diff --git a/make/java/java/FILES_java.gmk b/make/java/java/FILES_java.gmk
index 7a6d93a8f37e75077394f4226e2a999d27f1a1df..01529b4f9b184684f61306d25b27236ca7a0e6ae 100644
--- a/make/java/java/FILES_java.gmk
+++ b/make/java/java/FILES_java.gmk
@@ -51,6 +51,7 @@ JAVA_JAVA_java = \
     java/lang/SuppressWarnings.java \
     java/lang/AbstractStringBuilder.java \
     java/lang/ClassLoader.java \
+    java/lang/ClassLoaderHelper.java \
     java/lang/AssertionStatusDirectives.java \
     java/lang/Enum.java \
     java/lang/StrictMath.java \
diff --git a/src/macosx/classes/java/lang/ClassLoaderHelper.java b/src/macosx/classes/java/lang/ClassLoaderHelper.java
new file mode 100644
index 0000000000000000000000000000000000000000..22f500f52afb86abfc51092a0d733bfe2aaf0c8c
--- /dev/null
+++ b/src/macosx/classes/java/lang/ClassLoaderHelper.java
@@ -0,0 +1,47 @@
+/*
+ * 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.
+ */
+package java.lang;
+
+import java.io.File;
+
+class ClassLoaderHelper {
+
+    private ClassLoaderHelper() {}
+
+    /**
+     * Returns an alternate path name for the given file
+     * such that if the original pathname did not exist, then the
+     * file may be located at the alternate location.
+     * For mac, this replaces the final .dylib suffix with .jnilib
+     */
+    static File mapAlternativeName(File lib) {
+        String name = lib.toString();
+        int index = name.lastIndexOf('.');
+        if (index < 0) {
+            return null;
+        }
+        return new File(name.substring(0, index) + ".jnilib");
+    }
+}
diff --git a/src/share/classes/java/lang/ClassLoader.java b/src/share/classes/java/lang/ClassLoader.java
index 3dc1a1076b5884dbb57fbebcbb9a4875909945da..8f73b05f2d2ee548e7eef298e8a6c2751cb8a50c 100644
--- a/src/share/classes/java/lang/ClassLoader.java
+++ b/src/share/classes/java/lang/ClassLoader.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1994, 2011, Oracle and/or its affiliates. All rights reserved.
+ * 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
@@ -1847,6 +1847,10 @@ public abstract class ClassLoader {
             if (loadLibrary0(fromClass, libfile)) {
                 return;
             }
+            libfile = ClassLoaderHelper.mapAlternativeName(libfile);
+            if (libfile != null && loadLibrary0(fromClass, libfile)) {
+                return;
+            }
         }
         if (loader != null) {
             for (int i = 0 ; i < usr_paths.length ; i++) {
@@ -1855,6 +1859,10 @@ public abstract class ClassLoader {
                 if (loadLibrary0(fromClass, libfile)) {
                     return;
                 }
+                libfile = ClassLoaderHelper.mapAlternativeName(libfile);
+                if (libfile != null && loadLibrary0(fromClass, libfile)) {
+                    return;
+                }
             }
         }
         // Oops, it failed
diff --git a/src/solaris/classes/java/lang/ClassLoaderHelper.java b/src/solaris/classes/java/lang/ClassLoaderHelper.java
new file mode 100644
index 0000000000000000000000000000000000000000..f9baf8ac6c7f8fb31e62a01eae4fb1cf358f60df
--- /dev/null
+++ b/src/solaris/classes/java/lang/ClassLoaderHelper.java
@@ -0,0 +1,42 @@
+/*
+ * 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.
+ */
+package java.lang;
+
+import java.io.File;
+
+class ClassLoaderHelper {
+
+    private ClassLoaderHelper() {}
+
+    /**
+     * Returns an alternate path name for the given file
+     * such that if the original pathname did not exist, then the
+     * file may be located at the alternate location.
+     * For most platforms, this behavior is not supported and returns null.
+     */
+    static File mapAlternativeName(File lib) {
+        return null;
+    }
+}
diff --git a/src/windows/classes/java/lang/ClassLoaderHelper.java b/src/windows/classes/java/lang/ClassLoaderHelper.java
new file mode 100644
index 0000000000000000000000000000000000000000..f9baf8ac6c7f8fb31e62a01eae4fb1cf358f60df
--- /dev/null
+++ b/src/windows/classes/java/lang/ClassLoaderHelper.java
@@ -0,0 +1,42 @@
+/*
+ * 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.
+ */
+package java.lang;
+
+import java.io.File;
+
+class ClassLoaderHelper {
+
+    private ClassLoaderHelper() {}
+
+    /**
+     * Returns an alternate path name for the given file
+     * such that if the original pathname did not exist, then the
+     * file may be located at the alternate location.
+     * For most platforms, this behavior is not supported and returns null.
+     */
+    static File mapAlternativeName(File lib) {
+        return null;
+    }
+}