Hi Michael, I reproduced your problem. It's a known issue. Please take a look at this responce to find the workaround:
http://apache-ignite-users.70518.x6.nabble.com/How-to-use-rest-api-to-put-an-object-into-cache-td5897.html#a5955 Looks like this problem will be solved for basic types at next releases: https://issues.apache.org/jira/browse/IGNITE-3345 Best regards, Andrei -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/