An NullPointerException occurs when you use a @Formula annotation and a @Id annotation on the same class member.

Example Stacktrace:

Thread [pool-2-thread-2] (Suspended (exception NullPointerException))
Ejb3Column.forceNotNull() line: 477
AnnotationBinder.processElementAnnotations(PropertyHolder, Nullability, PropertyData, HashMap<String,IdentifierGeneratorDefinition>, EntityBinder, boolean, boolean, boolean, MetadataBuildingContext, Map<XClass,InheritanceState>) line: 2214
AnnotationBinder.processIdPropertiesIfNotAlready(Map<XClass,InheritanceState>, MetadataBuildingContext, PersistentClass, EntityBinder, PropertyHolder, HashMap<String,IdentifierGeneratorDefinition>, ElementsToProcess, boolean, Set<String>) line: 923
AnnotationBinder.bindClass(XClass, Map<XClass,InheritanceState>, MetadataBuildingContext) line: 750
AnnotationMetadataSourceProcessorImpl.processEntityHierarchies(Set<String>) line: 259
MetadataBuildingProcess$2.processEntityHierarchies(Set<String>) line: 244
MetadataBuildingProcess.build(MetadataSources, MetadataBuilderImpl$MetadataBuildingOptionsImpl) line: 287
MetadataBuilderImpl.build() line: 413
MetadataBuilderImpl.build() line: 99
EntityManagerFactoryBuilderImpl.<init>(PersistenceUnitDescriptor, Map, ClassLoader) line: 200
Bootstrap.getEntityManagerFactoryBuilder(PersistenceUnitDescriptor, Map, ClassLoader) line: 51
HibernatePersistenceProvider.getEntityManagerFactoryBuilder(PersistenceUnitDescriptor, Map, ClassLoader) line: 182
HibernatePersistenceProvider.getEntityManagerFactoryBuilderOrNull(String, Map, ClassLoader) line: 131
HibernatePersistenceProvider.getEntityManagerFactoryBuilderOrNull(String, Map) line: 88
HibernatePersistenceProvider.createEntityManagerFactory(String, Map) line: 69
Persistence.createEntityManagerFactory(String, Map) line: 55
Persistence.createEntityManagerFactory(String) line: 39
LimitPosition.getLimpos() line: 24
NativeMethodAccessorImpl.invoke0(Method, Object, Object[]) line: not available [native method]
NativeMethodAccessorImpl.invoke(Object, Object[]) line: not available
DelegatingMethodAccessorImpl.invoke(Object, Object[]) line: not available
Method.invoke(Object, Object...) line: not available
ResourceMethodInvocationHandlerFactory$1.invoke(Object, Method, Object[]) line: 81
AbstractJavaResourceMethodDispatcher$1.run() line: 164
JavaResourceMethodDispatcherProvider$TypeOutInvoker(AbstractJavaResourceMethodDispatcher).invoke(ContainerRequest, Object, Object...) line: 181
JavaResourceMethodDispatcherProvider$TypeOutInvoker.doDispatch(Object, ContainerRequest) line: 203
JavaResourceMethodDispatcherProvider$TypeOutInvoker(AbstractJavaResourceMethodDispatcher).dispatch(Object, ContainerRequest) line: 101
ResourceMethodInvoker.invoke(RequestProcessingContext, Object) line: 389
ResourceMethodInvoker.apply(RequestProcessingContext) line: 347
ResourceMethodInvoker.apply(Object) line: 102
ServerRuntime$2.run() line: 305
Errors$1.call() line: 271
Errors$1.call() line: 267
Errors.process(Callable<T>, boolean) line: 315
Errors.process(Producer<T>, boolean) line: 297
Errors.process(Runnable) line: 267
RequestScope.runInScope(RequestScope$Instance, Runnable) line: 317
ServerRuntime.process(ContainerRequest) line: 288
ApplicationHandler.handle(ContainerRequest) line: 1110
JdkHttpHandlerContainer.handle(HttpExchange) line: 179
Filter$Chain.doFilter(HttpExchange) line: not available
AuthFilter.doFilter(HttpExchange, Filter$Chain) line: not available
Filter$Chain.doFilter(HttpExchange) line: not available
ServerImpl$Exchange$LinkHandler.handle(HttpExchange) line: not available
Filter$Chain.doFilter(HttpExchange) line: not available
ServerImpl$Exchange.run() line: not available
ThreadPoolExecutor.runWorker(ThreadPoolExecutor$Worker) line: not available
ThreadPoolExecutor$Worker.run() line: not available
Thread.run() line: not available