You can do this with the console plugin. It is useful for running ad-hoc code inside a running server.

To rerun your BootStrap init closure, browse to the web-based console at http://localhost:8080/appname/console. Enter the following in the console:

def servletCtx = org.codehaus.groovy.grails.web.context.ServletContextHolder.servletContext
def myBootstrapArtefact = grailsApplication.getArtefacts(‘Bootstrap’)[-1]
myBootstrapArtefact.referenceInstance.init(servletCtx)

ProsperaSoft offers Grails development solutions. You can email at info@prosperasoft.com to get in touch with ProsperaSoft Grails experts and consultants.