Next version

.github/workflows/test.yml

@@ -31,7 +31,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest]
-        node: [18, 20, 22, 24]
+        node: [22, 24]
         java: [25]
         architecture: [x64]
         include:

README.md

@@ -11,7 +11,7 @@
 Install this grunt plugin next to your project's [Gruntfile.js][getting_started] with:
 
 ```bash
-npm install grunt-html -D
+npm install grunt-html vnu-jar -D
 ```
 
 Then add this line to your project's `Gruntfile.js`:
@@ -183,6 +183,7 @@ Use this option to control the number of threads that grunt-html will use when v
 ## Potential pitfalls
 
 * vnu.jar requires Java 8 environment or up.
+* As of v19.0.0, `vnu-jar` is no longer a bundled dependency and must be installed separately: `npm install vnu-jar -D`.
 
 ## License
 

lib/htmllint.js

@@ -55,7 +55,8 @@ function htmllint(config, done) {
         if (stderr) {
           try {
             result = parseErrorMessages(stderr, config);
-          } catch (error_) {
+          } catch(error_) {
+            // eslint-disable-next-line preserve-caught-error
             throw new Error(`${error_}\nInvalid input follows below:\n\n${stderr}`);
           }
 

lib/javaArgs.js

@@ -1,6 +1,11 @@
 'use strict';
 
-const jar = require('vnu-jar');
+let jar;
+try {
+  jar = require('vnu-jar');
+} catch {
+  throw new Error('vnu-jar is not installed. Run `npm install vnu-jar` to install it.');
+}
 
 // Determine proper jarfile arguments
 function javaArgs(java, chunk, config) {