Sep 20 11:44:10 Updated: krb5-workstation-1.9-33.el6_3.3.x86_64
Sep 20 11:44:11 Updated: qpid-cpp-server-ssl-0.14-22.el6_3.x86_64
Sep 20 11:44:11 Updated: qpid-tools-0.14-6.el6_3.noarch
Sep 21 11:58:30 Updated: libxml2-2.7.6-8.el6_3.3.x86_64
Sep 21 11:58:35 Updated: libxml2-devel-2.7.6-8.el6_3.3.x86_64
Sep 21 11:58:37 Updated: libxml2-python-2.7.6-8.el6_3.3.x86_64
Sep 26 19:01:09 Updated: kernel-firmware-2.6.32-279.9.1.el6.noarch
Sep 26 19:01:21 Installed: kernel-2.6.32-279.9.1.el6.x86_64
Sep 26 19:01:44 Installed: kernel-devel-2.6.32-279.9.1.el6.x86_64
Sep 26 19:01:51 Updated: kernel-headers-2.6.32-279.9.1.el6.x86_64
Sep 26 19:02:12 Updated: google-chrome-stable-22.0.1229.79-158531.x86_64

public static void tail(File src, OutputStream out, int maxLines) throws FileNotFoundException, IOException {
    BufferedReader reader = new BufferedReader(new FileReader(src));
    String[] lines = new String[maxLines];
    int lastNdx = 0;
    for (String line=reader.readLine(); line != null; line=reader.readLine()) {
        if (lastNdx == lines.length) {
            lastNdx = 0;
        }
        lines[lastNdx++] = line;
    }

    OutputStreamWriter writer = new OutputStreamWriter(out);
    for (int ndx=lastNdx; ndx != lastNdx-1; ndx++) {
        if (ndx == lines.length) {
            ndx = 0;
        }
        writer.write(lines[ndx]);
        writer.write("n");
    }

    writer.flush();
}