Begin switching to JSpecify annotations (#11448)

* Begin switching to JSpecify annotations

* more

* fixes

patches/api/Add-EntityFertilizeEggEvent.patch

@@ -21,8 +21,8 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +import org.bukkit.event.entity.EntityEvent;
 +import org.bukkit.inventory.ItemStack;
 +import org.jetbrains.annotations.ApiStatus;
-+import org.jetbrains.annotations.NotNull;
-+import org.jetbrains.annotations.Nullable;
++import org.jspecify.annotations.NullMarked;
++import org.jspecify.annotations.Nullable;
 +
 +/**
 + * Called when two entities mate and the mating process results in a fertilization.
@@ -35,23 +35,24 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 + * <li>Sniffers producing the {@link Material#SNIFFER_EGG} item, which needs to be placed before it can begin to hatch.</li>
 + * <li>A turtle being marked with "HasEgg" and laying a {@link Material#TURTLE_EGG} later.</li>
 + * </ul>
-+ *
++ * <p>
 + * The event hence only exposes the two parent entities in the fertilization process and cannot provide the child entity, as it will only exist at a later point in time.
 + */
++@NullMarked
 +public class EntityFertilizeEggEvent extends EntityEvent implements Cancellable {
 +
 +    private static final HandlerList HANDLER_LIST = new HandlerList();
 +
 +    private final LivingEntity mother;
 +    private final LivingEntity father;
-+    private final Player breeder;
-+    private final ItemStack bredWith;
++    private final @Nullable Player breeder;
++    private final @Nullable ItemStack bredWith;
 +    private int experience;
 +
 +    private boolean cancelled;
 +
 +    @ApiStatus.Internal
-+    public EntityFertilizeEggEvent(@NotNull LivingEntity mother, @NotNull LivingEntity father, @Nullable Player breeder, @Nullable ItemStack bredWith, int experience) {
++    public EntityFertilizeEggEvent(final LivingEntity mother, final LivingEntity father, final @Nullable Player breeder, final @Nullable ItemStack bredWith, final int experience) {
 +        super(mother);
 +        this.mother = mother;
 +        this.father = father;
@@ -60,7 +61,6 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +        this.experience = experience;
 +    }
 +
-+    @NotNull
 +    @Override
 +    public LivingEntity getEntity() {
 +        return (LivingEntity) super.getEntity();
@@ -72,7 +72,6 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +     *
 +     * @return The "mother" entity.
 +     */
-+    @NotNull
 +    public LivingEntity getMother() {
 +        return this.mother;
 +    }
@@ -83,7 +82,6 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +     *
 +     * @return the other parent
 +     */
-+    @NotNull
 +    public LivingEntity getFather() {
 +        return this.father;
 +    }
@@ -94,8 +92,7 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +     *
 +     * @return The Entity who initiated fertilization.
 +     */
-+    @Nullable
-+    public Player getBreeder() {
++    public @Nullable Player getBreeder() {
 +        return this.breeder;
 +    }
 +
@@ -104,8 +101,7 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +     *
 +     * @return ItemStack used to initiate fertilization.
 +     */
-+    @Nullable
-+    public ItemStack getBredWith() {
++    public @Nullable ItemStack getBredWith() {
 +        return this.bredWith;
 +    }
 +
@@ -124,7 +120,7 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +     *
 +     * @param experience experience amount
 +     */
-+    public void setExperience(int experience) {
++    public void setExperience(final int experience) {
 +        this.experience = experience;
 +    }
 +
@@ -134,17 +130,15 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +    }
 +
 +    @Override
-+    public void setCancelled(boolean cancel) {
++    public void setCancelled(final boolean cancel) {
 +        this.cancelled = cancel;
 +    }
 +
-+    @NotNull
 +    @Override
 +    public HandlerList getHandlers() {
 +        return HANDLER_LIST;
 +    }
 +
-+    @NotNull
 +    public static HandlerList getHandlerList() {
 +        return HANDLER_LIST;
 +    }