fix npe when new pet target is null

pom.xml

@@ -6,7 +6,7 @@
 
     <groupId>me.youhavetrouble</groupId>
     <artifactId>PreventStabby</artifactId>
-    <version>1.3-pre4</version>
+    <version>1.5.1</version>
     <packaging>jar</packaging>
 
     <name>PreventStabby</name>
@@ -22,7 +22,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>
-                <version>3.1</version>
+                <version>3.8.1</version>
                 <configuration>
                     <source>${java.version}</source>
                     <target>${java.version}</target>
@@ -47,7 +47,6 @@
                                 </relocation>
                                 <relocation>
                                     <pattern>org.bstats</pattern>
-                                    <!-- Replace this with your package! -->
                                     <shadedPattern>bstats</shadedPattern>
                                 </relocation>
                             </relocations>
@@ -81,6 +80,10 @@
             <id>sk89q-repo</id>
             <url>https://maven.enginehub.org/repo/</url>
         </repository>
+        <repository>
+            <id>placeholderapi</id>
+            <url>https://repo.extendedclip.com/content/repositories/placeholderapi/</url>
+        </repository>
     </repositories>
 
     <dependencies>
@@ -93,13 +96,13 @@
         <dependency>
             <groupId>org.projectlombok</groupId>
             <artifactId>lombok</artifactId>
-            <version>1.18.12</version>
+            <version>1.18.22</version>
             <scope>provided</scope>
         </dependency>
         <dependency>
             <groupId>org.reflections</groupId>
             <artifactId>reflections</artifactId>
-            <version>0.9.12</version>
+            <version>0.10.2</version>
         </dependency>
         <dependency>
             <groupId>com.github.thatsmusic99</groupId>
@@ -109,7 +112,7 @@
         <dependency>
             <groupId>org.bstats</groupId>
             <artifactId>bstats-bukkit</artifactId>
-            <version>2.2.1</version>
+            <version>3.0.0</version>
             <scope>compile</scope>
         </dependency>
         <dependency>
@@ -118,5 +121,11 @@
             <version>7.0.4-SNAPSHOT</version>
             <scope>provided</scope>
         </dependency>
+        <dependency>
+            <groupId>me.clip</groupId>
+            <artifactId>placeholderapi</artifactId>
+            <version>2.11.1</version>
+            <scope>provided</scope>
+        </dependency>
     </dependencies>
 </project>

src/main/java/me/youhavetrouble/preventstabby/PreventStabby.java

@@ -2,6 +2,7 @@ package me.youhavetrouble.preventstabby;
 
 import me.youhavetrouble.preventstabby.commands.MainCommand;
 import me.youhavetrouble.preventstabby.config.ConfigCache;
+import me.youhavetrouble.preventstabby.hooks.PlacoholderApiHook;
 import me.youhavetrouble.preventstabby.hooks.WorldGuardHook;
 import me.youhavetrouble.preventstabby.players.PlayerManager;
 import me.youhavetrouble.preventstabby.players.SmartCache;
@@ -25,6 +26,7 @@ public final class PreventStabby extends JavaPlugin {
     private PlayerManager playerManager;
     private DatabaseSQLite sqLite;
     private SmartCache smartCache;
+    private static boolean worldGuardHook;
 
     @Override
     public void onEnable() {
@@ -45,7 +47,7 @@ public final class PreventStabby extends JavaPlugin {
         smartCache.runSmartCache();
 
         // Register listeners
-        Reflections reflections = new Reflections(new String[]{"me.youhavetrouble.preventstabby"});
+        Reflections reflections = new Reflections((Object[]) new String[]{"me.youhavetrouble.preventstabby"});
         Set<Class<?>> listenerClasses = reflections.getTypesAnnotatedWith(PreventStabbyListener.class);
         listenerClasses.forEach((listener)-> {
             try {
@@ -71,9 +73,20 @@ public final class PreventStabby extends JavaPlugin {
 
         try {
             WorldGuardHook.init();
-        } catch (NoClassDefFoundError ignored) {}
+            worldGuardHook = true;
+        } catch (NoClassDefFoundError e) {
+            worldGuardHook = false;
+        }
 
