More CommandBlock API (#5746)

patches/api/0007-Adventure.patch

@@ -1103,6 +1103,49 @@ index dd0fef9155077ce6df7bdadc9e4152008f700a3b..92e8b0b1ccebdc2646337114793ea9f3
      /**
       * 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 372c0bd5a4d7800a11c24c95e39fe376a96232bf..73dce588d1f7a5048300073bf8c2b14d6da1e857 100644
+--- a/src/main/java/org/bukkit/block/CommandBlock.java
++++ b/src/main/java/org/bukkit/block/CommandBlock.java
+@@ -33,7 +33,9 @@ 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();
+ 
+@@ -43,6 +45,28 @@ 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 ab6b0ec328e94bf65a0dafd0403e5ee3b870296c..c8d37184d8e882a4084a1bfef85faa330588600b 100644
 --- a/src/main/java/org/bukkit/block/Sign.java