Spock seems to bomb out when there's a delegate that contains a field that's Dependency-Injected. Any ideas for a work around? Grails 2.2.3/Spock 0.7

gistfile1.groovy

package delegatetest

import grails.plugin.spock.IntegrationSpec

class FooSpec extends IntegrationSpec {

    @Delegate FooTestSupport fooTestSupport = new FooTestSupport()

    def "test foo"() {
        expect:
        true
    }
}

class FooTestSupport {
    def sessionFactory
}

Stack trace:

Property 'sessionFactory' threw exception; nested exception is java.lang.NullPointerException
org.springframework.beans.MethodInvocationException: Property 'sessionFactory' threw exception; nested exception is java.lang.NullPointerException
	at grails.plugin.spock.IntegrationSpec.setupSpec(IntegrationSpec.groovy:47)
Caused by: java.lang.NullPointerException
	... 1 more