[ci skip] Cleanup events (#10202)

patches/api/Add-event-for-player-editing-sign.patch

@@ -14,6 +14,7 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +
 +import org.bukkit.block.Sign;
 +import org.bukkit.block.sign.Side;
++import org.bukkit.entity.HumanEntity;
 +import org.bukkit.entity.Player;
 +import org.bukkit.event.Cancellable;
 +import org.bukkit.event.HandlerList;
@@ -27,12 +28,15 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 + * Cancelling this event stops the sign editing menu from opening.
 + */
 +public class PlayerOpenSignEvent extends PlayerEvent implements Cancellable {
++
 +    private static final HandlerList HANDLER_LIST = new HandlerList();
-+    private boolean cancel = false;
++
 +    private final Sign sign;
 +    private final Side side;
 +    private final Cause cause;
 +
++    private boolean cancelled;
++
 +    @ApiStatus.Internal
 +    public PlayerOpenSignEvent(final @NotNull Player editor, final @NotNull Sign sign, final @NotNull Side side, final @NotNull Cause cause) {
 +        super(editor);
@@ -48,7 +52,7 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +     */
 +    @NotNull
 +    public Sign getSign() {
-+        return sign;
++        return this.sign;
 +    }
 +
 +    /**
@@ -59,7 +63,7 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +     */
 +    @NotNull
 +    public Side getSide() {
-+        return side;
++        return this.side;
 +    }
 +
 +    /**
@@ -68,17 +72,17 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +     * @return the cause
 +     */
 +    public @NotNull Cause getCause() {
-+        return cause;
++        return this.cause;
 +    }
 +
 +    @Override
 +    public boolean isCancelled() {
-+        return cancel;
++        return this.cancelled;
 +    }
 +
 +    @Override
 +    public void setCancelled(boolean cancel) {
-+        this.cancel = cancel;
++        this.cancelled = cancel;
 +    }
 +
 +    @NotNull
@@ -105,7 +109,7 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +         */
 +        INTERACT,
 +        /**
-+         * The event was triggered via a plugin with {@link org.bukkit.entity.HumanEntity#openSign(Sign, Side)}
++         * The event was triggered via a plugin with {@link HumanEntity#openSign(Sign, Side)}
 +         */
 +        PLUGIN,
 +        /**