Makes more sense to put this in the reflect lookup.

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

@@ -1,22 +1,14 @@
 package com.comphenix.protocol.injector.server;
 
-import java.io.FilterInputStream;
 import java.io.InputStream;
-import java.lang.reflect.Field;
 import java.net.Socket;
 import java.net.SocketAddress;
 import org.bukkit.Server;
 import org.bukkit.entity.Player;
 
 import com.comphenix.protocol.error.ErrorReporter;
-import com.comphenix.protocol.reflect.FieldAccessException;
-import com.comphenix.protocol.reflect.FieldUtils;
-import com.comphenix.protocol.reflect.FuzzyReflection;
 
 public abstract class AbstractInputStreamLookup {
-	// Used to access the inner input stream of a filtered input stream
-	private static Field filteredInputField;
-
 	// Error reporter
 	protected final ErrorReporter reporter;
 	
@@ -28,30 +20,6 @@ public abstract class AbstractInputStreamLookup {
 		this.server = server;
 	}
 
-	/**
-	 * Retrieve the underlying input stream that is associated with a given filter input stream.
-	 * @param filtered - the filter input stream.
-	 * @return The underlying input stream that is being filtered.
-	 * @throws FieldAccessException Unable to access input stream.
-	 */
-	protected static InputStream getInputStream(FilterInputStream filtered) {
-		if (filteredInputField == null)
-			filteredInputField = FuzzyReflection.fromClass(FilterInputStream.class, true).
-								  getFieldByType("in", InputStream.class);
-		
-		InputStream current = filtered;
-		
-		try {
-			// Iterate until we find the real input stream
-			while (current instanceof FilterInputStream) {
-				current = (InputStream) FieldUtils.readField(filteredInputField, current, true);
-			}
-			return current;
-		} catch (IllegalAccessException e) {
-			throw new FieldAccessException("Cannot access filtered input field.", e);
-		}
-	}
-
 	/**
 	 * Inject the given server thread or dedicated connection.
 	 * @param container - class that contains a ServerSocket field.

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

@@ -18,6 +18,9 @@ import com.comphenix.protocol.reflect.FuzzyReflection;
 import com.google.common.collect.MapMaker;
 
 class InputStreamReflectLookup extends AbstractInputStreamLookup {
+	// Used to access the inner input stream of a filtered input stream
+	private static Field filteredInputField;
+	
 	// The default lookup timeout
 	private static final long DEFAULT_TIMEOUT = 2000; // ms
 	
@@ -123,6 +126,30 @@ class InputStreamReflectLookup extends AbstractInputStreamLookup {
 		return result;
 	}
 	
+	/**
+	 * Retrieve the underlying input stream that is associated with a given filter input stream.
+	 * @param filtered - the filter input stream.
+	 * @return The underlying input stream that is being filtered.
+	 * @throws FieldAccessException Unable to access input stream.
+	 */
+	protected static InputStream getInputStream(FilterInputStream filtered) {
+		if (filteredInputField == null)
+			filteredInputField = FuzzyReflection.fromClass(FilterInputStream.class, true).
+								  getFieldByType("in", InputStream.class);
+		
+		InputStream current = filtered;
+		
+		try {
+			// Iterate until we find the real input stream
+			while (current instanceof FilterInputStream) {
+				current = (InputStream) FieldUtils.readField(filteredInputField, current, true);
+			}
+			return current;
+		} catch (IllegalAccessException e) {
+			throw new FieldAccessException("Cannot access filtered input field.", e);
+		}
+	}
+	
 	@Override
 	public void setSocketInjector(SocketAddress address, SocketInjector injector) {
 		if (address == null)