8a4864e03f
Fixes https://github.com/spring-projects/spring-integration/issues/3061 Without a `@DirtiesContext` we keep not only a ctx in the cache, but also an embedded DB instance, which is shared between contexts. When ctx cache clean up happens, several ctxes would like to destroy their associated embedded DB which, essentially, is the same in-memory instance * The `@DirtiesContext` give us a chance to destroy embedded DB for the particular ctx in isolation