bunch more general fixes

paper-api-generator/generated/io/papermc/paper/registry/keys/FluidKeys.java

@@ -0,0 +1,70 @@
+package io.papermc.paper.registry.keys;
+
+import static net.kyori.adventure.key.Key.key;
+
+import io.papermc.paper.generated.GeneratedFrom;
+import io.papermc.paper.registry.RegistryKey;
+import io.papermc.paper.registry.TypedKey;
+import net.kyori.adventure.key.Key;
+import org.bukkit.Fluid;
+import org.checkerframework.checker.nullness.qual.NonNull;
+import org.jetbrains.annotations.ApiStatus;
+
+/**
+ * Vanilla keys for {@link RegistryKey#FLUID}.
+ *
+ * @apiNote The fields provided here are a direct representation of
+ * what is available from the vanilla game source. They may be
+ * changed (including removals) on any Minecraft version
+ * bump, so cross-version compatibility is not provided on the
+ * same level as it is on most of the other API.
+ */
+@SuppressWarnings({
+        "unused",
+        "SpellCheckingInspection"
+})
+@GeneratedFrom("1.21.3")
+@ApiStatus.Experimental
+public final class FluidKeys {
+    /**
+     * {@code minecraft:empty}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Fluid> EMPTY = create(key("empty"));
+
+    /**
+     * {@code minecraft:flowing_lava}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Fluid> FLOWING_LAVA = create(key("flowing_lava"));
+
+    /**
+     * {@code minecraft:flowing_water}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Fluid> FLOWING_WATER = create(key("flowing_water"));
+
+    /**
+     * {@code minecraft:lava}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Fluid> LAVA = create(key("lava"));
+
+    /**
+     * {@code minecraft:water}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Fluid> WATER = create(key("water"));
+
+    private FluidKeys() {
+    }
+
+    private static @NonNull TypedKey<Fluid> create(final @NonNull Key key) {
+        return TypedKey.create(RegistryKey.FLUID, key);
+    }
+}