HHH-18505 fix npe occurring while processing module descriptor

Signed-off-by: Gavin King <[email protected]>

Author: gavinking

tooling/metamodel-generator/src/main/java/org/hibernate/processor/HibernateProcessor.java

@@ -367,7 +367,7 @@ private void processClasses(RoundEnvironment roundEnvironment) {
 			try {
 				if ( !included( element )
 						|| hasAnnotation( element, Constants.EXCLUDE )
-						|| hasAnnotation( context.getElementUtils().getPackageOf(element), Constants.EXCLUDE ) ) {
+						|| hasPackageAnnotation( element, Constants.EXCLUDE ) ) {
 					// skip it completely
 				}
 				else if ( isEntityOrEmbeddable( element ) ) {
@@ -420,6 +420,11 @@ else if ( element instanceof TypeElement ) {
 		}
 	}
 
+	private boolean hasPackageAnnotation(Element element, String annotation) {
+		final PackageElement pack = context.getElementUtils().getPackageOf( element ); // null for module descriptor
+		return pack != null && hasAnnotation( pack, annotation );
+	}
+
 	private void createMetaModelClasses() {
 
 		for ( Metamodel aux : context.getMetaAuxiliaries() ) {