diff --git a/java/src/com/bluekitchen/btstack/Event.java b/java/src/com/bluekitchen/btstack/Event.java
index e57f1ce99..3d35819ed 100644
--- a/java/src/com/bluekitchen/btstack/Event.java
+++ b/java/src/com/bluekitchen/btstack/Event.java
@@ -10,7 +10,7 @@ public class Event extends Packet {
 		super(HCI_EVENT_PACKET, 0, packet.getBuffer(), packet.getPayloadLen());
 	}
 	
-	public int getEventType(){
+	public final int getEventType(){
 		return Util.readByte(data, 0);
 	}
 		
diff --git a/java/src/com/bluekitchen/btstack/Packet.java b/java/src/com/bluekitchen/btstack/Packet.java
index f809ea356..868202d42 100644
--- a/java/src/com/bluekitchen/btstack/Packet.java
+++ b/java/src/com/bluekitchen/btstack/Packet.java
@@ -10,19 +10,19 @@ public class Packet {
 	protected int packetType;
 	protected int channel;
 	
-	public int getPacketType() {
+	public final int getPacketType() {
 		return packetType;
 	}
 
-	public byte[] getBuffer() {
+	public final byte[] getBuffer() {
 		return data;
 	}
 	
-	public int getPayloadLen(){
+	public final int getPayloadLen(){
 		return payloadLen;
 	}
 
-	public int getChannel() {
+	public final int getChannel() {
 		return channel;
 	}