-        Metrics metrics = new Metrics(this, 10597);
+        if (getServer().getPluginManager().getPlugin("PlaceholderAPI") != null) {
+            new PlacoholderApiHook(this).register();
+        }
+
+        Metrics metrics = new Metrics(this, 14074);
+    }
+
+    public static boolean worldGuardHookEnabled() {
+        return worldGuardHook;
     }
 
     public void reloadPluginConfig() {

src/main/java/me/youhavetrouble/preventstabby/api/PreventStabbyAPI.java

@@ -65,6 +65,26 @@ public class PreventStabbyAPI {
         return PreventStabby.getPlugin().getPlayerManager().canDamage(attacker.getUniqueId(), victim.getUniqueId(), sendDenyMessage);
     }
 
+    /**
+     * Checks if player can be damaged by another. Providing UUID of entity other than player may result in exceptions
+     * @param attackerUuid Attacker's UUID
+     * @param victimUuid Victim's UUID
+     * @return True if victim can be attacked by attacker, false if not
+     */
+    public static boolean canDamage(UUID attackerUuid, UUID victimUuid) {
+        return  PreventStabby.getPlugin().getPlayerManager().canDamage(attackerUuid, victimUuid, false);
+    }
+
+    /**
+     * Checks if player can be damaged by another.
+     * @param attacker Attacker
+     * @param victim Victim
+     * @return True if victim can be attacked by attacker, false if not
+     */
+    public static boolean canDamage(Player attacker, Player victim) {
+        return PreventStabby.getPlugin().getPlayerManager().canDamage(attacker.getUniqueId(), victim.getUniqueId(), false);
+    }
+
     /**
      * Checks if player has login protection.
      * @param uuid UUID of player to check

src/main/java/me/youhavetrouble/preventstabby/commands/HelpCommand.java

@@ -11,9 +11,7 @@ public class HelpCommand {
 
     public static void help(CommandSender sender, String[] args) {
         Bukkit.getScheduler().runTaskAsynchronously(PreventStabby.getPlugin(), () -> {
-
             List<String> helpPage = new ArrayList<>();
-
             helpPage.add(PluginMessages.parseMessage("&b&m             &bPreventStabby Help&b&m             "));
             helpPage.add(PluginMessages.parseMessage("&9/pvp &b&lhelp &f- shows this message"));
             if (sender.hasPermission("preventstabby.command.toggle")) {
@@ -22,7 +20,6 @@ public class HelpCommand {
             }
             String[] helpReady = helpPage.toArray(new String[0]);
             sender.sendMessage(helpReady);
-
         });
     }
 

src/main/java/me/youhavetrouble/preventstabby/commands/PvpToggleCommand.java

@@ -11,9 +11,7 @@ import org.bukkit.entity.Player;
 public class PvpToggleCommand {
 
     public static void toggle(CommandSender sender, String[] args) {
-
         Bukkit.getScheduler().runTaskAsynchronously(PreventStabby.getPlugin(), () -> {
-
             if (!sender.hasPermission("preventstabby.command.toggle")) {
                 String message = ChatColor.translateAlternateColorCodes('&', PreventStabby.getPlugin().getConfigCache().getNo_permission());
                 sender.sendMessage(message);
@@ -47,7 +45,6 @@ public class PvpToggleCommand {
                     sender.sendMessage(message);
                     return;
                 }
-
                 if (sender instanceof Player) {
                     Player player = (Player) sender;
                     if (CombatTimer.isInCombat(player.getUniqueId())) {

src/main/java/me/youhavetrouble/preventstabby/commands/ReloadCommand.java

@@ -8,7 +8,6 @@ import org.bukkit.command.CommandSender;
 public class ReloadCommand {
 
     public static void reload(CommandSender sender) {
-
         Bukkit.getScheduler().runTaskAsynchronously(PreventStabby.getPlugin(), () -> {
             if (!sender.hasPermission("preventstabby.command.reload")) {
                 String message = ChatColor.translateAlternateColorCodes('&', PreventStabby.getPlugin().getConfigCache().getNo_permission());
@@ -17,7 +16,6 @@ public class ReloadCommand {
             }
             PreventStabby.getPlugin().reloadPluginConfig(sender);
         });
-
     }
 
