chore: 移除了许多异常判断

事实上这些异常不大会发生，追求性能，无所畏惧

src/main/java/io/github/thebusybiscuit/slimefun4/api/events/AncientAltarCraftEvent.java

@@ -68,10 +68,6 @@ public ItemStack getItem() {
      *            being the {@link ItemStack} you want to change the item to.
      */
     public void setItem(ItemStack output) {
-        if (output == null || output.getType() == Material.AIR) {
-            throw new IllegalArgumentException("An Ancient Altar cannot drop 'null' items");
-        }
-
         this.output = output;
     }
 

src/main/java/io/github/thebusybiscuit/slimefun4/api/items/ItemSetting.java

@@ -28,12 +28,9 @@ public class ItemSetting<T> {
     /**
      * This creates a new {@link ItemSetting} with the given key and default value
      *
-     * @param item
-     *            The {@link SlimefunItem} this {@link ItemSetting} belongs to
-     * @param key
-     *            The key under which this setting will be stored (relative to the {@link SlimefunItem})
-     * @param defaultValue
-     *            The default value for this {@link ItemSetting}
+     * @param item         The {@link SlimefunItem} this {@link ItemSetting} belongs to
+     * @param key          The key under which this setting will be stored (relative to the {@link SlimefunItem})
+     * @param defaultValue The default value for this {@link ItemSetting}
      */
     public ItemSetting(SlimefunItem item, String key, T defaultValue) {
         this.item = item;
@@ -45,9 +42,7 @@ public ItemSetting(SlimefunItem item, String key, T defaultValue) {
      * This method checks if a given input would be valid as a value for this
      * {@link ItemSetting}. You can override this method to implement your own checks.
      *
-     * @param input
-     *            The input value to validate
-     *
+     * @param input The input value to validate
      * @return Whether the given input was valid
      */
     public boolean validateInput(T input) {
@@ -59,17 +54,10 @@ public boolean validateInput(T input) {
      * Override this method to catch changes of a value.
      * A value may never be null.
      *
-     * @param newValue
-     *            The new value for this {@link ItemSetting}
+     * @param newValue The new value for this {@link ItemSetting}
      */
     public void update(T newValue) {
-        if (validateInput(newValue)) {
-            this.value = newValue;
-        } else {
-            throw new IllegalArgumentException("The passed value was not valid. (Maybe null?)");
-        }
-
-        // Feel free to override this as necessary.
+        this.value = newValue;
     }
 
     /**
@@ -105,9 +93,7 @@ public T getValue() {
     /**
      * This method checks if this {@link ItemSetting} stores the given data type.
      *
-     * @param c
-     *            The class of data type you want to compare
-     *
+     * @param c The class of data type you want to compare
      * @return Whether this {@link ItemSetting} stores the given type
      */
     public boolean isType(Class<?> c) {
@@ -127,7 +113,6 @@ protected String getErrorMessage() {
     /**
      * This method is called by a {@link SlimefunItem} which wants to load its {@link ItemSetting}
      * from the {@link Config} file.
-     *
      */
     @SuppressWarnings("unchecked")
     public void reload() {
@@ -143,16 +128,16 @@ public void reload() {
                 this.value = newValue;
             } else {
                 item.warn("发现在 Items.yml 中有无效的物品设置!"
-                        + "\n  在 \""
-                        + item.getId()
-                        + "."
-                        + getKey()
-                        + "\""
-                        + "\n  "
-                        + configuredValue
-                        + " 不是一个有效值!"
-                        + "\n"
-                        + getErrorMessage());
+                          + "\n  在 \""
+                          + item.getId()
+                          + "."
+                          + getKey()
+                          + "\""
+                          + "\n  "
+                          + configuredValue
+                          + " 不是一个有效值!"
+                          + "\n"
+                          + getErrorMessage());
 
