AwtProcessor use the default native-image version if necessary

[Karm]

fixes #35746

There is a warning displayed that the default version was used:

karm@laptop:~/workspaceRH/quarkus-quickstarts (main *=)
$ ./mvnw clean package -Dquarkus.package.type=native-sources -pl awt-graphics-rest-quickstart

[INFO] --- quarkus-maven-plugin:999-SNAPSHOT:build (default) @ awt-graphics-rest-quickstart ---
[WARNING] [io.quarkus.awt.deployment.AwtProcessor]
 native-image is not installed. Using the default 23.1.0 version as a reference to build native-sources step.
[INFO] [io.quarkus.deployment.pkg.steps.JarResultBuildStep] Building native image source jar: /home/karm/workspaceRH/quarkus-quickstarts/awt-graphics-rest-quickstart/target/awt-graphics-rest-quickstart-1.0.0-SNAPSHOT-native-image-source-jar/awt-graphics-rest-quickstart-1.0.0-SNAPSHOT-runner.jar
[INFO] [io.quarkus.deployment.pkg.steps.NativeImageBuildStep] The sources for a subsequent native-image run along with the necessary arguments can be found in /home/karm/workspaceRH/quarkus-quickstarts/awt-graphics-rest-quickstart/target/native-sources
[INFO] [io.quarkus.deployment.QuarkusAugmentor] Quarkus augmentation completed in 1376ms

I originally parsed the builder image link:

diff --git a/core/deployment/src/main/java/io/quarkus/deployment/pkg/NativeConfig.java b/core/deployment/src/main/java/io/quarkus/deployment/pkg/NativeConfig.java
index 9b193308ec9..aaf5196f49f 100644
--- a/core/deployment/src/main/java/io/quarkus/deployment/pkg/NativeConfig.java
+++ b/core/deployment/src/main/java/io/quarkus/deployment/pkg/NativeConfig.java
...
     String DEFAULT_GRAALVM_BUILDER_IMAGE = "quay.io/quarkus/ubi-quarkus-graalvmce-builder-image:jdk-21";
     String DEFAULT_MANDREL_BUILDER_IMAGE = "quay.io/quarkus/ubi-quarkus-mandrel-builder-image:jdk-21";
+    Pattern DEFAULT_BUILDER_IMAGE_PATTERN = Pattern.compile(
+            "[^:]*:(?:(?<mver>[^-]+)-java(?<mverjver>[0-9]+)|jdk-(?<jver>[1-9]+[0-9]*))");
... 
diff --git a/core/deployment/src/main/java/io/quarkus/deployment/pkg/steps/GraalVM.java b/core/deployment/src/main/java/io/quarkus/deployment/pkg/steps/GraalVM.java
index d711928b67b..1f9a046f8a5 100644
--- a/core/deployment/src/main/java/io/quarkus/deployment/pkg/steps/GraalVM.java
+++ b/core/deployment/src/main/java/io/quarkus/deployment/pkg/steps/GraalVM.java
@@ -1,5 +1,9 @@
 ...
@@ -129,7 +134,9 @@ private static String graalVersion(String buildInfo, int jdkFeature) {
     // Temporarily work around https://github.com/quarkusio/quarkus/issues/36246,
     // till we have a consensus on how to move forward in
     // https://github.com/quarkusio/quarkus/issues/34161
-    private static final Map<Integer, String> GRAAL_MAPPING = Map.of(22, "24.0",
+    public static final Map<Integer, String> GRAAL_MAPPING = Map.of(
+            21, "23.1",
+            22, "24.0",
             23, "24.1",
             24, "25.0",
             25, "25.1");
@@ -313,8 +320,35 @@ public boolean isJava17() {
         }
     }
 
+    /**
+     * @return default version of Mandrel builder image
+     */
+    public static Version getDefault() {
+        final Matcher m = DEFAULT_BUILDER_IMAGE_PATTERN.matcher(DEFAULT_MANDREL_BUILDER_IMAGE);
+        if (m.matches()) {
+            final String jver = m.group("jver");
+            final String mver = m.group("mver");
+            final String mverjver = m.group("mverjver");
+            if (!StringUtil.isNullOrEmpty(jver)) {
+                final int jverKey = Integer.parseInt(jver);
+                if (GRAAL_MAPPING.containsKey(jverKey)) {
+                    return new GraalVM.Version("native-image " + GRAAL_MAPPING.get(jverKey), GRAAL_MAPPING.get(jverKey), jver,
+                            Distribution.MANDREL);
+                } else {
+                    throw new RuntimeException("Unknown mapping between JDK version and native-image version.");
+                }
+            } else if (!StringUtil.isNullOrEmpty(mver) && !StringUtil.isNullOrEmpty(mverjver)) {
+                return new GraalVM.Version("native-image " + mver, mver, mverjver, Distribution.MANDREL);
+            } else {
+                throw new RuntimeException("Failed to parse Mandrel builder image name: " + DEFAULT_MANDREL_BUILDER_IMAGE);
+            }
+        } else {
+            throw new RuntimeException("Failed to parse Mandrel builder image name: " + DEFAULT_MANDREL_BUILDER_IMAGE);
+        }
+    }
+
     enum Distribution {
         GRAALVM,
-        MANDREL;
+        MANDREL
     }
 }
diff --git a/extensions/awt/deployment/src/main/java/io/quarkus/awt/deployment/AwtProcessor.java b/extensions/awt/deployment/src/main/java/io/quarkus/awt/deployment/AwtProcessor.java
index a3b4d06c212..47d16fe8679 100644
--- a/extensions/awt/deployment/src/main/java/io/quarkus/awt/deployment/AwtProcessor.java
+++ b/extensions/awt/deployment/src/main/java/io/quarkus/awt/deployment/AwtProcessor.java
@@ -7,6 +7,8 @@
...
@@ -103,7 +109,14 @@ void setupAWTInit(BuildProducer<JniRuntimeAccessBuildItem> jc,
             Optional<ProcessInheritIODisabledBuildItem> processInheritIODisabledBuildItem) {
         nativeImageRunnerBuildItem.getBuildRunner()
                 .setup(processInheritIODisabled.isPresent() || processInheritIODisabledBuildItem.isPresent());
-        final GraalVM.Version v = nativeImageRunnerBuildItem.getBuildRunner().getGraalVMVersion();
+        final GraalVM.Version v;
+        if (nativeImageRunnerBuildItem.getBuildRunner() instanceof NoopNativeImageBuildRunner) {
+            v = GraalVM.getDefault();
+            log.warnf("native-image is not installed. Using default %s version as a reference to build native-sources step.",
+                    v);
+        } else {
+            v = nativeImageRunnerBuildItem.getBuildRunner().getGraalVMVersion();
+        }
...

But that seems unnecessary and over-complicated. The current PR just picks the "CURRENT".

[quarkus-bot]

/cc @galderz (awt)

[quarkus-bot]

✔️ The latest workflow run for the pull request has completed successfully.

It should be safe to merge provided you have a look at the other checks in the summary.