Make code thread safe - 2.0.2

build.gradle

@@ -8,7 +8,7 @@ plugins {
 }
 
 group = 'com.clubobsidian'
-version = '2.0.1'
+version = '2.0.2'
 
 processResources {
 	from(sourceSets.main.resources) {

src/main/java/com/clubobsidian/foundry/permission/PermissionManager.java

@@ -2,11 +2,11 @@
 
 import java.util.ArrayList;
 import java.util.Collection;
-import java.util.HashMap;
 import java.util.Iterator;
 import java.util.Map;
 import java.util.Map.Entry;
 import java.util.UUID;
+import java.util.concurrent.ConcurrentHashMap;
 
 import org.bukkit.Bukkit;
 import org.bukkit.entity.Player;
@@ -24,19 +24,18 @@
 
 public final class PermissionManager implements Listener {
 
-	private Map<UUID, Map<String, PermissionNode>> userPermissionCache;
-	private PermissionPlugin plugin;
+	private final Map<UUID, Map<String, PermissionNode>> userPermissionCache = new ConcurrentHashMap<>();
+	private final PermissionPlugin plugin;
 
 	public PermissionManager() {
-		this.userPermissionCache = new HashMap<>();
 		this.plugin = this.findUpdater();
 	}
 
 	public boolean hasPermission(Player player, String permission) {
 		UUID uuid = player.getUniqueId();
 		Map<String, PermissionNode> nodes = this.userPermissionCache.get(uuid);
 		if(nodes == null) {
-			nodes = new HashMap<>();
+			nodes = new ConcurrentHashMap<>();
 			this.userPermissionCache.put(uuid, nodes);
 		}
 		PermissionNode node = nodes.get(permission);

src/main/java/com/clubobsidian/foundry/permission/PermissionNode.java

@@ -1,24 +1,26 @@
 package com.clubobsidian.foundry.permission;
 
+import java.util.concurrent.atomic.AtomicBoolean;
+
 public class PermissionNode {
 
 	private final String permission;
-	private boolean hasPermission;
+	private final AtomicBoolean hasPermission;
 
 	public PermissionNode(String permission, boolean hasPermission) {
 		this.permission = permission;
-		this.hasPermission = hasPermission;
+		this.hasPermission = new AtomicBoolean(hasPermission);
 	}
 
 	public String getPermission() {
 		return this.permission;
 	}
 
 	public boolean hasPermission() {
-		return this.hasPermission;
+		return this.hasPermission.get();
 	}
 
 	public void setHasPermission(boolean hasPermission) {
-		this.hasPermission = hasPermission;
+		this.hasPermission.set(hasPermission);
 	}
 }