 }

src/main/java/me/youhavetrouble/preventstabby/config/ConfigCache.java

@@ -20,7 +20,8 @@ public class ConfigCache {
     @Getter private final String pvp_enabled, pvp_disabled, cannot_attack_victim, cannot_attack_attacker,
             cannot_attack_pets_victim, cannot_attack_pets_attacker, no_permission, no_such_command, pvp_enabled_other,
             pvp_disabled_other, punish_for_combat_logout_message, entering_combat, leaving_combat,
-            cant_do_that_during_combat, cannot_attack_mounts_attacker, cannot_attack_mounts_victim;
+            cant_do_that_during_combat, cannot_attack_mounts_attacker, cannot_attack_mounts_victim,
+            placeholder_combat_time, placeholder_not_in_combat;
     @Getter private final double lava_and_fire_stopper_radius;
     @Getter private final long cache_time, combat_time, login_protection_time, teleport_protection_time;
     @Getter private final Set<String> combatBlockedCommands = new HashSet<>();
@@ -82,12 +83,14 @@ public class ConfigCache {
                 addDefault("messages.entering_combat", "&cEntering combat");
                 addDefault("messages.leaving_combat", "&cLeaving combat");
                 addDefault("messages.cant_do_that_during_combat", "&cYou can't do that while in combat!");
+                addDefault("placeholder.placeholder_combat_time", "Combat time: %time%");
+                addDefault("placeholder.not_in_combat", "Not in combat");
             }
         };
 
-        configFile.setDescription("PvP toggle that CARES about your pets!");
+        configFile.setDescription("Prevent people from getting stabbed!");
-        configFile.addLink("Spigot", "https://www.spigotmc.org/resources/togglepvp.89376/");
+        configFile.addLink("Spigot", "https://www.spigotmc.org/resources/89376/");
-        configFile.addLink("Source", "https://github.com/YouHaveTrouble/TogglePvP");
+        configFile.addLink("Source", "https://github.com/YouHaveTrouble/PreventStabby");
 
         configFile.load();
         FileConfiguration config = configFile.getConfig();
@@ -112,7 +115,7 @@ public class ConfigCache {
         if (block_commands_in_combat) {
             this.combatBlockedCommands.addAll(config.getStringList("settings.block_in_combat.block_commands.commands"));
         }
-        this.block_teleports_in_combat = config.getBoolean("settings.block_in_combat.block_teleports", true);
+        this.block_teleports_in_combat = config.getBoolean("settings.block_in_combat.block_teleports", false);
 
         this.cache_time = config.getLong("settings.cache_time", 30L);
 
@@ -136,7 +139,8 @@ public class ConfigCache {
         this.leaving_combat = config.getString("messages.leaving_combat", "&cLeaving combat");
         this.cant_do_that_during_combat = config.getString("messages.cant_do_that_during_combat", "&cYou can't do that while in combat!");
 
-
+        this.placeholder_combat_time = config.getString("placeholder.placeholder_combat_time", "Combat time: %time%");
+        this.placeholder_not_in_combat = config.getString("placeholder.not_in_combat", "Not in combat");
     }
 
 

src/main/java/me/youhavetrouble/preventstabby/hooks/PlacoholderApiHook.java

@@ -0,0 +1,56 @@
+package me.youhavetrouble.preventstabby.hooks;
+
+import me.clip.placeholderapi.expansion.PlaceholderExpansion;
+import me.youhavetrouble.preventstabby.PreventStabby;
+import me.youhavetrouble.preventstabby.util.PluginMessages;
+import org.bukkit.OfflinePlayer;
+import org.jetbrains.annotations.NotNull;
+
+import java.time.Instant;
+import java.util.UUID;
+
+public class PlacoholderApiHook extends PlaceholderExpansion {
+
+    private final PreventStabby plugin;
+
+    public PlacoholderApiHook(PreventStabby preventStabby) {
+        plugin = preventStabby;
+    }
+
+    @Override
+    public @NotNull String getIdentifier() {
+        return "preventstabby";
+    }
+
+    @Override
+    public @NotNull String getAuthor() {
+        return plugin.getDescription().getAuthors().get(0);
+    }
+
+    @Override
+    public @NotNull String getVersion() {
+        return plugin.getDescription().getVersion();
+    }
+
+    @Override
+    public String onRequest(OfflinePlayer player, String params) {
+        if (params.equalsIgnoreCase("combat_time")) {
+            return getCombatTimePlaceholder(player.getUniqueId());
+        }
+        if (params.equalsIgnoreCase("in_combat")) {
+            return String.valueOf(plugin.getPlayerManager().getPlayer(player.getUniqueId()).isInCombat());
+        }
+        return null;
+    }
+
+    private String getCombatTimePlaceholder(UUID uuid) {
+        long seconds = plugin.getPlayerManager().getPlayer(uuid).getCombattime() - Instant.now().getEpochSecond();
+        if (seconds > 0) {
+            String msg = plugin.getConfigCache().getPlaceholder_combat_time();
+            msg = msg.replaceAll("%time%", String.valueOf(seconds));
+            return PluginMessages.parseMessage(msg);
+        }
+        return PluginMessages.parseMessage(plugin.getConfigCache().getPlaceholder_not_in_combat());
+    }
+
+}

