[SOLVED] Host name may not be null while using HttpClient

I am developing an app in android. I am using web services in android. I just changed url for web services. I added underScore(_) in url.

I am getting this error "Host name may not be null while using httpClient". I found that there was a issue of underScore while using HttpClient.

From this and this, I have found that bug was filed for this. But I couldn't find a solution for this.

Note : I am using HttpClient for this. So I don't want to change implementation to something else unless I have to.

How I can use underscore in host name while calling web services using HttpClient ?

Apache doesn't support underscore. So when I changed it to dash(-), it started working.