Question

I am working on a SSL client server program and I have to reuse the following method.

private boolean postMessage(String message){     try{           String serverURLS = getRecipientURL(message);           serverURLS = 'https:\\\\abc.my.domain.com:55555\\update';           if (serverURLS != null){              serverURL = new URL(serverURLS);          }          HttpsURLConnection conn = (HttpsURLConnection)serverURL.openConnection();          conn.setHostnameVerifier(new HostnameVerifier() {          public boolean verify(String arg0, SSLSession arg1) {             return true;         }          });          conn.setDoOutput(true);          OutputStream os = conn.getOutputStream();          OutputStreamWriter wr = new OutputStreamWriter(os);          wr.write(message);          wr.flush();          if (conn.getResponseCode() != HttpsURLConnection.HTTP_OK)             return false;         else             return true;      } 

Here ServerURL is initialized as

private URL serverURL = null; 

When I try to execute this method I get an exception at Line,

OutputStream os = conn.getOutputStream();

The exception is

java.lang.IllegalArgumentException: protocol = https host = null 

What is the reason for this?

Answer 1

URLs use forward slashes (/), not backward ones (as windows). Try:

serverURLS = 'https://abc.my.domain.com:55555/update'; 

The reason why you get the error is that the URL class can’t parse the host part of the string and therefore, host is null.