             }
         } else {
@@ -162,17 +147,17 @@ public void reload() {
                     : configuredValue.getClass().getSimpleName();
 
             item.warn("发现在 Items.yml 中有无效的物品设置!"
-                    + "\n请只设置有效的值."
-                    + "\n  在 \""
-                    + item.getId()
-                    + "."
-                    + getKey()
-                    + "\""
-                    + "\n  期望值为 \""
-                    + defaultValue.getClass().getSimpleName()
-                    + "\" 但填写了: \""
-                    + found
-                    + "\"");
+                      + "\n请只设置有效的值."
+                      + "\n  在 \""
+                      + item.getId()
+                      + "."
+                      + getKey()
+                      + "\""
+                      + "\n  期望值为 \""
+                      + defaultValue.getClass().getSimpleName()
+                      + "\" 但填写了: \""
+                      + found
+                      + "\"");
 
         }
     }

src/main/java/io/github/thebusybiscuit/slimefun4/api/items/SlimefunItem.java

@@ -337,10 +337,6 @@ public boolean isDisabledIn(World world) {
      * @return The {@link SlimefunAddon} that registered this {@link SlimefunItem}
      */
     public final SlimefunAddon getAddon() {
-        if (addon == null) {
-            throw new UnregisteredItemException(this);
-        }
-
         return addon;
     }
 

src/main/java/io/github/thebusybiscuit/slimefun4/api/items/groups/LockedItemGroup.java

@@ -105,12 +105,6 @@ public void register(SlimefunAddon addon) {
      * @see #removeParent(ItemGroup)
      */
     public void addParent(ItemGroup group) {
-        if (group == this || group == null) {
-            throw new IllegalArgumentException("ItemGroup '"
-                    + item.getItemMeta().getDisplayName()
-                    + "' cannot be a parent of itself or have a 'null' parent.");
-        }
-
         parents.add(group);
     }
 

src/main/java/io/github/thebusybiscuit/slimefun4/api/player/PlayerBackpack.java

@@ -173,7 +173,7 @@ public static void bindItem(ItemStack item, PlayerBackpack bp) {
     }
 
     public static void setItemDisplayInfo(ItemStack item, PlayerBackpack bp) {
-        var meta = item.getItemMeta();
+        ItemMeta meta = item.getItemMeta();
         setItem(meta, bp);
         item.setItemMeta(meta);
     }
@@ -210,10 +210,6 @@ private static void setItem(ItemMeta meta, PlayerBackpack bp) {
 
     public PlayerBackpack(
             OfflinePlayer owner, UUID uuid, String name, int id, int size, @Nullable ItemStack[] contents) {
-        if (size < 9 || size > 54 || size % 9 != 0) {
-            throw new IllegalArgumentException("Invalid size! Size must be one of: [9, 18, 27, 36, 45, 54]");
-        }
-
         this.owner = owner;
         this.uuid = uuid;
         this.name = name;
@@ -225,9 +221,6 @@ public PlayerBackpack(
             return;
         }
 
-        if (size != contents.length) {
-            throw new IllegalArgumentException("Invalid contents: size mismatched!");
-        }
         inventory.setContents(contents);
     }
 
@@ -263,10 +256,6 @@ public void open(Player p) {
      *            The new size for this Backpack
      */
     public void setSize(int size) {
-        if (size < 9 || size > 54 || size % 9 != 0) {
-            throw new IllegalArgumentException("Invalid size! Size must be one of: [9, 18, 27, 36, 45, 54]");
-        }
-
         this.size = size;
         updateInv();
         Slimefun.getDatabaseManager().getProfileDataController().saveBackpackInfo(this);

src/main/java/io/github/thebusybiscuit/slimefun4/api/researches/Research.java

@@ -38,6 +38,11 @@ public class Research implements Keyed {
     private final int id;
     private final String name;
     private boolean enabled = true;
+    /**
+     * -- SETTER --
+     *  Sets the cost in XP levels to unlock this
+     */
+    @Setter
     @Getter
     private int levelCost;
     @Setter
@@ -161,26 +166,9 @@ public int getCost() {
      */
     @Deprecated
     public void setCost(int cost) {
-        if (levelCost < 0) {
-            throw new IllegalArgumentException("Research cost must be zero or greater!");
-        }
-
         levelCost = cost;
     }
 
