Multi-threaded resource loading

src/main/java/emu/grasscutter/Grasscutter.java

@@ -1,8 +1,5 @@
 package emu.grasscutter;
 
-import static emu.grasscutter.config.Configuration.SERVER;
-import static emu.grasscutter.utils.Language.translate;
-
 import ch.qos.logback.classic.Level;
 import ch.qos.logback.classic.Logger;
 import emu.grasscutter.auth.AuthenticationSystem;
@@ -29,12 +26,6 @@ import emu.grasscutter.server.http.handlers.GenericHandler;
 import emu.grasscutter.server.http.handlers.LogHandler;
 import emu.grasscutter.tools.Tools;
 import emu.grasscutter.utils.*;
-import java.io.File;
-import java.io.FileWriter;
-import java.io.IOError;
-import java.io.IOException;
-import java.util.Calendar;
-import javax.annotation.Nullable;
 import lombok.Getter;
 import lombok.Setter;
 import org.jline.reader.EndOfFileException;
@@ -46,6 +37,16 @@ import org.jline.terminal.TerminalBuilder;
 import org.reflections.Reflections;
 import org.slf4j.LoggerFactory;
 
+import javax.annotation.Nullable;
+import java.io.File;
+import java.io.FileWriter;
+import java.io.IOError;
+import java.io.IOException;
+import java.util.Calendar;
+
+import static emu.grasscutter.config.Configuration.SERVER;
+import static emu.grasscutter.utils.Language.translate;
+
 public final class Grasscutter {
     public static final File configFile = new File("./config.json");
     public static final Reflections reflector = new Reflections("emu.grasscutter");
@@ -120,7 +121,7 @@ public final class Grasscutter {
         }
 
         // Initialize database.
-        DatabaseManager.initialize();
+        DatabaseManager.initializeAsync();
 
         // Initialize the default systems.
         authenticationSystem = new DefaultAuthentication();