Make CompiledJavaVersionBuildItem more resilient

It seems like CI is occasionally failing on
`SmallryeJwtPersistentDevModeEncryptedTest` with
a stacktrace that originates from the compiled
version resolution.
Although the issue seems to be with the traversal of
the workspace, there is no reason to make
the compiled version resolution fail hard regardless
of the failure reason

Author: geoand

core/deployment/src/main/java/io/quarkus/deployment/steps/CompiledJavaVersionBuildStep.java

@@ -25,22 +25,28 @@ public class CompiledJavaVersionBuildStep {
     @BuildStep
     public CompiledJavaVersionBuildItem compiledJavaVersion(CurateOutcomeBuildItem curateOutcomeBuildItem) {
         final ResolvedDependency appArtifact = curateOutcomeBuildItem.getApplicationModel().getAppArtifact();
-        Integer majorVersion = getMajorJavaVersion(appArtifact);
-        if (majorVersion == null) {
-            // workspace info isn't available in prod builds though
-            for (ResolvedDependency module : curateOutcomeBuildItem.getApplicationModel()
-                    .getDependencies(DependencyFlags.WORKSPACE_MODULE)) {
-                majorVersion = getMajorJavaVersion(module);
-                if (majorVersion != null) {
-                    break;
+        try {
+            Integer majorVersion = getMajorJavaVersion(appArtifact);
+            if (majorVersion == null) {
+                // workspace info isn't available in prod builds though
+                for (ResolvedDependency module : curateOutcomeBuildItem.getApplicationModel()
+                        .getDependencies(DependencyFlags.WORKSPACE_MODULE)) {
+                    majorVersion = getMajorJavaVersion(module);
+                    if (majorVersion != null) {
+                        break;
+                    }
                 }
             }
-        }
-        if (majorVersion == null) {
-            log.debug("No .class files located");
+            if (majorVersion == null) {
+                log.debug("No .class files located");
+                return CompiledJavaVersionBuildItem.unknown();
+            }
+            return CompiledJavaVersionBuildItem.fromMajorJavaVersion(majorVersion);
+        } catch (Exception e) {
+            log.warn("Failed to parse major version", e);
             return CompiledJavaVersionBuildItem.unknown();
         }
-        return CompiledJavaVersionBuildItem.fromMajorJavaVersion(majorVersion);
+
     }
 
     private static Integer getMajorJavaVersion(ResolvedDependency artifact) {