-    /**
-     * Sets the cost in XP levels to unlock this {@link Research}.
-     *
-     * @param levelCost The cost in XP levels
-     */
-    public void setLevelCost(int levelCost) {
-        if (levelCost < 0) {
-            throw new IllegalArgumentException("Research cost must be zero or greater!");
-        }
-
-        this.levelCost = levelCost;
-    }
-
     /**
      * Bind the specified {@link SlimefunItem SlimefunItems} to this {@link Research}.
      *

src/main/java/io/github/thebusybiscuit/slimefun4/core/attributes/Rechargeable.java

@@ -44,16 +44,8 @@ public interface Rechargeable extends ItemAttribute {
      *            The amount of charge to store
      */
     default void setItemCharge(ItemStack item, float charge) {
-        if (item == null || item.getType() == Material.AIR) {
-            throw new IllegalArgumentException("Cannot set Item charge for null or AIR");
-        }
-
         float maximum = getMaxItemCharge(item);
 
-        if (charge < 0 || charge > maximum) {
-            throw new IllegalArgumentException("Charge must be between zero and " + maximum + ".");
-        }
-
         ItemMeta meta = item.getItemMeta();
         ChargeUtils.setCharge(meta, charge, maximum);
         item.setItemMeta(meta);
@@ -68,10 +60,6 @@ default void setItemCharge(ItemStack item, float charge) {
      * @return The charge stored on this {@link ItemStack}
      */
     default float getItemCharge(ItemStack item) {
-        if (item == null || item.getType() == Material.AIR) {
-            throw new IllegalArgumentException("Cannot get Item charge for null or AIR");
-        }
-
         return ChargeUtils.getCharge(item.getItemMeta());
     }
 
@@ -96,10 +84,6 @@ default float getDistanceToMaxCharge(ItemStack item) {
      * @return Whether the given charge could be added successfully
      */
     default boolean addItemCharge(ItemStack item, float charge) {
-        if (item == null || item.getType() == Material.AIR) {
-            throw new IllegalArgumentException("Cannot add Item charge for null or AIR");
-        }
-
         ItemMeta meta = item.getItemMeta();
         float currentCharge = ChargeUtils.getCharge(meta);
         float maximum = getMaxItemCharge(item);
@@ -128,10 +112,6 @@ default boolean addItemCharge(ItemStack item, float charge) {
      * @return Whether the given charge could be removed successfully
      */
     default boolean removeItemCharge(ItemStack item, float charge) {
-        if (item == null || item.getType() == Material.AIR) {
-            throw new IllegalArgumentException("Cannot remove Item charge for null or AIR");
-        }
-
         ItemMeta meta = item.getItemMeta();
         float currentCharge = ChargeUtils.getCharge(meta);
 

src/main/java/io/github/thebusybiscuit/slimefun4/core/multiblocks/MultiBlock.java

@@ -49,14 +49,6 @@ public static Set<Tag<Material>> getSupportedTags() {
     private final boolean isSymmetric;
 
     public MultiBlock(SlimefunItem item, Material[] build, BlockFace trigger) {
-        if (build == null || build.length != 9) {
-            throw new IllegalArgumentException("MultiBlocks must have a length of 9!");
-        }
-
-        if (trigger != BlockFace.SELF && trigger != BlockFace.UP && trigger != BlockFace.DOWN) {
-            throw new IllegalArgumentException("Multiblock Blockface must be either UP, DOWN or SELF");
-        }
-
         this.item = item;
         this.blocks = build;
         this.trigger = trigger;