HHH-6133 new added list was not put into map in GlobalAnnotations

hibernate-core/src/main/java/org/hibernate/metamodel/source/annotations/xml/mocker/GlobalAnnotations.java

@@ -67,6 +67,7 @@ class GlobalAnnotations implements JPADotNames {
 		List<AnnotationInstance> list = annotationInstanceMap.get( name );
 		if ( list == null ) {
 			list = new ArrayList<AnnotationInstance>();
+			annotationInstanceMap.put( name,list );
 		}
 		list.add( annotationInstance );
 		return annotationInstance;