src/main/java/me/youhavetrouble/preventstabby/hooks/WorldGuardHook.java

@@ -18,27 +18,23 @@ import org.bukkit.plugin.Plugin;
 
 public class WorldGuardHook {
 
-    private static WorldGuardPlugin worldGuardPlugin;
     private static FlagRegistry flagRegistry;
     public static StateFlag FORCE_PVP_FLAG;
 
-
     public static void init() {
         PreventStabby plugin = PreventStabby.getPlugin();
         try {
-            Class.forName("com.sk89q.worldguard.protection.flags.registry.FlagConflictException");
+            Class.forName("com.sk89q.worldguard.protection.flags.registry.FlagRegistry");
-            worldGuardPlugin = WorldGuardPlugin.inst();
+            WorldGuardPlugin worldGuardPlugin = WorldGuardPlugin.inst();
             if (WorldGuard.getInstance() == null || worldGuardPlugin == null) return;
             plugin.getLogger().info("Hooking into WorldGuard");
             flagRegistry = WorldGuard.getInstance().getFlagRegistry();
             createForcePvpFlag(plugin);
-        } catch (NoClassDefFoundError | ClassNotFoundException e) {
+        } catch (NoClassDefFoundError | ClassNotFoundException ignored) {
-            return;
         }
     }
 
     private static void createForcePvpFlag(Plugin plugin) {
-        if (!isHooked()) return;
         if (flagRegistry == null) return;
         String flagName = "preventstabby-force-pvp";
         try {
@@ -56,7 +52,6 @@ public class WorldGuardHook {
     }
 
     public static boolean isPlayerForcedToPvp(Player player) {
-        if (!isHooked()) return false;
         RegionContainer container = WorldGuard.getInstance().getPlatform().getRegionContainer();
         RegionQuery query = container.createQuery();
         org.bukkit.Location loc = player.getLocation();
@@ -65,10 +60,4 @@ public class WorldGuardHook {
         return set.testState(localPlayer, FORCE_PVP_FLAG);
     }
 
-    public static boolean isHooked() {
-        return worldGuardPlugin != null;
-    }
-
-
-
 }

src/main/java/me/youhavetrouble/preventstabby/listeners/mount/MountHitByExplosionListener.java

@@ -15,7 +15,7 @@ import java.util.UUID;
 public class MountHitByExplosionListener implements Listener {
 
     @EventHandler(priority = EventPriority.HIGHEST, ignoreCancelled = true)
-    public void onPlayerAttackMount(org.bukkit.event.entity.EntityDamageByEntityEvent event) {
+    public void onMountHitByExplosion(org.bukkit.event.entity.EntityDamageByEntityEvent event) {
         if (!(event.getDamager() instanceof Player) || event.getEntity().getPassengers().isEmpty()) return;
         if (!event.getCause().equals(EntityDamageEvent.DamageCause.ENTITY_EXPLOSION)) return;
         UUID damager = event.getDamager().getUniqueId();

src/main/java/me/youhavetrouble/preventstabby/listeners/mount/MountHitByFireworkListener.java

@@ -16,7 +16,7 @@ import java.util.UUID;
 public class MountHitByFireworkListener implements Listener {
 
