Merge pull request #18310 from sIvanovKonstantyn/master

BAEL-8891 - Use random port in integration test

Author: davidmartinezbarua

libraries-5/src/test/java/com/baeldung/activej/ActiveJIntegrationTest.java

@@ -12,7 +12,10 @@
 import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.Test;
 
+import java.io.IOException;
 import java.net.InetAddress;
+import java.net.InetSocketAddress;
+import java.net.ServerSocket;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
 
@@ -36,8 +39,8 @@ static void setUp() throws Exception {
           .build();
 
         server = HttpServer.builder(eventloop, servlet)
-          .withListenPort(8080)
-          .build();
+                .withListenPort(randomPort())
+                .build();
 
         server.listen();
 
@@ -48,6 +51,14 @@ static void setUp() throws Exception {
         client = HttpClient.builder(eventloop, dnsClient).build();
     }
 
+    private static int randomPort() {
+        try (ServerSocket socket = new ServerSocket(0)) {
+            return socket.getLocalPort();
+        } catch (IOException e) {
+            throw new RuntimeException("Failed to find a free port", e);
+        }
+    }
+
     @AfterAll
     static void tearDown() {
         if (server != null) {