--- /dev/null	2019-04-05 16:11:36.000000000 +0530
+++ new/test/jdk/com/sun/tools/jextract/test8222025/ValistUseTest.java	2019-04-05 16:11:34.000000000 +0530
@@ -0,0 +1,53 @@
+/*
+ * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+import java.nio.file.Path;
+import java.io.IOException;
+import org.testng.annotations.Test;
+
+import static org.testng.Assert.assertTrue;
+
+/*
+ * @test
+ * @bug 8222025
+ * @summary jextract generates reference to underfined type for va_list
+ * @library ..
+ * @run testng ValistUseTest
+ */
+public class ValistUseTest extends JextractToolRunner {
+    @Test
+    public void test() throws IOException {
+        Path vaListUseJar = getOutputFilePath("test8222025.jar");
+        deleteFile(vaListUseJar);
+        Path va_list_use_H = getInputFilePath("va_list_use.h");
+        run("-o", vaListUseJar.toString(),
+            va_list_use_H.toString()).checkSuccess();
+        try {
+            Loader loader = classLoader(vaListUseJar);
+            Class<?> vaListTag = loader.loadClass("clang_support.builtin$$__va_list_tag");
+            assertTrue(vaListTag != null);
+        } finally {
+            deleteFile(vaListUseJar);
+        }
+     }
+}