When I upload my Spring application to Pivotal Web Services, I get the two errors:
ERR Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate
[org.springframework.http.converter.json.MappingJackson2HttpMessageConverter]: Factory
method 'jacksonHttpMessageConverter' threw exception; nested exception is
org.springframework.beans.factory.BeanCreationException: Error creating bean with name
'objectMapper' defined in class path resource
[io/app/config/AppRestMvcConfiguration.class]: Bean instantiation via factory method
failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to
instantiate [com.fasterxml.jackson.databind.ObjectMapper]: Factory method 'objectMapper'
threw exception; nested exception is java.lang.NullPointerException
and
Failed to instantiate [org.springframework.http.converter.json.MappingJackson2HttpMessageCo
nverter]: Factory method 'halJacksonHttpMessageConverter' threw exception; nested
exception is org.springframework.beans.factory.BeanCreationException: Error creating bean
with name 'halObjectMapper' defined in class path resource [io/papped/config/PappedRestMvcC
onfiguration.class]: Bean instantiation via factory method failed; nested exception is
org.springframework.beans.BeanInstantiationException: Failed to instantiate
[com.fasterxml.jackson.databind.ObjectMapper]: Factory method 'halObjectMapper' threw
exception; nested exception is java.lang.NullPointerException
So basically, it can't initialise the objectMapper and halObjectMapper in my configuration class (these are predefined in the SpringBootRepositoryRestMvcConfiguration
class). These errors do not occur when I run the app locally on my computer.
I have tried removing my config class but it still gives the error. I have tried manually instantiating the objectMapper/halObjectMapper by using the following code:
private final static ObjectMapper mapper = new ObjectMapper();
@Bean
@Primary
public com.fasterxml.jackson.databind.ObjectMapper objectMapper() {
return mapper;
}
@Bean
@Primary
public ObjectMapper halObjectMapper() {
return mapper;
}
This makes it run on pivotal web services, but gives a stack overflow error any time I try to access a MongoRepository (there are no circular references in my models).
How can this be solved?
The problem was the way I was setting up the mongo repository service for the cloud. Using the following code made it work:
@Configuration
@Profile("!local")
public class DatabaseConfiguration extends AbstractCloudConfig {
@Bean
public MongoDbFactory documentMongoDbFactory() {
return connectionFactory().mongoDbFactory();
}
}