Essentially, it's a lookup for a player's input stream.

Or: InputStream -> PlayerInjector -> Player.

ProtocolLib/src/main/java/com/comphenix/protocol/injector/player/InjectedServerConnection.java

@@ -27,7 +27,7 @@ import net.sf.cglib.proxy.Factory;
 import org.bukkit.Server;
 
 import com.comphenix.protocol.error.ErrorReporter;
-import com.comphenix.protocol.injector.server.InjectedServerSocket;
+import com.comphenix.protocol.injector.server.InputStreamPlayerLookup;
 import com.comphenix.protocol.reflect.FieldUtils;
 import com.comphenix.protocol.reflect.FuzzyReflection;
 import com.comphenix.protocol.reflect.ObjectWriter;
@@ -55,7 +55,7 @@ class InjectedServerConnection {
 	private NetLoginInjector netLoginInjector;
 	
 	// Inject server connections
-	private InjectedServerSocket socketInjector; 
+	private InputStreamPlayerLookup socketInjector; 
 	
 	private Server server;
 	private ErrorReporter reporter;
@@ -64,7 +64,7 @@ class InjectedServerConnection {
 	
 	private Object minecraftServer = null;
 	
-	public InjectedServerConnection(ErrorReporter reporter, InjectedServerSocket socketInjector, Server server, NetLoginInjector netLoginInjector) {
+	public InjectedServerConnection(ErrorReporter reporter, InputStreamPlayerLookup socketInjector, Server server, NetLoginInjector netLoginInjector) {
 		this.listFields = new ArrayList<VolatileField>();
 		this.replacedLists = new ArrayList<ReplacedArrayList<Object>>();
 		this.reporter = reporter;

ProtocolLib/src/main/java/com/comphenix/protocol/injector/player/NetLoginInjector.java

@@ -25,7 +25,7 @@ import org.bukkit.entity.Player;
 
 import com.comphenix.protocol.error.ErrorReporter;
 import com.comphenix.protocol.injector.GamePhase;
-import com.comphenix.protocol.injector.server.InjectedServerSocket;
+import com.comphenix.protocol.injector.server.InputStreamPlayerLookup;
 import com.comphenix.protocol.injector.server.SocketInjector;
 import com.comphenix.protocol.reflect.FuzzyReflection;
 import com.comphenix.protocol.utility.MinecraftReflection;
@@ -45,12 +45,12 @@ class NetLoginInjector {
 	private ProxyPlayerInjectionHandler injectionHandler;
 	
 	// Associate input streams and injectors
-	private InjectedServerSocket serverSocket;
+	private InputStreamPlayerLookup serverSocket;
 	
 	// The current error rerporter
 	private ErrorReporter reporter;
 	
-	public NetLoginInjector(ErrorReporter reporter, ProxyPlayerInjectionHandler injectionHandler, InjectedServerSocket serverSocket) {
+	public NetLoginInjector(ErrorReporter reporter, ProxyPlayerInjectionHandler injectionHandler, InputStreamPlayerLookup serverSocket) {
 		this.reporter = reporter;
 		this.injectionHandler = injectionHandler;
 		this.serverSocket = serverSocket;

ProtocolLib/src/main/java/com/comphenix/protocol/injector/player/ProxyPlayerInjectionHandler.java

@@ -36,7 +36,7 @@ import com.comphenix.protocol.injector.GamePhase;
 import com.comphenix.protocol.injector.ListenerInvoker;
 import com.comphenix.protocol.injector.PlayerLoggedOutException;
 import com.comphenix.protocol.injector.PacketFilterManager.PlayerInjectHooks;
-import com.comphenix.protocol.injector.server.InjectedServerSocket;
+import com.comphenix.protocol.injector.server.InputStreamPlayerLookup;
 import com.comphenix.protocol.injector.server.SocketInjector;
 import com.comphenix.protocol.injector.server.TemporaryPlayerFactory;
 import com.google.common.base.Predicate;
@@ -52,7 +52,7 @@ class ProxyPlayerInjectionHandler implements PlayerInjectionHandler {
 	private InjectedServerConnection serverInjection;
 	
 	// Server socket injection
-	private InjectedServerSocket serverSocket;
+	private InputStreamPlayerLookup serverSocket;
 	
 	// NetLogin injector
 	private NetLoginInjector netLoginInjector;
@@ -96,7 +96,7 @@ class ProxyPlayerInjectionHandler implements PlayerInjectionHandler {
 		this.invoker = invoker;
 		this.injectionFilter = injectionFilter;
 		this.packetListeners = packetListeners;
-		this.serverSocket = new InjectedServerSocket(reporter, server);
+		this.serverSocket = new InputStreamPlayerLookup(reporter, server);
 		this.netLoginInjector = new NetLoginInjector(reporter, this, serverSocket);
 		this.serverInjection = new InjectedServerConnection(reporter, serverSocket, server, netLoginInjector);
 		serverInjection.injectList();

ProtocolLib/src/main/java/com/comphenix/protocol/injector/server/InputStreamPlayerLookup.java

@@ -34,7 +34,7 @@ import com.google.common.collect.MapMaker;
  *  
  * @author Kristian
  */
-public class InjectedServerSocket {
+public class InputStreamPlayerLookup {
 	/**
 	 * The read and connect timeout for our built-in MOTD reader.
 	 */
@@ -162,7 +162,7 @@ public class InjectedServerSocket {
 	// Used to create fake players
 	private TemporaryPlayerFactory tempPlayerFactory = new TemporaryPlayerFactory();
 
-	public InjectedServerSocket(ErrorReporter reporter, Server server) {
+	public InputStreamPlayerLookup(ErrorReporter reporter, Server server) {
 		this.reporter = reporter;
 		this.server = server;
 	}