RedisService withConnection broken due to unwired grailsApplication

[yuenhsi]

Currently, calling redisService.withConnection throws a NullPointerException.

RedisService withConnection(String connectionName){
        if(grailsApplication.mainContext.containsBean("redisService${connectionName.capitalize()}")){
            return (RedisService)grailsApplication.mainContext.getBean("redisService${connectionName.capitalize()}")
        }
        ...
    }

Referencing grailsApplication.mainContext causes the exception, with the message being Cannot get property 'mainContext' on null object. I believe autowiring GrailsApplication is not done properly, seeing that this is the only method that makes use of this bean. I look a look at the tests, and it seems like even though retrieving the GrailsApplication bean is tested in a vacuum, the withConnection method itself is not touched.

Currently a workaround for this issue is adding the following to BootStrap.groovy.

def grailsApplication
    def redisService

    def init = { servletContext ->
        redisService.grailsApplication = grailsApplication
    }

[ctoestreich]

What version of grails/plugin?

[yuenhsi]

This happens on Grails 3.1.12, using what I believe the only version of Redis plugin (v2.0.4) available for Grails 3.x.x.

https://bintray.com/ctoestreich/grails-plugins/redis

[Joshua-Brent-Collins]

I also see this using Redis-Plugin 2.0.4, Grails 3.2.11, Groovy 2.4.11 and JVM 1.8.0_31