[gatein-issues] [JBoss JIRA] Closed: (GTNPORTAL-599) Having ConcurrentModificationException exception when stopping web server

Having ConcurrentModificationException exception when stopping web server ------------------------------------------------------------------------- Key: GTNPORTAL-599 URL: https://issues.jboss.org/browse/GTNPORTAL-599 Project: GateIn Portal Issue Type: Bug Affects Versions: 3.0.0-Beta05 Environment: - Tomcat server Reporter: Trong Tran Assignee: Minh Hoang TO Fix For: 3.0.0-CR01 When i stop Tomcat i have got this : java.util.ConcurrentModificationException at java.util.AbstractList$Itr.checkForComodification(AbstractList.java:372) at java.util.AbstractList$Itr.next(AbstractList.java:343) at org.exoplatform.web.application.javascript.JavascriptConfigService.removeJavascript(JavascriptConfigService.java:192) at org.exoplatform.web.application.javascript.JavascriptRemoval.removeJavascript(JavascriptRemoval.java:76) at org.exoplatform.web.application.javascript.JavascriptRemoval.onEvent(JavascriptRemoval.java:59) at org.gatein.wci.impl.DefaultServletContainer.safeFireEvent(DefaultServletContainer.java:147) Also, I have got a similar problem when i try to undeploy the eXoResources.war which contains the Javascripts used in Portal. the problem seems to be evident that we ismodifing a Collection while iterating over it.