Added MultiPaper support

pom.xml

@@ -113,6 +113,31 @@
           <skipTests>${skipTests}</skipTests>
         </configuration>
       </plugin>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-enforcer-plugin</artifactId>
+        <version>3.6.1</version>
+        <executions>
+          <execution>
+            <phase>validate</phase>
+            <goals><goal>enforce</goal></goals>
+            <configuration>
+              <rules>
+                <requireNoRepositories>
+                  <allowedRepositories>
+                    <allowedRepository>central</allowedRepository>
+                    <allowedRepository>enginehub-repo</allowedRepository>
+                    <allowedRepository>spigot-repo</allowedRepository>
+                    <allowedRepository>paper-repo</allowedRepository>
+                    <allowedRepository>codemc-repo</allowedRepository>
+                    <allowedRepository>jitpack.io</allowedRepository>
+                  </allowedRepositories>
+                </requireNoRepositories>
+              </rules>
+            </configuration>
+          </execution>
+        </executions>
+      </plugin>
     </plugins>
   </build>
   <profiles>

src/main/java/net/coreprotect/config/ConfigHandler.java

@@ -40,6 +40,11 @@ import net.coreprotect.utility.VersionUtils;
 import oshi.hardware.CentralProcessor;
 
 public class ConfigHandler extends Queue {
+
+    public enum CacheType {
+        MATERIALS, BLOCKDATA, ART, ENTITIES, WORLDS
+    }
+
     public static int SERVER_VERSION = 0;
     public static final int EDITION_VERSION = 2;
     public static final String EDITION_BRANCH = VersionUtils.getBranch();
@@ -48,6 +53,7 @@ public class ConfigHandler extends Queue {
     public static final String JAVA_VERSION = "11.0";
     public static final String MINECRAFT_VERSION = "1.16";
     public static final String LATEST_VERSION = "1.21.8";
+    public static final String PATCH_VERSION = "23.0";
     public static String path = "plugins/CoreProtect/";
     public static String sqlite = "database.db";
     public static String host = "127.0.0.1";
@@ -268,7 +274,7 @@ public class ConfigHandler extends Queue {
         Database.createDatabaseTables(ConfigHandler.prefix, false, null, Config.getGlobal().MYSQL, false);
     }
 
-    public static void loadTypes(Statement statement) {
+    public static void loadMaterials(Statement statement) {
         try {
             String query = "SELECT id,material FROM " + ConfigHandler.prefix + "material_map";
             ResultSet rs = statement.executeQuery(query);
@@ -286,9 +292,16 @@ public class ConfigHandler extends Queue {
                 }
             }
             rs.close();
+        }
+        catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
 
-            query = "SELECT id,data FROM " + ConfigHandler.prefix + "blockdata_map";
+    public static void loadBlockdata(Statement statement) {
-            rs = statement.executeQuery(query);
+        try {
+            String query = "SELECT id,data FROM " + ConfigHandler.prefix + "blockdata_map";
+            ResultSet rs = statement.executeQuery(query);
             ConfigHandler.blockdata.clear();
             ConfigHandler.blockdataReversed.clear();
             blockdataId = 0;
@@ -303,9 +316,16 @@ public class ConfigHandler extends Queue {
                 }
             }
             rs.close();
+        }
+        catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
 
-            query = "SELECT id,art FROM " + ConfigHandler.prefix + "art_map";
+    public static void loadArt(Statement statement) {
-            rs = statement.executeQuery(query);
+        try {
+            String query = "SELECT id,art FROM " + ConfigHandler.prefix + "art_map";
+            ResultSet rs = statement.executeQuery(query);
             ConfigHandler.art.clear();
             ConfigHandler.artReversed.clear();
             artId = 0;
@@ -320,9 +340,16 @@ public class ConfigHandler extends Queue {
                 }
             }
             rs.close();
+        }
+        catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
 
-            query = "SELECT id,entity FROM " + ConfigHandler.prefix + "entity_map";
+    public static void loadEntities(Statement statement) {
-            rs = statement.executeQuery(query);
+        try {
+            String query = "SELECT id,entity FROM " + ConfigHandler.prefix + "entity_map";
+            ResultSet rs = statement.executeQuery(query);
             ConfigHandler.entities.clear();
             ConfigHandler.entitiesReversed.clear();
             entityId = 0;
@@ -343,6 +370,67 @@ public class ConfigHandler extends Queue {
         }
     }
 
