Question

I’m trying to force my Java applet’s HTTP network traffic through Fiddler, and I’m not having any luck. Fiddler is running on my localhost on port 8888, and so I have set these values in my applet:

System.getProperties().put("proxyHost", "localhost");
System.getProperties().put("proxyPort", "8888");

When I do this, I get the following exception in the Java Console as soon as I try to create a socket:

java.net.SocketException: Unknown proxy type : HTTP

According to Java bug 6370908, the HTTP proxy type is not supported by the socket class. So my question is, how can I drive my socket traffic through Fiddler? If it cannot be done, is there some other network monitoring tool that will allow me to see the traffic? I’m not a networking expert, so maybe I’m missing something simple here.

I should also note that running directly from Eclipse doesn’t seem possible, since my applet is expecting various HTML page elements to be present.

Answer 1

I don’t know if it’s possible using Fiddler but you could give Wireshark a try.