--- /dev/null	Thu May 10 11:22:25 2012
+++ new/jdk/src/windows/native/org/openjdk/jigsaw/PersistentTreeMap_md.c	Thu May 10 11:22:25 2012
@@ -0,0 +1,68 @@
+/*
+ * Copyright (c) 2012, 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.
+ */
+
+#include <windows.h>
+#include "jni_util.h"
+#include "PersistentTreeMap.h"
+
+#ifndef BDB_LIB_NAME
+#define BDB_LIB_NAME "db-rds.dll";
+#endif
+
+void ThrowException(JNIEnv *env)
+{
+    char szMessage[1024];
+    szMessage[0] = '\0';
+    FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM, NULL, GetLastError(),
+                  MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
+                  szMessage, 1024, NULL);
+    JNU_ThrowInternalError(env, szMessage);
+}
+
+
+// Loads the appripriate BDB library. There will be a
+// pending exception if this method fails.
+void loadLibrary(JNIEnv* env)
+{
+    HMODULE handle = NULL;
+    const char* libdb = BDB_LIB_NAME;
+
+    if ((handle = LoadLibrary(libdb)) == NULL) {
+        ThrowException(env);
+        return;
+    }
+
+    if ((libdb_db_create = (db_create_func*)
+            GetProcAddress(handle, "db_create")) == NULL) {
+        ThrowException(env);
+        return;
+    }
+
+    if ((libdb_db_strerror = (db_strerror_func*)
+            GetProcAddress(handle, "db_strerror")) == NULL) {
+        ThrowException(env);
+    }
+}
+