Prashant Guleria ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=557058%... ) *commented* on HHH-16903 ( https://hibernate.atlassian.net/browse/HHH-16903?atlOrigin=eyJpIjoiMTc1NG... ) Re: java.lang.IllegalStateException: Illegal pop() with non-matching JdbcValuesSourceProcessingState ( https://hibernate.atlassian.net/browse/HHH-16903?atlOrigin=eyJpIjoiMTc1NG... ) Got it, Somehow the following exception was coming up but was not printed anywhere and after that illegal pop exception was thrown. Caused by: java.lang.NullPointerException: Cannot invoke "org.hibernate.engine.spi.SharedSessionContractImplementor.getPersistenceContext()" because "this.session" is null at org.hibernate.collection.spi.AbstractPersistentCollection.withTemporarySessionIfNeeded(AbstractPersistentCollection.java:289) at org.hibernate.collection.spi.AbstractPersistentCollection.readSize(AbstractPersistentCollection.java:148) at org.hibernate.collection.spi.PersistentSet.size(PersistentSet.java:151) at graphql.util.FpKit.toSize(FpKit.java:179) at graphql.execution.ExecutionStrategy.completeValueForList(ExecutionStrategy.java:518) at graphql.execution.ExecutionStrategy.completeValueForList(ExecutionStrategy.java:503) at graphql.execution.ExecutionStrategy.completeValue(ExecutionStrategy.java:442) at graphql.execution.ExecutionStrategy.completeField(ExecutionStrategy.java:407) at graphql.execution.ExecutionStrategy.lambda$resolveFieldWithInfo$1(ExecutionStrategy.java:213) at java.base/java.util.concurrent.CompletableFuture.uniApplyNow(CompletableFuture.java:684) ... 35 more ( https://hibernate.atlassian.net/browse/HHH-16903#add-comment?atlOrigin=ey... ) Add Comment ( https://hibernate.atlassian.net/browse/HHH-16903#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#100230- sha1:acc9c6f )