Use this information to troubleshoot issues with your cache integration configuration, including HTTP session and dynamic cache configurations.
Cause: You can reuse session IDs. If you create a data grid for session persistence in Version 7.1.1 or later, session ID reuse is automatically enabled. However, if you created prior configurations, this setting might already be set with the wrong value.
CWOBJ0006W: An exception occurred:
com.ibm.websphere.objectgrid.ObjectGridRuntimeException:
java.util.ConcurrentModificationException
This message occurs only when the replicationInterval parameter in the splicer.properties file is set to a value greater than zero and the Web application modifies a List object that was set as an attribute on the HTTPSession.
Solution: Clone the attribute that contains the modified List object and put the cloned attribute into the session object.
Cause: WebSphere eXtreme Scale does not identify filters and listeners defined using annotations or programmatically.
Solution: Filters and listeners must be explicitly declared in the web.xml file of the web application.