orpiske

tests/itests-common/src/test/java/org/apache/camel/kafkaconnector/common/services/kafka/EmbeddedKafkaService.java

@@ -23,7 +23,6 @@
 import java.util.concurrent.TimeUnit;
 
 import org.apache.camel.kafkaconnector.common.PluginPathHelper;
-import org.apache.camel.kafkaconnector.common.utils.NetworkUtils;
 import org.apache.camel.test.infra.kafka.services.KafkaService;
 import org.apache.kafka.connect.runtime.WorkerConfig;
 import org.apache.kafka.connect.util.clusters.EmbeddedConnectCluster;
@@ -52,7 +51,7 @@ private void buildCluster() {
         Map<String, String> workerProps = new HashMap<>();
         workerProps.put(WorkerConfig.OFFSET_COMMIT_INTERVAL_MS_CONFIG, String.valueOf(OFFSET_COMMIT_INTERVAL_MS));
 
-        String address = NetworkUtils.getAddress("http");
+        String address = "http://localhost:9999";
         LOG.info("Using the following address for  the listener configuration: {}", address);
         workerProps.put(WorkerConfig.LISTENERS_CONFIG, address);
 

tests/itests-common/src/test/java/org/apache/camel/kafkaconnector/common/utils/NetworkUtils.java

@@ -19,7 +19,6 @@
 import java.io.IOException;
 import java.net.ConnectException;
 import java.net.DatagramSocket;
-import java.net.InetAddress;
 import java.net.InetSocketAddress;
 import java.net.ServerSocket;
 import java.net.Socket;
@@ -33,7 +32,6 @@ public final class NetworkUtils {
     public static final int  DEFAULT_ENDING_PORT = 65535;
     public static final int  DEFAULT_STARTING_PORT = 49152;
     public static int freeStartingPort = DEFAULT_STARTING_PORT;
-    private static String hostname;
     private static final Logger LOG = LoggerFactory.getLogger(NetworkUtils.class);
 
     private NetworkUtils() {
@@ -120,18 +118,7 @@ public enum Protocol {
     }
 
     public static String getHostname() {
-        if (hostname == null) {
-            try {
-                hostname = InetAddress.getLocalHost().getCanonicalHostName();
-            } catch (UnknownHostException e) {
-                LOG.warn("Will default to 'localhost' because the code could not get the local hostname: {}",
-                        e.getMessage(), e);
-
-                hostname = "localhost";
-            }
-        }
-
-        return hostname;
+        return "localhost";
     }
 
     public static String getAddress(String protocol) {