Assume.assumeTrue("Charset is not supported on this VM " + oemEncoding, false);
        }
        runFilenameTest(splitString(str, 8));
    }


    private static String makeCharsetString ( Charset cs, int min, int max, int... excludes ) {
        ByteBuffer buf = ByteBuffer.allocate(128);
        Arrays.sort(excludes);
        for ( int i = 128; i < 255; i++ ) {
            int idx = Arrays.binarySearch(excludes, i);