Parameters are corrupted in Servlet Post method Why

Question

Arguement from Client is
"This is my Test"
But in the servlet the output is
STRING BUFFER�φ ♣t ♫This is a Test
Applet Code is
URL url =new URL("http://localhost:8080/portal/servlet/com.kbs.framework.client.gui.ReportServlet");
HttpURLConnection servletConnection = (HttpURLConnection)url.openConnection();
servletConnection.setDoInput(true);
servletConnection.setDoOutput(true);
servletConnection.setUseCaches(false);
servletConnection.setDefaultUseCaches(false);
servletConnection.setRequestMethod("POST");
servletConnection.setRequestProperty("Content-type","application/octet-stream");
servletConnection.addRequestProperty("COMMAND" ,"test");
servletConnection.setRequestProperty("COMMAND" ,"tes");
ObjectOutputStream outStream =
new ObjectOutputStream(servletConnection.getOutputStream());
System.out.println("CLIENT COMMAND" + command.trim());
outStream.writeObject("This is a Test");
outStream.flush();
outStream.close();
Servlet Post method
try
System.out.println("**********************************************");
System.out.println("COMMAND IS" + request.getParameter("COMMAND"));
InputStream requestInputStream = request.getInputStream();
System.out.println("REQUEST INPUT STREAM" + requestInputStream);
InputStreamReader isr = new InputStreamReader(requestInputStream);
System.out.println("REQUEST INPUT STREAM ReaDER" + isr);
BufferedReader br = new BufferedReader(isr);
System.out.println("BUFFERED READER" + br);
String line = "";
StringBuffer sb= new StringBuffer();
while ((line = br.readLine()) != null)
     sb.append(line);
     br.close();
System.out.println("STRING BUFFER" + sb.toString()); // display the input Stream

Answer 1

My guess is that you wrote the String "THIS IS A TEST" as a serializable object but tried to read it as character text.
ObjectOutputStream outStream =
new ObjectOutputStream(servletConnection.getOutputStream());
outStream.writeObject("This is a Test");Serializing an Object stores extra data so that the Object can re-instantiated and it is this extra data that you are seeing.