I'm seeing a build failure with Java 11 on the master branch (below). It would be nice to get this fixed up since Java 11 has been released for a while now. Thanks!
[ERROR] Tests run: 2, Failures: 0, Errors: 2, Skipped: 0, Time elapsed: 0.166 s <<< FAILURE! - in org.apache.cayenne.cache.invalidation.CacheInvalidationCacheGroupsHandlerIT [ERROR] invalidateE1(org.apache.cayenne.cache.invalidation.CacheInvalidationCacheGroupsHandlerIT) Time elapsed: 0.081 s <<< ERROR! java.lang.NoSuchMethodError: org.apache.cayenne.cache.invalidation.CacheInvalidationCacheGroupsHandlerIT.access$0(Lorg/apache/cayenne/cache/invalidation/CacheInvalidationCacheGroupsHandlerIT;)Ljava/util/concurrent/atomic/AtomicInteger; at org.apache.cayenne.cache.invalidation.CacheInvalidationCacheGroupsHandlerIT.invalidateE1(CacheInvalidationCacheGroupsHandlerIT.java:98) [ERROR] invalidateE2(org.apache.cayenne.cache.invalidation.CacheInvalidationCacheGroupsHandlerIT) Time elapsed: 0.079 s <<< ERROR! java.lang.NoSuchMethodError: org.apache.cayenne.cache.invalidation.CacheInvalidationCacheGroupsHandlerIT.access$1(Lorg/apache/cayenne/cache/invalidation/CacheInvalidationCacheGroupsHandlerIT;)Ljava/util/concurrent/atomic/AtomicInteger; at org.apache.cayenne.cache.invalidation.CacheInvalidationCacheGroupsHandlerIT.invalidateE2(CacheInvalidationCacheGroupsHandlerIT.java:135)