In https://tapestry.apache.org/runtime-exceptions.html, there’s an example that contributes an ExceptionHandlerAssistant. I think the method signature need to change from this:
public void contributeRequestExceptionHandler(OperationQueue operationQueue, MappedConfiguration<Class<?>, Class<?>> configuration) to this: public void contributeRequestExceptionHandler(OperationQueue operationQueue, MappedConfiguration<Class<?>, Object> configuration) Geoff
