How to debug Grails version greater than 2.4.4 in Intellij

Add the following to VM Options of the run configurations (locate the installation of grails)        

 -javaagent:/Users/<username>/.gvm/grails/2.5.0/lib/org.springframework/springloaded/jars/springloaded-1.2.3.RELEASE.jar  
 -Xverify:none