Hi Slavo, ClassCastException is caused by this issue: https://issues.apache.org/jira/browse/IGNITE-2852
Essentially, you have a TreeMap somewhere and it can't be converted to binary object. As a workaround you can create a wrapper class that will contain this map as a field. Can you try this and see if it helps? -Val -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/websession-clustering-problem-tp3437p3547.html Sent from the Apache Ignite Users mailing list archive at Nabble.com.
