More CommandBlock API (#5746)

patches/api/Adventure.patch

@@ -1103,6 +1103,49 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
      /**
       * Returns a list of entities within a bounding box centered around a
       * Location.
+diff --git a/src/main/java/org/bukkit/block/CommandBlock.java b/src/main/java/org/bukkit/block/CommandBlock.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/block/CommandBlock.java
++++ b/src/main/java/org/bukkit/block/CommandBlock.java
+@@ -0,0 +0,0 @@ public interface CommandBlock extends TileState {
+      * by default is "@".
+      *
+      * @return Name of this CommandBlock.
++     * @deprecated in favour of {@link #name()}
+      */
++    @Deprecated // Paper
+     @NotNull
+     public String getName();
+ 
+@@ -0,0 +0,0 @@ public interface CommandBlock extends TileState {
+      * same as setting it to "@".
+      *
+      * @param name New name for this CommandBlock.
++     * @deprecated in favour of {@link #name(net.kyori.adventure.text.Component)}
+      */
++    @Deprecated // Paper
+     public void setName(@Nullable String name);
++
++    // Paper start
++    /**
++     * Gets the name of this CommandBlock.  The name is used with commands
++     * that this CommandBlock executes.  This name will never be null, and
++     * by default is a {@link net.kyori.adventure.text.TextComponent} containing {@code @}.
++     *
++     * @return Name of this CommandBlock.
++     */
++    public @NotNull net.kyori.adventure.text.Component name();
++
++    /**
++     * Sets the name of this CommandBlock.  The name is used with commands
++     * that this CommandBlock executes.  Setting the name to null is the
++     * same as setting it to a {@link net.kyori.adventure.text.TextComponent} containing {@code @}.
++     *
++     * @param name New name for this CommandBlock.
++     */
++    public void name(@Nullable net.kyori.adventure.text.Component name);
++    // Paper end
+ }
 diff --git a/src/main/java/org/bukkit/block/Sign.java b/src/main/java/org/bukkit/block/Sign.java
 index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
 --- a/src/main/java/org/bukkit/block/Sign.java