Guillaume Toison ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=70121%3... ) *created* an issue Hibernate ORM ( https://hibernate.atlassian.net/browse/HHH?atlOrigin=eyJpIjoiMzcwZDI1ZDc3... ) / Bug ( https://hibernate.atlassian.net/browse/HHH-16966?atlOrigin=eyJpIjoiMzcwZD... ) HHH-16966 ( https://hibernate.atlassian.net/browse/HHH-16966?atlOrigin=eyJpIjoiMzcwZD... ) StackOverFlowError with @ManyToOne and @Proxy( lazy=false ) ( https://hibernate.atlassian.net/browse/HHH-16966?atlOrigin=eyJpIjoiMzcwZD... ) Issue Type: Bug Affects Versions: 6.2.7 Assignee: Unassigned Components: hibernate-core Created: 21/Jul/2023 04:18 AM Priority: Major Reporter: Guillaume Toison ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=70121%3... ) Sorry for being a pest but as a follow-up to https://hibernate.atlassian.net/browse/HHH-16890 I still seem to have one case where a StackOverFlowError occurs. The problem seems to happen when an entity (with proxies disabled) is placed multiple times in the batch load queue. This might happen when several other entities link to it with: @ManyToOne(fetch = FetchType.LAZY) I’ll put together a test reproducing the problem and will add the link here ( https://hibernate.atlassian.net/browse/HHH-16966#add-comment?atlOrigin=ey... ) Add Comment ( https://hibernate.atlassian.net/browse/HHH-16966#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#100232- sha1:4329f54 )