--- /dev/null	2018-12-03 11:58:50.256341286 +0100
+++ new/test/hotspot/jtreg/gc/CriticalNativeArgs.java	2018-12-03 17:46:15.074924063 +0100
@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) 2018, Red Hat, Inc. and/or its affiliates.
+ *
+ * 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.
+ *
+ */
+
+
+/*
+ * @test CriticalNativeStressEpsilon
+ * @key gc
+ * @bug 8199868
+ * @requires (os.arch =="x86_64" | os.arch == "amd64") & vm.gc.Epsilon & !vm.graal.enabled
+ * @summary test argument unpacking nmethod wrapper of critical native method
+ * @run main/othervm/native -XX:+UnlockExperimentalVMOptions -XX:+UseEpsilonGC -Xcomp -Xmx256M -XX:+CriticalJNINatives CriticalNativeArgs
+ */
+
+/*
+ * @test CriticalNativeStressShenandoah
+ * @key gc
+ * @bug 8199868
+ * @requires (os.arch =="x86_64" | os.arch == "amd64") & vm.gc.Shenandoah & !vm.graal.enabled
+ * @summary test argument unpacking nmethod wrapper of critical native method
+ * @run main/othervm/native -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=passive    -XX:+ShenandoahDegeneratedGC -Xcomp -Xmx512M -XX:+CriticalJNINatives CriticalNativeArgs
+ * @run main/othervm/native -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=passive    -XX:-ShenandoahDegeneratedGC -Xcomp -Xmx512M -XX:+CriticalJNINatives CriticalNativeArgs
+ *
+ * @run main/othervm/native -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=aggressive -Xcomp -Xmx512M -XX:+CriticalJNINatives CriticalNativeArgs
+ *
+ * @run main/othervm/native -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC                                                                        -Xcomp -Xmx256M -XX:+CriticalJNINatives CriticalNativeArgs
+ * @run main/othervm/native -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -XX:+UnlockExperimentalVMOptions -XX:ShenandoahGCHeuristics=traversal  -Xcomp -Xmx512M -XX:+CriticalJNINatives CriticalNativeArgs
+ */
+public class CriticalNativeArgs {
+    static {
+        System.loadLibrary("CriticalNative");
+    }
+
+    static native boolean isNull(int[] a);
+
+    public static void main(String[] args) {
+        int[] arr = new int[2];
+
+        if (isNull(arr)) {
+            throw new RuntimeException("Should not be null");
+        }
+
+        if (!isNull(null)) {
+            throw new RuntimeException("Should be null");
+        }
+    }
+}