+    public static void loadTypes(Statement statement) {
+        loadMaterials(statement);
+        loadBlockdata(statement);
+        loadArt(statement);
+        loadEntities(statement);
+    }
+
+    /**
+     * Unified method to reload cache from database when DATABASE_LOCK is false (multi-server setup)
+     * 
+     * @param type
+     *            The type of cache to reload
+     * @param name
+     *            The name to look up after reload
+     * @return The ID if found after reload, or -1 if not found
+     */
+    public static int reloadAndGetId(CacheType type, String name) {
+        // Only reload if DATABASE_LOCK is false (multi-server setup)
+        if (Config.getGlobal().DATABASE_LOCK) {
+            return -1;
+        }
+
+        try (Connection connection = Database.getConnection(true)) {
+            if (connection != null) {
+                Statement statement = connection.createStatement();
+
+                // Reload appropriate cache based on type
+                switch (type) {
+                    case MATERIALS:
+                        loadMaterials(statement);
+                        statement.close();
+                        return materials.getOrDefault(name, -1);
+                    case BLOCKDATA:
+                        loadBlockdata(statement);
+                        statement.close();
+                        return blockdata.getOrDefault(name, -1);
+                    case ART:
+                        loadArt(statement);
+                        statement.close();
+                        return art.getOrDefault(name, -1);
+                    case ENTITIES:
+                        loadEntities(statement);
+                        statement.close();
+                        return entities.getOrDefault(name, -1);
+                    case WORLDS:
+                        loadWorlds(statement);
+                        statement.close();
+                        return worlds.getOrDefault(name, -1);
+                    default:
+                        statement.close();
+                        return -1;
+                }
+            }
+        }
+        catch (Exception e) {
+            e.printStackTrace();
+        }
+
+        return -1;
+    }
+
     public static void loadWorlds(Statement statement) {
         try {
             String query = "SELECT id,world FROM " + ConfigHandler.prefix + "world";

src/main/java/net/coreprotect/services/VersionCheckService.java

@@ -44,6 +44,13 @@ public class VersionCheckService {
                 return false;
             }
 
+            // Patch version validation
+            if (VersionUtils.newVersion(ConfigHandler.PATCH_VERSION, VersionUtils.getPluginVersion()) && !ConfigHandler.EDITION_BRANCH.contains("-dev")) {
+                Chat.console(Phrase.build(Phrase.VERSION_INCOMPATIBLE, "CoreProtect", "v" + VersionUtils.getPluginVersion()));
+                Chat.sendConsoleMessage(Color.GREY + "[CoreProtect] " + Phrase.build(Phrase.INVALID_BRANCH_2));
+                return false;
+            }
+
             // Branch validation
             if (ConfigHandler.EDITION_BRANCH.length() == 0) {
                 Chat.sendConsoleMessage(Color.RED + "[CoreProtect] " + Phrase.build(Phrase.INVALID_BRANCH_1));

src/main/java/net/coreprotect/utility/EntityUtils.java

@@ -33,6 +33,12 @@ public class EntityUtils extends Queue {
             id = ConfigHandler.entities.get(name);
         }
         else if (internal) {
+            // Check if another server has already added this entity (multi-server setup)
+            id = ConfigHandler.reloadAndGetId(ConfigHandler.CacheType.ENTITIES, name);
+            if (id != -1) {
+                return id;
+            }
+
             int entityID = ConfigHandler.entityId + 1;
             ConfigHandler.entities.put(name, entityID);
             ConfigHandler.entitiesReversed.put(entityID, name);

src/main/java/net/coreprotect/utility/MaterialUtils.java

@@ -35,6 +35,12 @@ public class MaterialUtils extends Queue {
             id = ConfigHandler.materials.get(name);
         }
         else if (internal) {
+            // Check if another server has already added this material (multi-server setup)
+            id = ConfigHandler.reloadAndGetId(ConfigHandler.CacheType.MATERIALS, name);
+            if (id != -1) {
+                return id;
+            }
+
             int mid = ConfigHandler.materialId + 1;
             ConfigHandler.materials.put(name, mid);
             ConfigHandler.materialsReversed.put(mid, name);
@@ -54,6 +60,12 @@ public class MaterialUtils extends Queue {
             id = ConfigHandler.blockdata.get(data);
         }
         else if (internal) {
+            // Check if another server has already added this blockdata (multi-server setup)
+            id = ConfigHandler.reloadAndGetId(ConfigHandler.CacheType.BLOCKDATA, data);
+            if (id != -1) {
+                return id;
+            }
+
             int bid = ConfigHandler.blockdataId + 1;
             ConfigHandler.blockdata.put(data, bid);
             ConfigHandler.blockdataReversed.put(bid, data);
@@ -135,6 +147,12 @@ public class MaterialUtils extends Queue {
             id = ConfigHandler.art.get(name);
         }
         else if (internal) {
+            // Check if another server has already added this art (multi-server setup)
+            id = ConfigHandler.reloadAndGetId(ConfigHandler.CacheType.ART, name);
+            if (id != -1) {
+                return id;
+            }
+
             int artID = ConfigHandler.artId + 1;
             ConfigHandler.art.put(name, artID);
             ConfigHandler.artReversed.put(artID, name);

src/main/java/net/coreprotect/utility/WorldUtils.java

@@ -16,6 +16,12 @@ public class WorldUtils extends Queue {
         int id = -1;
         try {
             if (ConfigHandler.worlds.get(name) == null) {
+                // Check if another server has already added this world (multi-server setup)
+                id = ConfigHandler.reloadAndGetId(ConfigHandler.CacheType.WORLDS, name);
+                if (id != -1) {
+                    return id;
+                }
+
                 int wid = ConfigHandler.worldId + 1;
                 ConfigHandler.worlds.put(name, wid);
                 ConfigHandler.worldsReversed.put(wid, name);