GPMONGODB-72: After installing MongoDB Plugin NPE is thrown on startup

[graemerocher]

Original Reporter: ilyaj
Environment: Ubuntu, 10.x, Grails 1.3.7. Other plugins: email-confirmation-1.05, facebook-graph-0.12, fixtures-1.0.5, mail-1.0-SNAPSHOT
Version: 1.0.0.M6
Migrated From: http://jira.grails.org/browse/GPMONGODB-72

1. Install the plugin
2. Startup Grails (grails run-app)
3. Exception:

2011-07-06 20:27:59,559 [main] ERROR context.GrailsContextLoader - Error executing bootstraps: Error creating bean with name 'mongoDatastore': Cannot resolve reference to bean 'mongoMappingContext' while setting bean property 'mappingContext'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'mongoMappingContext': FactoryBean threw exception on object creation; nested exception is java.lang.NullPointerException
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'mongoDatastore': Cannot resolve reference to bean 'mongoMappingContext' while setting bean property 'mappingContext'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'mongoMappingContext': FactoryBean threw exception on object creation; nested exception is java.lang.NullPointerException
at org.grails.plugin.mongo.PersistenceContextInterceptorAggregator.postProcessBeanFactory(PersistenceContextInterceptorAggregator.groovy:98)
at org.grails.tomcat.TomcatServer.start(TomcatServer.groovy:212)
at grails.web.container.EmbeddableServer$start.call(Unknown Source)
at _GrailsRun_groovy$_run_closure5_closure12.doCall(_GrailsRun_groovy:158)
at _GrailsRun_groovy$_run_closure5_closure12.doCall(_GrailsRun_groovy)
at _GrailsSettings_groovy$_run_closure10.doCall(_GrailsSettings_groovy:280)
at _GrailsSettings_groovy$_run_closure10.call(_GrailsSettings_groovy)
at _GrailsRun_groovy$_run_closure5.doCall(_GrailsRun_groovy:149)
at _GrailsRun_groovy$_run_closure5.call(_GrailsRun_groovy)
at _GrailsRun_groovy.runInline(_GrailsRun_groovy:116)
at _GrailsRun_groovy.this$4$runInline(_GrailsRun_groovy)
at _GrailsRun_groovy$_run_closure1.doCall(_GrailsRun_groovy:59)
at RunApp$_run_closure1.doCall(RunApp:33)
at gant.Gant$_dispatch_closure5.doCall(Gant.groovy:381)
at gant.Gant$_dispatch_closure7.doCall(Gant.groovy:415)
at gant.Gant$_dispatch_closure7.doCall(Gant.groovy)
at gant.Gant.withBuildListeners(Gant.groovy:427)
at gant.Gant.this$2$withBuildListeners(Gant.groovy)
at gant.Gant$this$2$withBuildListeners.callCurrent(Unknown Source)
at gant.Gant.dispatch(Gant.groovy:415)
at gant.Gant.this$2$dispatch(Gant.groovy)
at gant.Gant.invokeMethod(Gant.groovy)
at gant.Gant.executeTargets(Gant.groovy:590)
at gant.Gant.executeTargets(Gant.groovy:589)
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'mongoMappingContext': FactoryBean threw exception on object creation; nested exception is java.lang.NullPointerException
... 24 more
Caused by: java.lang.NullPointerException
at java.lang.Class.isAssignableFrom(Native Method)
at org.grails.datastore.gorm.bean.factory.AbstractMappingContextFactoryBean.getObject(AbstractMappingContextFactoryBean.groovy:60)
at org.grails.datastore.gorm.bean.factory.AbstractMappingContextFactoryBean.getObject(AbstractMappingContextFactoryBean.groovy)
... 24 more

[graemerocher]

ilyaj said:
In addition, I have Hibernate plugin also installed. I wanted to have some domains mapped with MongoDB, and some with Hibernate, which the user guide says is possible. I'm using the static mapWith = 'mongo'.

[graemerocher]

ilyaj said:

[graemerocher]

mindthief said:

[graemerocher]

mindthief said:
If I replace "[SINGLE, MULTISELECT]" in the ProductAttributes.groovy file with the actual strings for those variables, i.e. "['single', 'multi']", then it no longer complains about this, but then throws a similar exception for another file that uses variable names for strings similarly to how this file does it. Changing all domain classes in my entire app to use raw strings instead of variable names seems like a pretty terrible way to work around this, so a fix would be really appreciated! Thanks!

[graemerocher]

burtbeckwith said:
Macros - you're seeing GPMONGODB-53

[graemerocher]

mindthief said:
Burt - thanks for the lead, I've reported it under that issue.

[graemerocher]

burtbeckwith said:
Fixed by spring-attic/grails-data-mapping@9b693c4