Optimizing GUI

SchematicSystem_Core/src/de/steamwar/schematicsystem/commands/GUI.java

@@ -68,11 +68,7 @@ public class GUI {
         }
 
         inv.setItem(9, SWItem.getMaterial("LEASH"), "§eZurück", clickType -> {
-            if(back != null) {
-                back.reOpen();
-            } else {
-                list(player);
-            }
+            back.reOpen();
         });
 
         if(node.getOwner() == user.getId()){
@@ -119,10 +115,9 @@ public class GUI {
                 });
                 selector.open();
             });
-            Material finalMat = mat;
             inv.setItem(16, Material.NAME_TAG, "§eUmbenennen", clickType -> {
                 SWAnvilInv anvilInv = new SWAnvilInv(player, node.getName() + " umbenennen", node.getName());
-                anvilInv.setItem(finalMat);
+                anvilInv.setItem(mat);
                 anvilInv.setCallback(s -> {
                     SafeSchematicNode.Result result = SafeSchematicNode.setName(user, node, s);
                     if(result.isSuccessful()) {