java https networking issue

Question

I\'m trying to implement simplest HTTPS communication program. There are a lot of examples on the web, but I fail to run them successfully.
Here is one example:

Answer 1

Issue with sockets was caused by proxy. I've wrong concluded if I don't get java.net.ConnectException: Connection refused: connect (in case proxy is not configured at all) proxy should not cause issue. In a 'guest network' (without proxy) application appeared to be working. As it turned out proxy had different configuration for each protocol and my company policy deprecate raw sockets connections.

Answer 2

I type the above code on my Eclipse IDE, and it runs well. I think one problem that you may encounter is with your proxy server.

The response was:

HTTP/1.1 301 Moved Permanently
Server: Sun-Java-System-Web-Server/7.0
Date: Fri, 25 Feb 2011 11:52:30 GMT
P3p: policyref="http://www.sun.com/p3p/Sun_P3P_Policy.xml", CP="CAO DSP COR CUR ADMa DEVa TAIa PSAa PSDa CONi TELi OUR  SAMi PUBi IND PHY ONL PUR COM NAV INT DEM CNT STA POL PRE GOV"Location: http://www.oracle.com/us/sun
Content-length: 0
Connection: close

What I changed from your code was only this snippet:

System.setProperty("java.net.useSystemProxies", "false");

Just my guess:

• your network there actually doesn't use proxy but you turned it on, or
• your proxy doesn't support HTTPS or
• your proxy HTTPS support for your user is disabled (either intentionally or unintentionally).

was:

If you are not intended to write a low level library... How about using [Http Components from Apache][1]?

[1]: http://hc.apache.org/index.html

Answer 3

Did you write this code yourself or copy it from somewhere? I only ask because it is not the way I usually make a HTTPS connection. The first thing I'd do when testing HTTPS is find server that will respond to a HTTPS request. www.sun.com will redirect to an Oracle page and while this is still valid it is possibly not what you want.
I can't be 100% sure on the first but I suspect you're suffering from either a blocking read or write. Debugging could help.
The only time I have seen that stack trace was when the JCE classes for Java 5 and 6 were mixed up and the Java version couldn't cope. The same code in HttpsTest "works for me"