Calling servlet from another servlet

Question

I have two servlets which are running on different tomcat servers.

I and trying to call a servlet1 from servlet2 in the following way and wanted to write an object to output stream.

URL url=new URL("http://msyserver/abc/servlet1");
URLConnection con=url.openConnection();
con.setDoOutput(true);
con.setDoInput(true);
OutputStream os=con.getOutputStream();
ObjectOutputStream oos=new ObjectOutputStream(os);
oos.writeObject(pushEmailDTO);
oos.flush();
oos.close();

The problem is that i am unable to hit the servlet? I cannot figure out what i am missing.

Answer 1

I cannot unnderstand but it worked by adding the following line in the code.

con.getExpiration();

like this

URL url=new URL("http://msyserver/abc/servlet1");
URLConnection con=url.openConnection();
con.setDoOutput(true);
con.setDoInput(true);
con.getExpiration();//<----------
OutputStream os=con.getOutputStream();
ObjectOutputStream oos=new ObjectOutputStream(os);
oos.writeObject(pushEmailDTO);
oos.flush();
oos.close();