Merge pull request #84 from dsowza/master

Fix duplication of jobs in a clustered grails 3.3.x quartz 2.0.13 App

Author: kefirfromperm

grails-app/jobs/grails/plugin/asyncmail/AsynchronousMailJob.groovy

@@ -9,8 +9,8 @@ import groovy.util.logging.Slf4j
 class AsynchronousMailJob {
     static triggers = {}
 
-    def concurrent = false
-    def group = "AsynchronousMail"
+    static concurrent = false
+    static group = "AsynchronousMail"
 
     // Dependency injection
     AsynchronousMailProcessService asynchronousMailProcessService

grails-app/jobs/grails/plugin/asyncmail/ExpiredMessagesCollectorJob.groovy

@@ -6,8 +6,8 @@ import groovy.util.logging.Slf4j
 class ExpiredMessagesCollectorJob {
     static triggers = {}
 
-    def concurrent = false
-    def group = "AsynchronousMail"
+    static concurrent = false
+    static group = "AsynchronousMail"
 
     AsynchronousMailPersistenceService asynchronousMailPersistenceService