JIRA: Delete inactive workflow without linked schema

jira_delete_worlflow.groovy

import com.atlassian.jira.component.ComponentAccessor

def workflowManager = ComponentAccessor.workflowManager
def schemeManager = ComponentAccessor.workflowSchemeManager

def sb = new StringBuffer()

// get 2 weeks ago date
today = new java.sql.Timestamp(new Date().getTime() - 120960000)

workflowManager.workflows.each {
    def schemes = schemeManager.getSchemesForWorkflow(it)
    if(schemes.size() == 0) {
    	def upd_date=it.getUpdatedDate()
        if( upd_date < today ) { 
        	sb.append("Deleting workflow: ${it.name} \n")
        	
            try {
              workflowManager.deleteWorkflow(it);
            } catch (RuntimeException e) {  // EDIT --- Should be Exception, RuntimeException
              return false
            }
        } else {
        	sb.append("SKIPPING ${upd_date} is after ${today} \n")
        }
    }
}

return sb.toString()