Properly cleanup ByteBuf in WirePacket (#487)

* Properly cleanup ByteBuf

* Release store ByteBuf also

modules/API/src/main/java/com/comphenix/protocol/injector/netty/WirePacket.java

@@ -158,7 +158,7 @@ public class WirePacket {
 	 * bytes from that packet
 	 * 
 	 * @param packet Existing packet
-	 * @return The ByteBuf
+	 * @return the byte array
 	 */
 	public static byte[] bytesFromPacket(PacketContainer packet) {
 		checkNotNull(packet, "packet cannot be null!");
@@ -177,6 +177,8 @@ public class WirePacket {
 
 		byte[] bytes = getBytes(buffer);
 		
+		buffer.release();
+
 		// Rewrite them to the packet to avoid issues with certain packets
 		if (packet.getType() == PacketType.Play.Server.CUSTOM_PAYLOAD
 				|| packet.getType() == PacketType.Play.Client.CUSTOM_PAYLOAD) {
@@ -195,6 +197,8 @@ public class WirePacket {
 			return ret;
 		}
 		
+		store.release();
+
 		return bytes;
 	}
 
@@ -220,7 +224,11 @@ public class WirePacket {
 			throw new RuntimeException("Failed to serialize packet contents.", ex);
 		}
 		
-		return new WirePacket(id, getBytes(buffer));
+		byte[] bytes = getBytes(buffer);
+		
+		buffer.release();
+
+		return new WirePacket(id, bytes);
 	}
 
 	public static void writeVarInt(ByteBuf output, int i) {