Andrea Boriero ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=557058%... ) *commented* on HHH-16553 ( https://hibernate.atlassian.net/browse/HHH-16553?atlOrigin=eyJpIjoiZTdkYT... ) Re: StackOverflowError when loading entities chained together ( https://hibernate.atlassian.net/browse/HHH-16553?atlOrigin=eyJpIjoiZTdkYT... ) Hi Guillaume Toison ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=70121%3... ) , I tried to execute you test and I have a the following stackoverflow java.lang.StackOverflowError at org.h2.command.Parser.readTermObjectDot(Parser.java:4834) at org.h2.command.Parser.readTermWithIdentifier(Parser.java:5213) at org.h2.command.Parser.readTerm(Parser.java:4901) at org.h2.command.Parser.readFactor(Parser.java:3398) at org.h2.command.Parser.readSum(Parser.java:3385) at org.h2.command.Parser.readConcat(Parser.java:3350) at org.h2.command.Parser.readCondition(Parser.java:3132) at org.h2.command.Parser.readExpression(Parser.java:3053) at org.h2.command.Parser.parseSelectExpressions(Parser.java:2853) at org.h2.command.Parser.parseSelect(Parser.java:2871) at org.h2.command.Parser.parseQueryPrimary(Parser.java:2762) at org.h2.command.Parser.parseQueryTerm(Parser.java:2633) at org.h2.command.Parser.parseQueryExpressionBody(Parser.java:2612) at org.h2.command.Parser.parseQueryExpressionBodyAndEndOfQuery(Parser.java:2605) at org.h2.command.Parser.parseQueryExpression(Parser.java:2598) at org.h2.command.Parser.parseQuery(Parser.java:2567) at org.h2.command.Parser.parsePrepared(Parser.java:724) at org.h2.command.Parser.parse(Parser.java:689) at org.h2.command.Parser.parse(Parser.java:661) at org.h2.command.Parser.prepareCommand(Parser.java:569) at org.h2.engine.SessionLocal.prepareLocal(SessionLocal.java:631) at org.h2.engine.SessionLocal.prepareCommand(SessionLocal.java:554) at org.h2.jdbc.JdbcConnection.prepareCommand(JdbcConnection.java:1116) at org.h2.jdbc.JdbcPreparedStatement.<init>(JdbcPreparedStatement.java:92) that is happening also in 5.5.8 and 5.6. My suggestion is not to use the Eager fetch for the parent. ( https://hibernate.atlassian.net/browse/HHH-16553#add-comment?atlOrigin=ey... ) Add Comment ( https://hibernate.atlassian.net/browse/HHH-16553#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- sha1:11e4e77 )