Sylvain Dusart ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=63f6394... ) *commented* on HHH-16218 ( https://hibernate.atlassian.net/browse/HHH-16218?atlOrigin=eyJpIjoiMWExMz... ) Re: Natural id cache is extremely slow for entities with compound natural id ( https://hibernate.atlassian.net/browse/HHH-16218?atlOrigin=eyJpIjoiMWExMz... ) My suggestion seems to break at least one test in hibernate-core : {code} NaturalIdTest > testNaturalIdLoaderCached FAILED java.lang.AssertionError at NaturalIdTest.java:224 11764 tests completed, 1 failed, 1515 skipped FAILURE: Build failed with an exception. {code} I’ll try to have a look soon. ( https://hibernate.atlassian.net/browse/HHH-16218#add-comment?atlOrigin=ey... ) Add Comment ( https://hibernate.atlassian.net/browse/HHH-16218#add-comment?atlOrigin=ey... ) Get Jira notifications on your phone! Download the Jira Cloud app for Android ( https://play.google.com/store/apps/details?id=com.atlassian.android.jira.... ) or iOS ( https://itunes.apple.com/app/apple-store/id1006972087?pt=696495&ct=Em... ) This message was sent by Atlassian Jira (v1001.0.0-SNAPSHOT#100216- sha1:64a4cf6 )