--- /dev/null	2017-03-29 12:42:18.512049647 +0200
+++ new/test/gc/stress/gclocker/libTestGCLocker.c	2017-04-18 11:52:39.921968897 +0200
@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) 2017, 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.
+ */
+
+#include <jni.h>
+
+JNIEXPORT void JNICALL
+Java_GCLockerStresser_fillWithRandomValues(JNIEnv* env, jclass clz, jbyteArray arr) {
+  jsize size = (*env)->GetArrayLength(env, arr);
+  jbyte* p = (*env)->GetPrimitiveArrayCritical(env, arr, NULL);
+  jsize i;
+  for (i = 0; i < size; i++) {
+    p[i] = i % 128;
+  }
+  (*env)->ReleasePrimitiveArrayCritical(env, arr, p, 0);
+}