Just discovered two very-very nice features of Eclipse:
1. Build in TCP/IP monitor that acts as intercepting proxy. No need for special Fiddler configuration or TCPMON anymore.
2. Ctrl+3. Click it and type "tcp monitor" or "new class" and see what happens.
P.S. Btw, the feature that all IntelliJ users was so proud of: the ability to find class by its capital letters is also supported. I'm not sure when it was added to IDE, but now it just works. Example: Click Ctrl+Shift+T and type "SB" you'll get both StringBuilder and StringBuffer.