Workaround Groovy conflicts in Debug examples as daily build is failing

examples/debug/src/test/resources-filtered/project/classic/src/test/java/io/quarkus/qe/debug/HelloIT.java

@@ -1,20 +1,30 @@
 package io.quarkus.qe.debug;
 
+import io.quarkus.test.bootstrap.RestService;
 import io.quarkus.test.scenarios.QuarkusScenario;
-import io.restassured.RestAssured;
-import org.hamcrest.Matchers;
+import io.quarkus.test.services.QuarkusApplication;
+import io.vertx.mutiny.ext.web.client.HttpResponse;
+import io.vertx.mutiny.ext.web.client.predicate.ResponsePredicate;
 import org.junit.jupiter.api.Test;
 
+import java.net.HttpURLConnection;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
 @QuarkusScenario
 public class HelloIT {
 
+    @QuarkusApplication
+    static final RestService app = new RestService(false);
+
     @Test
     public void test() {
-        RestAssured
-                .get("/hello")
-                .then()
-                .statusCode(200)
-                .body(Matchers.is("hello"));
+        String response = app.mutiny().get("/hello")
+                .expect(ResponsePredicate.status(HttpURLConnection.HTTP_OK))
+                .send()
+                .map(HttpResponse::bodyAsString)
+                .await().indefinitely();
+        assertEquals("hello", response);
     }
 
 }

quarkus-test-core/src/main/java/io/quarkus/test/bootstrap/RestService.java

@@ -23,8 +23,23 @@ public class RestService extends BaseService<RestService> {
     private static final int BUFFER_SIZE = 1024;
     private static final String BASE_PATH = "/";
 
+    private final boolean setupRestAssured;
     private WebClient webClient;
 
+    public RestService() {
+        this(true);
+    }
+
+    /**
+     * @param setupRestAssured whether RestAssured base URI, path and port should be configured;
+     *        usually you don't mind as setting up RestAssured doesn't hurt you, but it can be useful
+     *        when you want to avoid Groovy which RestAssured relies on (like when this framework
+     *        is build with a different Quarkus version than it is tested in Maven invoker tests).
+     */
+    public RestService(boolean setupRestAssured) {
+        this.setupRestAssured = setupRestAssured;
+    }
+
     public RequestSpecification given() {
         var host = getURI(Protocol.HTTP);
         return RestAssured.given()
@@ -154,9 +169,11 @@ public WebClient mutinyHttps(boolean verifyHost, String clientCertificateCn, boo
     public void start() {
         super.start();
         var host = getURI(Protocol.HTTP);
-        RestAssured.baseURI = host.getRestAssuredStyleUri();
-        RestAssured.basePath = BASE_PATH;
-        RestAssured.port = host.getPort();
+        if (setupRestAssured) {
+            RestAssured.baseURI = host.getRestAssuredStyleUri();
+            RestAssured.basePath = BASE_PATH;
+            RestAssured.port = host.getPort();
+        }
     }
 
     private static byte[] getFileContent(String path) {

quarkus-test-core/src/main/java/io/quarkus/test/debug/SureFireCommunicationHelper.java

@@ -6,8 +6,6 @@
 import java.nio.file.Path;
 import java.util.stream.Collectors;
 
-import org.apache.commons.io.FileUtils;
-
 public final class SureFireCommunicationHelper {
 
     private static final String EXIT_PREFIX = "quarkus-fw-debug-mode-exit-";
@@ -25,12 +23,7 @@ private SureFireCommunicationHelper(boolean performLookup) {
     }
 
     void closeCommunication() {
-        try {
-            // recursively delete directory with all its content
-            FileUtils.deleteDirectory(exitTmpDir.toFile());
-        } catch (IOException e) {
-            throw new RuntimeException("Failed to delete exit directory", e);
-        }
+        deleteDirectory(exitTmpDir);
     }
 
     void sendExitSignal() {
@@ -95,14 +88,7 @@ private static void deletePreviousExitTmpDirs() {
             tmpFiles
                     .filter(Files::isDirectory)
                     .filter(SureFireCommunicationHelper::isExitTmpDir)
-                    .forEach(path -> {
-                        try {
-                            // recursively delete directory with all its content
-                            FileUtils.deleteDirectory(path.toFile());
-                        } catch (IOException e) {
-                            throw new IllegalStateException("Failed to delete previous exit directory", e);
-                        }
-                    });
+                    .forEach(SureFireCommunicationHelper::deleteDirectory);
         } catch (IOException e) {
             throw new IllegalStateException("Failed to delete previous exit directories", e);
         }
@@ -111,4 +97,31 @@ private static void deletePreviousExitTmpDirs() {
     private static Path tmpDirPath() {
         return Path.of(System.getProperty("java.io.tmpdir"));
     }
+
+    /**
+     * Recursively deletes directory with all its content.
+     */
+    private static void deleteDirectory(Path directoryPath) {
+        if (Files.exists(directoryPath)) {
+            var dirFiles = directoryPath.toFile().listFiles();
+            if (dirFiles != null) {
+                for (File dirFile : dirFiles) {
+                    if (dirFile.isDirectory()) {
+                        deleteDirectory(dirFile.toPath());
+                    } else {
+                        deletePath(dirFile.toPath());
+                    }
+                }
+            }
+            deletePath(directoryPath);
+        }
+    }
+
+    private static void deletePath(Path path) {
+        try {
+            Files.delete(path);
+        } catch (IOException e) {
+            throw new IllegalStateException("Failed to delete: " + path, e);
+        }
+    }
 }