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  1. Application Server 7
  2. AS7-5260

Synthetic method passed in InvocationContext


      We have a JEE interceptor that validates method calls using the MethodValidator from the hibernate-validator package. We are running into problems when generic methods on stateless session beans are called that have been overwritten in a subclass. The problem is that the InvocationContext passed into our interceptor references the synthetic bridge method generated by the compiler instead of the correct overwritten method. Synthetic methods are ignored by hibernate-validator (see BeanMetaDataImpl.initMethodConstraints). This results in a NullPointerException when hibernate-validator tries to validate the given synthetic bridge method.

      Code example:

      public interface CrudService<D extends PersistentElement> {
        D elementById(long id);
      public interface AccountService extends CrudService<Account> {
        ... some additional methods
      public class AbstractCrudServiceImpl<D extends PersistentElement> implements CrudService<D> {
        public D elementById(long id) {
           ... do something
      public class AccountServiceImpl extends AbstractCrudServiceImpl<Account> implements AccountService {
        public Account elementById(long id) {
          ... a specialized implementation
      public class SomeOtherSessionBean {
        private AccountService accountService;
        public void doSomething() {

      In the example code above 'SomeOtherSessionBean.doSomething()' calls the method 'elementById'. In that case the InvocationContext passed into our interceptor references the synthetic bridge method with the signature 'PersistentElement AccountServiceImpl.elementById(long)' instead of the concrete method 'Account AccountServiceImpl.elementById(long)'.

      This seems to be a bug, isn't it?

            sdouglas1@redhat.com Stuart Douglas
            woelfle_jira Thomas Woelfle (Inactive)
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