We saw this issue too and were able to resolve it by adding these 4 lines of code, which we found on this web page:

[http://leanft-help.saas.hp.com/en/12.53/HelpCenter/Content/HowTo/CustomFrameworks.htm?Highlight=setServerAddress][1]

ModifiableSDKConfiguration config = new ModifiableSDKConfiguration();
config.setServerAddress(new URI(''ws://myServerAddress:5095''));
SDK.init(config);
Reporter.init();

We added this to
Just change the 'myServerAddress' to your server's URL and it should work.

[1]: http://leanft-help.saas.hp.com/en/12.53/HelpCenter/Content/HowTo/CustomFrameworks.htm?Highlight=setServerAddress