in tools/erlanalysis/src/main/java/org/apache/dubbo/erlang/analysis/App.java [30:45]
public static void writesome() throws IOException {
UserInfo user = new UserInfo();
user.setAge(10);
user.setUsername("userabc");
user.setPassword("password");
ByteArrayOutputStream os = new ByteArrayOutputStream();
HessianOutput ho = new HessianOutput(os);
ho.writeObject(user);
FileOutputStream out = new FileOutputStream("/tmp/hessian.data");
out.write(os.toByteArray());
out.flush();
out.close();
}