--- a/src/share/classes/java/lang/ClassLoader.java	Mon Jan 30 07:37:43 2012 +0000
+++ b/src/share/classes/java/lang/ClassLoader.java	Mon Jan 30 07:43:40 2012 +0000
@@ -1846,12 +1846,6 @@
             if (loadLibrary0(fromClass, libfile)) {
                 return;
             }
-            for (String libname : System.mapLegacyLibraryNames(name)) {
-                libfile = new File(sys_paths[i], libname);
-                if (loadLibrary0(fromClass, libfile)) {
-                    return;
-                }
-            }
         }
         if (loader != null) {
             for (int i = 0 ; i < usr_paths.length ; i++) {
@@ -1860,12 +1854,6 @@
                 if (loadLibrary0(fromClass, libfile)) {
                     return;
                 }
-                for (String libname : System.mapLegacyLibraryNames(name)) {
-                    libfile = new File(usr_paths[i], libname);
-                    if (loadLibrary0(fromClass, libfile)) {
-                        return;
-                    }
-                }
             }
         }
         // Oops, it failed

--- a/src/share/classes/java/lang/System.java	Mon Jan 30 07:37:43 2012 +0000
+++ b/src/share/classes/java/lang/System.java	Mon Jan 30 07:43:40 2012 +0000
@@ -1098,26 +1098,6 @@
      */
     public static native String mapLibraryName(String libname);
 
-    static boolean systemUsesJnilib;
-    /**
-     * On platforms which have a different legacy name for libraries
-     * (such that mapLibraryName is inappropriate, because it can't tell
-     * which to use), returns an array of possible alternate library names.
-     *
-     * This exists entirely for the benefit of ClassLoader and should not
-     * be used directly.
-     */
-    static String []mapLegacyLibraryNames(String libname) {
-        if (!systemUsesJnilib)
-            return new String[0];
-
-        String mappedName = mapLibraryName(libname);
-        String names[] = new String[1];
-        names[0] = mappedName.substring(0, mappedName.lastIndexOf("dylib")) + "jnilib";
-
-        return names;
-    }
-
     /**
      * Initialize the system class.  Called after thread initialization.
      */
@@ -1183,12 +1163,6 @@
         Thread current = Thread.currentThread();
         current.getThreadGroup().add(current);
 
-        // Cache systemUsesJnilib, which needs to be set after initProperties
-        // is called. This is done to avoid slowing down mapLegacyLibraryNames
-        // for the uncommon case of it having to return something.
-        String osName = System.getProperty("os.name");
-        systemUsesJnilib = osName.startsWith("Mac OS X") || osName.startsWith("Darwin");
-
         // register shared secrets
         setJavaLangAccess();
     }