Make some listeners Functional Interfaces.

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

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.

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.

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.