In short it means Java had a problem with the connection and therefore reset it effectively kicking you off a server (or stopping you from joining). Just simply try to re-join.
This is quit common,don't worry it probably means that notch has taken minecraft down for a bit to add updates that's why p ( had same problem myself) Hope this helped
internal reports
Your internal IP is 127.0.0.1
It is basicly a cable that has a connection to the internet.
You should always talk to your doctor if you have any kind of persistent problem. Internal allergy possibilities are no exception.
Bad wiring connection or internal wiring connection in the stereo
They are widely distributed throughout the skin and internal tissues, with the exception of the nervous tissue of the brain.
Deciding whether or not to stay true to one's heritage is an example of internal conflict.
Deciding whether or not to stay true to one’s heritage is an example of internal conflict
speed, memory, security, and connection
A PATA connector
The answer is that you didnt make the PATH in your Java