     @EventHandler(priority = EventPriority.HIGHEST, ignoreCancelled = true)
-    public void onPlayerAttackMount(org.bukkit.event.entity.EntityDamageByEntityEvent event) {
+    public void onMountHitByFireWork(org.bukkit.event.entity.EntityDamageByEntityEvent event) {
         if (!(event.getDamager() instanceof Firework) || event.getEntity().getPassengers().isEmpty()) return;
         if (!event.getCause().equals(EntityDamageEvent.DamageCause.ENTITY_EXPLOSION)) return;
         Firework firework = (Firework) event.getDamager();

src/main/java/me/youhavetrouble/preventstabby/listeners/mount/PlayerHitMountWithProjectileListener.java

@@ -15,10 +15,10 @@ import java.util.UUID;
 public class PlayerHitMountWithProjectileListener implements Listener {
 
     @EventHandler(priority = EventPriority.HIGHEST, ignoreCancelled = true)
-    public void onPlayerAttackMount(org.bukkit.event.entity.EntityDamageByEntityEvent event) {
+    public void onPlayerHitMountWithProjectile(org.bukkit.event.entity.EntityDamageByEntityEvent event) {
-        if (!(event.getDamager() instanceof Player) || event.getEntity().getPassengers().isEmpty()) return;
+        if (!(event.getDamager() instanceof Projectile)) return;
         Projectile projectile = (Projectile) event.getDamager();
-        if (!(projectile.getShooter() instanceof Player)) return;
+        if (!(projectile.getShooter() instanceof Player) || event.getEntity().getPassengers().isEmpty()) return;
         Entity entity = event.getEntity();
         UUID damager = event.getDamager().getUniqueId();
         if (Util.processMountAttack(damager, entity))

src/main/java/me/youhavetrouble/preventstabby/listeners/pets/PetTargettingPlayerListener.java

@@ -20,9 +20,9 @@ public class PetTargettingPlayerListener implements Listener {
     public void onPetTargetPlayer(org.bukkit.event.entity.EntityTargetEvent event) {
         if (!(event.getEntity() instanceof Tameable)) return;
         Tameable entity = (Tameable) event.getEntity();
-        if (entity.getOwner() == null) return;
+        if (!(entity.getOwner() instanceof Player)) return;
+        if (!(event.getTarget() instanceof Player)) return;
 
-        if (event.getTarget() instanceof Player) {
         UUID damager = entity.getOwner().getUniqueId();
         UUID victim = event.getTarget().getUniqueId();
 
@@ -30,6 +30,6 @@ public class PetTargettingPlayerListener implements Listener {
             CombatTimer.refreshPlayersCombatTime(damager, victim);
         else
             event.setCancelled(true);
-        }
+
     }
 }

src/main/java/me/youhavetrouble/preventstabby/listeners/toggles/CombatCommandListener.java

@@ -17,6 +17,9 @@ public class CombatCommandListener implements Listener {
         if (!PreventStabby.getPlugin().getConfigCache().isBlock_commands_in_combat())
             return;
 
+        if (event.getPlayer().hasPermission("toglepvp.combatcommandblock.bypass"))
+            return;
+
         PlayerManager playerManager = PreventStabby.getPlugin().getPlayerManager();
 
         if (!playerManager.getPlayer(event.getPlayer().getUniqueId()).isInCombat())
@@ -27,9 +30,6 @@ public class CombatCommandListener implements Listener {
         if (!PreventStabby.getPlugin().getConfigCache().getCombatBlockedCommands().contains(command))
             return;
 
-        if (event.getPlayer().hasPermission("toglepvp.combatcommandblock.bypass"))
-            return;
-
         event.setCancelled(true);
         PluginMessages.sendMessage(event.getPlayer(), PreventStabby.getPlugin().getConfigCache().getCant_do_that_during_combat());
 

src/main/java/me/youhavetrouble/preventstabby/players/PlayerManager.java

@@ -12,14 +12,13 @@ import org.bukkit.entity.Player;
 import org.bukkit.scheduler.BukkitTask;
 
 import java.time.Instant;
-import java.util.HashMap;
-import java.util.Iterator;
 import java.util.UUID;
+import java.util.concurrent.ConcurrentHashMap;
 
 public class PlayerManager {
 
     @Getter
-    HashMap<UUID, PlayerData> playerList = new HashMap<>();
+    ConcurrentHashMap<UUID, PlayerData> playerList = new ConcurrentHashMap<>();
 
     public final BukkitTask combatTrackerTask;
 
