diff --git a/data/plugins/bootstrap.rb b/data/plugins/bootstrap.rb
index d0b6ea03..fee25fad 100644
--- a/data/plugins/bootstrap.rb
+++ b/data/plugins/bootstrap.rb
@@ -50,7 +50,9 @@ class ProcCommandListener < CommandListener
 end
 
 # A LoginListener that executes a Proc object with the player argument.
-class ProcLoginListener < LoginListener
+class ProcLoginListener 
+  java_implements LoginListener
+
   def initialize(block)
     super()
     @block = block
@@ -62,7 +64,9 @@ class ProcLoginListener < LoginListener
 end
 
 # A LogoutListener that executes a Proc object with the player argument.
-class ProcLogoutListener < LogoutListener
+class ProcLogoutListener 
+  java_implements LogoutListener
+
   def initialize(block)
     super()
     @block = block
diff --git a/src/org/apollo/game/login/LoginListener.java b/src/org/apollo/game/login/LoginListener.java
index e1470952..5fcc2ea4 100644
--- a/src/org/apollo/game/login/LoginListener.java
+++ b/src/org/apollo/game/login/LoginListener.java
@@ -7,7 +7,8 @@ import org.apollo.game.model.entity.Player;
  * 
  * @author Major
  */
-public abstract class LoginListener {
+@FunctionalInterface
+public interface LoginListener {
 
 	/**
 	 * Executes the action for this listener.
diff --git a/src/org/apollo/game/login/LogoutListener.java b/src/org/apollo/game/login/LogoutListener.java
index 43e092c4..8a67f5ee 100644
--- a/src/org/apollo/game/login/LogoutListener.java
+++ b/src/org/apollo/game/login/LogoutListener.java
@@ -7,7 +7,8 @@ import org.apollo.game.model.entity.Player;
  * 
  * @author Major
  */
-public abstract class LogoutListener {
+@FunctionalInterface
+public interface LogoutListener {
 
 	/**
 	 * Executes the action for this listener.
diff --git a/src/org/apollo/game/model/area/SectorListener.java b/src/org/apollo/game/model/area/SectorListener.java
index 22e5b8f6..c99d6433 100644
--- a/src/org/apollo/game/model/area/SectorListener.java
+++ b/src/org/apollo/game/model/area/SectorListener.java
@@ -7,7 +7,8 @@ import org.apollo.game.model.entity.Entity;
  * 
  * @author Major
  */
-public abstract class SectorListener {
+@FunctionalInterface
+public interface SectorListener {
 
 	/**
 	 * Executes the action for this listener.