Sorted:

android – getting headers from URL causing my application crash-Collection of common programming errors

Android parsing json returns exception-Collection of common programming errors

Android AsyncTask connection refuses emulator + Mamp-Collection of common programming errors

problem about pandastream-Collection of common programming errors

problem about mediacodec-Collection of common programming errors

problem about javax.mail-Collection of common programming errors

problem about content-type-Collection of common programming errors

Google Maps Android V2 application crashing-Collection of common programming errors

Exception reusing HttpClient https connection-Collection of common programming errors

With HttpClient 4.3.x, executing a HttpHead for a specific URL gives NoHttpResponseException-Collection of common programming errors