Fix version check for gu and add a better warning.

.github/workflows/test.yml

@@ -35,6 +35,10 @@ jobs:
           - java-version: 'dev'
             distribution: ''
             os: windows-latest
+          - java-version: '17.0.7'
+            distribution: 'graalvm-community'
+            os: ubuntu-latest
+            components: 'native-image' # should print a warning but not fail
     steps:
       - uses: actions/checkout@v3
       - name: Run setup-graalvm action

src/gu.ts

@@ -37,13 +37,19 @@ export async function setUpGUComponents(
   if (
     graalVMVersion === c.VERSION_DEV ||
     javaVersion === c.VERSION_DEV ||
-    (semverValid(javaVersion) && semverGte(javaVersion, '21'))
+    (semverValid(javaVersion) && semverGte(javaVersion, '21.0.0'))
   ) {
-    core.warning(
-      `Unable to install component(s): '${components.join(
-        ','
-      )}'. The latest GraalVM dev builds and the upcoming GraalVM for JDK 21 no longer include the GraalVM Updater: https://github.com/oracle/graal/issues/6855`
-    )
+    if (components.length == 1 && components[0] === 'native-image') {
+      core.warning(
+        `Please remove "components: 'native-image'" from your workflow file. It is automatically included since GraalVM for JDK 17: https://github.com/oracle/graal/pull/5995`
+      )
+    } else {
+      core.warning(
+        `Unable to install component(s): '${components.join(
+          ','
+        )}'. The latest GraalVM dev builds and the upcoming GraalVM for JDK 21 no longer include the GraalVM Updater: https://github.com/oracle/graal/issues/6855`
+      )
+    }
   } else if (graalVMVersion.startsWith(c.MANDREL_NAMESPACE)) {
     core.warning(
       `Mandrel does not support GraalVM component(s): '${components.join(',')}'`