Using TeamCity with Appium and Maven throws MalformedUrlException

Question

I'm trying to integrate my UI testing (for iOS app, code in Java, using Appium 0.16) into TeamCity 7.1 for automation, but I get a MalformedUrlException on TeamCity build log. It works perfectly from command line (without TeamCity). I'm running Appium on 127.0.0.1 local address and give an appropriate parameter to the WebDriver:

http://127.0.0.1/hub/wd

I tried several other configurations:

• replacing the local IP with the agent's IP address;
• setting Maven goals (on TeamCity UI) to test, to surefire:test or clean install.

Nothing solves this.