[
https://issues.apache.org/jira/browse/WICKET-6167?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15306889#comment-15306889
]
Sven Meier commented on WICKET-6167:
------------------------------------
Your BasePage is sharing a component between all instances:
{code}
public BasePage(final PageParameters parameters) {
body.addOrReplace(SyncopeConsoleSession.get().getNotificationPanel());
}
{code}
SyncopeConsoleSession:
{code}
public NotificationPanel getNotificationPanel() {
if (notificationPanel == null) {
notificationPanel = new NotificationPanel(Constants.FEEDBACK);
notificationPanel.setOutputMarkupId(true);
}
return notificationPanel;
}
{code}
This is a recipe for exceptions, caused by modifications of a
WebMarkupContainer's children while the page is being serialized.
> Random ConcurrentModificationException since upgrade to 7.3.0
> -------------------------------------------------------------
>
> Key: WICKET-6167
> URL: https://issues.apache.org/jira/browse/WICKET-6167
> Project: Wicket
> Issue Type: Bug
> Components: wicket-native-websocket
> Affects Versions: 7.3.0
> Environment: Apache Syncope 2.0.0-SNAPSHOT
> Reporter: Francesco Chicchiriccò
> Assignee: Martin Grigorov
>
> As [reported in mailing
> list|https://lists.apache.org/thread.html/Zqmev2wqdxnjxya] we randomly see
> exceptions (see [an example|https://paste.apache.org/Q7Jy]) in Apache Syncope
> admin console logs after upgrading from Wicket 7.2.0.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