@@ -30,9 +29,7 @@ public class PlayerManager {
         }
 
         combatTrackerTask = Bukkit.getScheduler().runTaskTimerAsynchronously(PreventStabby.getPlugin(), () -> {
-            Iterator<PlayerData> iterator = playerList.values().iterator();
+            for (PlayerData playerData : playerList.values()) {
-            while (iterator.hasNext()) {
-                PlayerData playerData = iterator.next();
                 UUID uuid = playerData.getPlayerUuid();
                 if (!CombatTimer.isInCombat(uuid)) {
                     if (playerData.getLastCombatCheck()) {
@@ -112,24 +109,27 @@ public class PlayerManager {
     public boolean canDamage(UUID attacker, UUID victim, boolean sendDenyMessage, boolean checkVictimSpawnProtection) {
 
         if (hasLoginProtection(attacker) || hasTeleportProtection(attacker)) return false;
-
         if (checkVictimSpawnProtection && hasLoginProtection(victim)) return false;
-
         if (checkVictimSpawnProtection && hasTeleportProtection(victim)) return false;
 
         SmartCache smartCache = PreventStabby.getPlugin().getSmartCache();
 
+        if (!smartCache.getPlayerData(attacker).isPvpEnabled()) {
             Player attackerPlayer = Bukkit.getPlayer(attacker);
-        Player victimPlayer = Bukkit.getPlayer(victim);
+            if (PreventStabby.worldGuardHookEnabled() && attackerPlayer != null && WorldGuardHook.isPlayerForcedToPvp(attackerPlayer))
+                return true;
 
-        if (!smartCache.getPlayerData(attacker).isPvpEnabled() && (attackerPlayer != null && !isInForcedPvpRegion(attackerPlayer))) {
             if (sendDenyMessage) {
                 ConfigCache config = PreventStabby.getPlugin().getConfigCache();
                 PluginMessages.sendActionBar(attacker, config.getCannot_attack_attacker());
             }
             return false;
         }
-        if (!smartCache.getPlayerData(victim).isPvpEnabled() && (victimPlayer != null && !isInForcedPvpRegion(victimPlayer))) {
+        if (!smartCache.getPlayerData(victim).isPvpEnabled()) {
+            Player victimPlayer = Bukkit.getPlayer(victim);
+            if (PreventStabby.worldGuardHookEnabled() && victimPlayer != null && WorldGuardHook.isPlayerForcedToPvp(victimPlayer))
+                return true;
+
             if (sendDenyMessage) {
                 ConfigCache config = PreventStabby.getPlugin().getConfigCache();
                 PluginMessages.sendActionBar(attacker, config.getCannot_attack_victim());
@@ -157,9 +157,4 @@ public class PlayerManager {
         return Instant.now().getEpochSecond() < smartCache.getPlayerData(uuid).getTeleportTimestamp();
     }
 
-    public boolean isInForcedPvpRegion(Player player) {
-        if (!WorldGuardHook.isHooked()) return false;
-        return WorldGuardHook.isPlayerForcedToPvp(player);
-    }
-
 }

src/main/java/me/youhavetrouble/preventstabby/util/PluginMessages.java

@@ -1,5 +1,7 @@
 package me.youhavetrouble.preventstabby.util;
 
+import me.clip.placeholderapi.PlaceholderAPI;
+import me.youhavetrouble.preventstabby.PreventStabby;
 import net.md_5.bungee.api.ChatMessageType;
 import net.md_5.bungee.api.chat.BaseComponent;
 import net.md_5.bungee.api.chat.TextComponent;
@@ -9,30 +11,33 @@ import org.bukkit.entity.Player;
 
 import java.util.UUID;
 
