Add test coverage for 43373 using same ports for http and https

http/vertx/src/test/java/io/quarkus/ts/vertx/PortConflictIT.java

@@ -0,0 +1,34 @@
+package io.quarkus.ts.vertx;
+
+import static io.quarkus.test.services.Certificate.Format.PEM;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+import org.junit.jupiter.api.Test;
+
+import io.quarkus.test.bootstrap.RestService;
+import io.quarkus.test.scenarios.QuarkusScenario;
+import io.quarkus.test.scenarios.annotations.DisabledOnQuarkusVersion;
+import io.quarkus.test.services.Certificate;
+import io.quarkus.test.services.QuarkusApplication;
+
+@QuarkusScenario
+@DisabledOnQuarkusVersion(version = "3\\.(8|9|10|11|12|13|14)\\..*|3\\.15\\.(0|1)(\\..*)?", reason = "Disabled on Quarkus versions before 3.15.2 due to known port conflict issue https://github.com/quarkusio/quarkus/issues/43373")
+public class PortConflictIT {
+
+    static final int COMMON_PORT_HTTP_HTTPS = 50000;
+    @QuarkusApplication(ssl = true, certificates = @Certificate(format = PEM, configureHttpServer = true, configureKeystore = true, configureTruststore = true))
+    static RestService app = new RestService()
+            .setAutoStart(false)
+            .withProperty("quarkus.http.port", String.valueOf(COMMON_PORT_HTTP_HTTPS))
+            .withProperty("quarkus.http.ssl-port", String.valueOf(COMMON_PORT_HTTP_HTTPS));
+
+    @Test
+    void verifyAppBehaviourUsingSamePorts() {
+        assertThrows(AssertionError.class, () -> app.start(),
+                "Should fail because Both http and https servers started on port 50000");
+        String logs = app.getLogs().toString();
+        assertTrue(logs.contains("Both http and https servers started on port 50000"));
+    }
+
+}