public void null_value()
{
ContributionDef def = newContributionDef("contributionPlaceholder1");
Map<Class, ContributionDef> keyToContribution = CollectionFactory.newMap();
Map<Class, Runnable> map = CollectionFactory.newMap();
ObjectLocator locator = mockObjectLocator();
replay();
MappedConfiguration<Class, Runnable> wrapper = new ValidatingMappedConfigurationWrapper<Class, Runnable>(
Runnable.class, locator, null, map, null, SERVICE_ID, def, Class.class, keyToContribution);