--- /dev/null	2018-10-22 10:45:36.000000000 -0400
+++ new/src/jdk.packager/share/native/library/common/Lock.h	2018-10-22 10:45:34.245479400 -0400
@@ -0,0 +1,57 @@
+/*
+ * Copyright (c) 2014, 2018, 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.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * 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.
+ */
+
+#ifndef LOCK_H
+#define LOCK_H
+
+#include "Platform.h"
+
+#ifdef POSIX
+#include <pthread.h>
+#endif //POSIX
+
+
+class Lock {
+private:
+#ifdef WINDOWS
+    CRITICAL_SECTION FCriticalSection;
+#endif //WINDOWS
+#ifdef POSIX
+    pthread_mutex_t FMutex;
+#endif //POSIX
+
+    void Initialize();
+
+public:
+    Lock(void);
+    Lock(bool Value);
+    ~Lock(void);
+
+    void Enter();
+    void Leave();
+    bool TryEnter();
+};
+
+#endif // LOCK_H