Method NamespacedKey

src/main/java/org/bukkit/NamespacedKey.java:46–56

Create a key in a specific namespace. @param namespace namespace @param key key @deprecated should never be used by plugins, for internal use only!!

(@NotNull String namespace, @NotNull String key)

     * @deprecated should never be used by plugins, for internal use only!!
     */
    @Deprecated
    public NamespacedKey(@NotNull String namespace, @NotNull String key) {
        Preconditions.checkArgument(namespace != null && VALID_NAMESPACE.matcher(namespace).matches(), "Invalid namespace. Must be [a-z0-9._-]: %s", namespace);
        Preconditions.checkArgument(key != null && VALID_KEY.matcher(key).matches(), "Invalid key. Must be [a-z0-9/._-]: %s", key);

        this.namespace = namespace;
        this.key = key;

        String string = toString();
        Preconditions.checkArgument(string.length() < 256, "NamespacedKey must be less than 256 characters", string);
    }

    /**
     * Create a key in the plugin's namespace.