CODEWITHSUNDEEP
javaurlconnectionsocketexception
sd_19x4
sd_19x4

Reputation: 27

SocketException: Network not reachable

I developped a small Gui application that downloads log files from a remote server. The Application works fine if I start it from within the Netbeans IDE 7.2 (no connection problems)

But if I start it as a standalone jar file, I get a socket exception indicating that the network is not reachable.

The code that creates the connection is as follows:

...
CookieManager manager = new CookieManager();
manager.setCookiePolicy(CookiePolicy.ACCEPT_ALL);
CookieHandler.setDefault(manager);

URL url = new URL(logFileRemotePath);
URLConnection conn = url.openConnection();
InputStream input = conn.getInputStream();
...

The exception received is:

java.net.SocketException: Network is unreachable: connect

Any Ideas

Thanks in advance

Upvotes: 0

Views: 1791

Answers (1)

Jörg
Jörg

Reputation: 2494

If your operating system has a firewall running, it is possible that it is configured in a way, that it allows network access from Netbeans, but not from executing a jar.

Do you get the exception instantaneously or after a normal timeout period? If it's the former, it means some component between your application and the network resource is immediately resetting your connection - for example some firewall.

Upvotes: 2

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