diff --git a/src/main/java/com/onarandombox/MultiverseCore/utils/WorldManager.java b/src/main/java/com/onarandombox/MultiverseCore/utils/WorldManager.java index e967012b8..65a666804 100644 --- a/src/main/java/com/onarandombox/MultiverseCore/utils/WorldManager.java +++ b/src/main/java/com/onarandombox/MultiverseCore/utils/WorldManager.java @@ -17,13 +17,8 @@ import com.onarandombox.MultiverseCore.api.SafeTTeleporter; import com.onarandombox.MultiverseCore.api.WorldPurger; import com.onarandombox.MultiverseCore.event.MVWorldDeleteEvent; -import org.bukkit.Bukkit; -import org.bukkit.GameRule; -import org.bukkit.Location; -import org.bukkit.World; +import org.bukkit.*; import org.bukkit.World.Environment; -import org.bukkit.WorldCreator; -import org.bukkit.WorldType; import org.bukkit.configuration.ConfigurationSection; import org.bukkit.configuration.file.FileConfiguration; import org.bukkit.configuration.file.YamlConfiguration; @@ -37,6 +32,7 @@ import java.io.File; import java.io.FilenameFilter; import java.io.IOException; +import java.lang.reflect.Field; import java.lang.reflect.InvocationTargetException; import java.lang.reflect.Method; import java.util.ArrayList; @@ -1054,19 +1050,30 @@ public void run() { } private boolean safeToAddOrRemoveWorld(){ - Method isTickingWorlds; + Server server = Bukkit.getServer(); + Logging.finest("Using reflection to test for Paper build after PR #7653"); try { - isTickingWorlds = Bukkit.class.getMethod("isTickingWorlds"); - } catch (NoSuchMethodException e) { - // Paper fixes aren't active, so it is always considered safe to proceed + // basically doing ((CraftServer) Bukkit.getServer()).getServer().isIteratingOverLevels; + Method getConsole = server.getClass().getMethod("getServer"); + Object console = getConsole.invoke(server); + + Field isTickingWorlds = console.getClass().getField("isIteratingOverLevels"); + boolean isTicking = isTickingWorlds.getBoolean(console); + + Logging.finest("Paper fix active"); + return !isTicking; + } catch (NoSuchMethodException | InvocationTargetException | IllegalAccessException e) { + Logging.finest("%sUnexpected exception: %s", ChatColor.RED, e.getMessage()); + Logging.finest("Assuming Paper fix is inactive"); + // If the Paper fix actually is active it should become obvious when Paper complains + // about a world being loaded/unloaded while being ticked + // If that happens, this method needs to be fixed + return true; + } catch (NoSuchFieldException ignored) { + // Expected to fail when field isIteratingOverLevels doesn't exist + // Therefore, Paper fixes aren't active, so it is always considered safe to proceed + Logging.finest("Paper fix inactive"); return true; - } - // Paper fixes are active, so we need to and can check Bukkit.isTickingWorlds - try { - return !(boolean) isTickingWorlds.invoke(null); - } catch (InvocationTargetException | IllegalAccessException e) { - // Shouldn't happen, I know I'm using the method correctly - throw new RuntimeException(e); } } }