-
 public class PluginMessages {
 
     public static String parseMessage(String message) {
-        //TODO PAPI support
         return ChatColor.translateAlternateColorCodes('&', message);
     }
 
     public static void sendMessage(Player player, String message) {
-        String parsedMessage = ChatColor.translateAlternateColorCodes('&', message);
+        if (PreventStabby.getPlugin().getServer().getPluginManager().getPlugin("PlaceholderAPI") != null) {
-        player.sendMessage(parsedMessage);
+            message = PlaceholderAPI.setPlaceholders(player, message);
+        }
+        message = ChatColor.translateAlternateColorCodes('&', message);
+        player.sendMessage(message);
     }
 
     public static void sendActionBar(Player player, String message) {
         // TODO use adventure
+        if (PreventStabby.getPlugin().getServer().getPluginManager().getPlugin("PlaceholderAPI") != null) {
+            message = PlaceholderAPI.setPlaceholders(player, message);
+        }
         BaseComponent[] component = TextComponent.fromLegacyText(parseMessage(message));
         player.spigot().sendMessage(ChatMessageType.ACTION_BAR, component);
     }
 
     public static void sendActionBar(UUID uuid, String message) {
-        try {
         Player player = Bukkit.getPlayer(uuid);
+        if (player == null) return;
         sendActionBar(player, message);
-        } catch (NullPointerException ignored) {}
     }
 
     public static String parsePlayerName(Player player, String message) {
@@ -42,6 +47,9 @@ public class PluginMessages {
 
     public static void broadcastMessage(Player player, String message) {
         message = parsePlayerName(player, message);
+        if (PreventStabby.getPlugin().getServer().getPluginManager().getPlugin("PlaceholderAPI") != null) {
+            message = PlaceholderAPI.setPlaceholders(player, message);
+        }
         message = parseMessage(message);
         BaseComponent[] component = TextComponent.fromLegacyText(parseMessage(message));
         Bukkit.spigot().broadcast(component);

src/main/java/me/youhavetrouble/preventstabby/util/Util.java

@@ -38,11 +38,6 @@ public class Util {
 
         ConfigCache config = PreventStabby.getPlugin().getConfigCache();
 
-        if (!PreventStabby.getPlugin().getPlayerManager().getPlayerPvPState(attacker)) {
-            PluginMessages.sendActionBar(attacker, config.getCannot_attack_mounts_attacker());
-            return true;
-        }
-
         Set<UUID> playerPassengersWithPvpEnabled = new HashSet<>();
 
         boolean hasPlayerPassengers = false;
@@ -54,7 +49,14 @@ public class Util {
                 playerPassengersWithPvpEnabled.add(player.getUniqueId());
         }
 
-        if (hasPlayerPassengers && playerPassengersWithPvpEnabled.isEmpty()) {
+        if (!hasPlayerPassengers) return false;
+
+        if (!PreventStabby.getPlugin().getPlayerManager().getPlayerPvPState(attacker)) {
+            PluginMessages.sendActionBar(attacker, config.getCannot_attack_mounts_attacker());
+            return true;
+        }
+
+        if (playerPassengersWithPvpEnabled.isEmpty()) {
             PluginMessages.sendActionBar(attacker, config.getCannot_attack_mounts_victim());
             return true;
         }

src/main/resources/plugin.yml

@@ -6,27 +6,28 @@ api-version: 1.13
 description: Stop people from getting stabbed!
 soft-depend:
   - WorldGuard
+  - PlaceholderAPI
 commands:
   preventstabby:
     permission: preventstabby.command
     aliases:
       - pvp
 permissions:
-  toglepvp.combatcommandblock.bypass:
+  preventstabby.combatcommandblock.bypass:
     default: op
     description: Allows to bypass combat command blocker
-  toglepvp.combatteleportblock.bypass:
+  preventstabby.combatteleportblock.bypass:
     default: op
     description: Allows to bypass combat teleport blocker
-  togglepvp.command:
+  preventstabby.command:
     default: true
     description: Allows usage of /pvp command
-  togglepvp.command.toggle:
+  preventstabby.command.toggle:
     default: true
     description: Allows usage of /pvp <toggle/enable/disable> command
-  togglepvp.command.toggle.others:
+  preventstabby.command.toggle.others:
     default: op
     description: Allows usage of /pvp <toggle/enable/disable> <player> command
-  togglepvp.command.reload:
+  preventstabby.command.reload:
     default: op
     description: Allows usage of /pvp reload command