Minecraft 14w05a server log out issue

I connected to my Mincraft14w05a server (localhost) and I was "removed by a remote host". I have no idea why my own server kicked me off. I recreated (since I can't copy and paste the Minecraft server text) the text from my server showing the exact details. It also happened the three times I tried afterward. Please give me an explanation to how this may have happened.
"FlameRunnerFast lost connection: TranslatableComponent {key='disconnect.genericReason', args=[Internal Exception: java.io.IOException: An existing connection was forcibly closed by the remote host], siblings=[], style=Style{hasParent=false, color=null, bold=null, italic=null, underlined=null, obfuscated=null, clickEvent=null hoverEvent=null, insertion=null}}"