convert undertow groovy test to java

instrumentation/undertow-1.4/javaagent/build.gradle.kts

@@ -24,3 +24,11 @@ dependencies {
 tasks.withType<Test>().configureEach {
   jvmArgs("-Dotel.instrumentation.common.experimental.controller-telemetry.enabled=true")
 }
+
+// since 2.3.x, undertow is compiled by JDK 11
+val latestDepTest = findProperty("testLatestDeps") as Boolean
+if (latestDepTest) {
+  otelJava {
+    minJavaVersionSupported.set(JavaVersion.VERSION_11)
+  }
+}

instrumentation/undertow-1.4/javaagent/src/test/java/io/opentelemetry/javaagent/instrumentation/undertow/UndertowHttp2ServerTest.java

@@ -0,0 +1,22 @@
+/*
+ * Copyright The OpenTelemetry Authors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package io.opentelemetry.javaagent.instrumentation.undertow;
+
+import io.undertow.Undertow;
+import io.undertow.UndertowOptions;
+
+class UndertowHttp2ServerTest extends UndertowServerTest {
+
+  @Override
+  public void configureUndertow(Undertow.Builder builder) {
+    builder.setServerOption(UndertowOptions.ENABLE_HTTP2, true);
+  }
+
+  @Override
+  public boolean useHttp2() {
+    return true;
+  }
+}