When initializing Ignite using an IgniteSpringBean and also having a SpringCacheManager defined, the SpringCacheManager throws an AssertionError in the onApplicationEvent() method due to it being called more than once.
There is an "assert ignite == null" that fails after the first call.
This is related to the changes in
IGNITE-8740. This happened immediately when I first tried to start Ignite after upgrading from 2.5 to 2.6.