Add Java version to pom.xml

- Implement PreSendLoginEvent in paper

pom.xml

@@ -9,6 +9,11 @@
     <packaging>pom</packaging>
     <version>1.1.0</version>
 
+    <properties>
+        <maven.compiler.source>16</maven.compiler.source>
+        <maven.compiler.target>16</maven.compiler.target>
+    </properties>
+
     <pluginRepositories>
         <pluginRepository>
             <id>apache.snapshots</id>
@@ -36,7 +41,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-shade-plugin</artifactId>
-                <version>3.3.0-SNAPSHOT</version>
+                <version>3.3.1-SNAPSHOT</version>
                 <executions>
                     <execution>
                         <phase>package</phase>

proxy/pom.xml

@@ -9,6 +9,11 @@
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
+    <properties>
+        <maven.compiler.source>16</maven.compiler.source>
+        <maven.compiler.target>16</maven.compiler.target>
+    </properties>
+
     <artifactId>proxy</artifactId>
 
     <repositories>

spigot/src/main/java/com/glyart/authmevelocity/spigot/events/PreSendLoginEvent.java

@@ -0,0 +1,31 @@
+package com.glyart.authmevelocity.spigot.events;
+
+import org.bukkit.entity.Player;
+import org.bukkit.event.Cancellable;
+import org.bukkit.event.HandlerList;
+import org.bukkit.event.player.PlayerEvent;
+import org.jetbrains.annotations.NotNull;
+
+public class PreSendLoginEvent extends PlayerEvent implements Cancellable {
+    private static final HandlerList HANDLERS = new HandlerList();
+    private boolean isCancelled;
+
+    public PreSendLoginEvent(@NotNull Player player) {
+        super(player);
+    }
+
+    @Override
+    public boolean isCancelled() {
+        return isCancelled;
+    }
+
+    @Override
+    public void setCancelled(boolean cancelled) {
+        this.isCancelled = cancelled;
+    }
+
+    @Override
+    public @NotNull HandlerList getHandlers() {
+        return HANDLERS;
+    }
+}

spigot/src/main/java/com/glyart/authmevelocity/spigot/listeners/AuthMeListener.java

@@ -1,7 +1,12 @@
 package com.glyart.authmevelocity.spigot.listeners;
 
 import com.glyart.authmevelocity.spigot.AuthMeVelocityPlugin;
+import com.glyart.authmevelocity.spigot.events.PreSendLoginEvent;
+
 import fr.xephi.authme.events.LoginEvent;
+
+import org.bukkit.Bukkit;
+import org.bukkit.entity.Player;
 import org.bukkit.event.EventHandler;
 import org.bukkit.event.Listener;
 
@@ -14,6 +19,11 @@ public class AuthMeListener implements Listener {
 
     @EventHandler
     public void onLogin(LoginEvent event) {
-        plugin.sendLoginToProxy(event.getPlayer());
+        Player player = event.getPlayer();
+        PreSendLoginEvent sendloginevent = new PreSendLoginEvent(player);
+        Bukkit.getPluginManager().callEvent(sendloginevent);
+        if(!sendloginevent.isCancelled()){
+            plugin.sendLoginToProxy(player);
+        }
     }
 }