JAVA-5484: New Java Http Client Timeout (#12223)

Co-authored-by: Harpal Singh <harpal.singh@kaleyra.com>

core-java-modules/core-java-networking-3/src/main/java/com/baeldung/http/JavaHttpClientTimeout.java

@@ -0,0 +1,12 @@
+package com.baeldung.http;
+
+import java.net.http.HttpClient;
+import java.time.Duration;
+
+public class JavaHttpClientTimeout {
+    static HttpClient getHttpClientWithTimeout(int seconds) {
+        return HttpClient.newBuilder()
+                .connectTimeout(Duration.ofSeconds(seconds))
+                .build();
+    }
+}

core-java-modules/core-java-networking-3/src/test/java/com/baeldung/http/JavaHttpClientTimeoutIntegrationTest.java

@@ -0,0 +1,54 @@
+package com.baeldung.http;
+
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+import java.net.URI;
+import java.net.http.HttpClient;
+import java.net.http.HttpConnectTimeoutException;
+import java.net.http.HttpRequest;
+import java.net.http.HttpResponse;
+import java.time.Duration;
+import java.util.concurrent.CompletableFuture;
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.TimeoutException;
+
+import static com.baeldung.http.JavaHttpClientTimeout.getHttpClientWithTimeout;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+class JavaHttpClientTimeoutIntegrationTest {
+
+    private HttpClient httpClient;
+    private HttpRequest httpRequest;
+
+    @BeforeEach
+    public void setUp() {
+        httpClient = getHttpClientWithTimeout(3);
+        httpClient.connectTimeout().map(Duration::toSeconds)
+                .ifPresent(sec -> System.out.println("Timeout in seconds: " + sec));
+
+        httpRequest = HttpRequest.newBuilder().uri(URI.create("http://10.255.255.1")).GET().build();
+    }
+
+    @Test
+    void shouldThrowExceptionWhenMakingSyncCall() {
+        HttpConnectTimeoutException thrown = assertThrows(
+                HttpConnectTimeoutException.class,
+                () -> httpClient.send(httpRequest, HttpResponse.BodyHandlers.ofString()),
+                "Expected doThing() to throw, but it didn't"
+        );
+        assertTrue(thrown.getMessage().contains("timed out"));
+    }
+
+    @Test
+    void shouldThrowExceptionWhenMakingASyncCall() throws ExecutionException, InterruptedException, TimeoutException {
+        CompletableFuture<String> completableFuture =
+                httpClient.sendAsync(httpRequest, HttpResponse.BodyHandlers.ofString())
+                .thenApply(HttpResponse::body)
+                .exceptionally(Throwable::getMessage);
+        String response = completableFuture.get(5, TimeUnit.SECONDS);
+        assertTrue(response.contains("timed out"));
+    }
+}