diff --git a/Minigames/src/main/java/au/com/mineauz/minigames/FloorDegenerator.java b/Minigames/src/main/java/au/com/mineauz/minigames/FloorDegenerator.java
index 7002e8a81..41b4ac869 100644
--- a/Minigames/src/main/java/au/com/mineauz/minigames/FloorDegenerator.java
+++ b/Minigames/src/main/java/au/com/mineauz/minigames/FloorDegenerator.java
@@ -22,8 +22,8 @@ public class FloorDegenerator {
     private final Location xSidePos2;
     private final Location zSideNeg2;
     private final Location zSidePos2;
-    private long timeDelay = 30;
-    private Minigame mgm = null;
+    private final Minigame mgm;
+    private long timeDelay;
     private int taskID = -1;
 
     private int radiusModifier = 0;
diff --git a/Minigames/src/main/java/au/com/mineauz/minigames/display/DisplayManager.java b/Minigames/src/main/java/au/com/mineauz/minigames/display/DisplayManager.java
index c906905c2..f2a260e33 100644
--- a/Minigames/src/main/java/au/com/mineauz/minigames/display/DisplayManager.java
+++ b/Minigames/src/main/java/au/com/mineauz/minigames/display/DisplayManager.java
@@ -11,6 +11,7 @@
 import org.bukkit.entity.Player;
 import org.bukkit.scheduler.BukkitTask;
 import org.bukkit.util.Vector;
+import org.jetbrains.annotations.NotNull;
 
 import java.util.IdentityHashMap;
 import java.util.Map;
@@ -126,7 +127,7 @@ protected void onHide(IDisplayObject object) {
         }
     }
 
-    protected void onRemove(IDisplayObject object) {
+    protected void onRemove(@NotNull IDisplayObject object) {
         if (object.isPlayerDisplay()) {
             playerDisplays.remove(object.getPlayer(), object);
         } else {
diff --git a/Minigames/src/main/java/au/com/mineauz/minigames/signs/CTFFlagSign.java b/Minigames/src/main/java/au/com/mineauz/minigames/signs/CTFFlagSign.java
index e88777cfb..78496f45e 100644
--- a/Minigames/src/main/java/au/com/mineauz/minigames/signs/CTFFlagSign.java
+++ b/Minigames/src/main/java/au/com/mineauz/minigames/signs/CTFFlagSign.java
@@ -69,7 +69,7 @@ public boolean signCreate(@NotNull SignChangeEvent event) {
         return true;
     }
 
-    // the error in this Java doc is known. We don't need access, we need dokumention.
+    // the error in this Java doc is known. We don't need access, we need documentation.
     /**
      * actual handling of taking the flag is in {@link CTFMechanic#takeFlag(PlayerInteractEvent)}
      */