Fix TestCommand

SpigotCore_Main/src/de/steamwar/acommand/TestCommand.java

@@ -37,7 +37,7 @@ public class TestCommand extends SWCommand {
     }
 
     // One Help Command, the first Parameter should be some kind of CommandSender
-    // The second argument can only be a varAgrs string of what arguments was tried to map
+    // The second argument can only be a varAgrs string of what arguments were tried to map
     @Register(help = true)
     public void testHelp(Player player, String... args) {
         player.sendMessage("This is your help message");
@@ -66,7 +66,7 @@ public class TestCommand extends SWCommand {
                 .map(Material::name)
                 .map(String::toLowerCase)
                 .collect(Collectors.toList());
-        return new TypeMapper<>() {
+        return new TypeMapper<Material>() {
             @Override
             public Material map(String s) {
                 return Material.valueOf(s.toUpperCase());