Čedomir Igaly ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=557058%... ) *commented* on HHH-16781 ( https://hibernate.atlassian.net/browse/HHH-16781?atlOrigin=eyJpIjoiYWZiZm... ) Re: @JavaType annotation is ignored when Basic type is already registered for same JabcType/Java class pair ( https://hibernate.atlassian.net/browse/HHH-16781?atlOrigin=eyJpIjoiYWZiZm... ) Source of the problem is in method InferredBasicValueResolver#from. When explicitJavaType is non null, call to BasicTypeRegistry#resolve. This part of code is real source of the problem: basicType is non null since there is registered type corresponding to JavaType. Since basicType.jdbcType is identical to required JdbcType, it will be returned as result To avoid that problem, when explicitJavaType is non null, part of code is replaced by Which is copy&paste cerator parameter from BasicTypeRegistry#resolve ( https://hibernate.atlassian.net/browse/HHH-16781#add-comment?atlOrigin=ey... ) Add Comment ( https://hibernate.atlassian.net/browse/HHH-16781#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#100225- sha1:956085d )