Database loading fixes try 1

CHANGELOG.md

@@ -147,4 +147,5 @@ command classes yourself.\
 
 ## 1.7.1
 
-![](https://raw.githubusercontent.com/efekos/efekos/main/icons/symbol-plus.svg) Added icons to changelogs.
+![](https://raw.githubusercontent.com/efekos/efekos/main/icons/symbol-plus.svg) Added icons to changelogs.\
+![](https://raw.githubusercontent.com/efekos/efekos/main/icons/symbol-change.svg) Changed

src/main/java/me/efekos/simpler/config/ListDataManager.java

@@ -31,12 +31,13 @@
 import java.io.*;
 import java.security.InvalidParameterException;
 import java.util.ArrayList;
+import java.util.Collections;
 import java.util.List;
 import java.util.UUID;
 
 /**
  * A basic database class made using {@link Gson}. You can store a {@link List<T>} in this data. Use {@link #save()}
- * and {@link #load(Class)} to load your data.
+ * and {@link #load()} to load your data.
  * @param <T>
  *           Type of the data you want to store as a list. Be aware that using incompatible types
  *           in this type might cause errors. Just to let you know, there is a list of the classes
@@ -163,11 +164,10 @@ public void load(){
                 Reader reader = new FileReader(file);
 
 
-                T[] n = gson.fromJson(reader, new TypeToken<List<T>>(){}.getType());
+                TypeToken<List<T>> token = new TypeToken<>(){};
+                T[] n = gson.fromJson(reader, token.getType());
 
-                for (T t : n) {
-                    datas.add(t);
-                }
+                Collections.addAll(datas, n);
 
                 reader.close();
             } catch (Exception e){

src/main/java/me/efekos/simpler/config/MapDataManager.java

@@ -148,9 +148,7 @@ public void load(){
                 TypeToken<Map<K, V>> token = new TypeToken<>() {
                 };
 
-                Map<K,V> n = (Map<K, V>) gson.fromJson(reader,token.getRawType());
-
-                data = n;
+                data = gson.fromJson(reader,token.getType());
 
                 reader.close();
             } catch (Exception e){